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Vidal RM, Montero DA, Bentancor A, Arellano C, Alvarez A, Cundon C, Blanco Crivelli X, Del Canto F, Salazar JC, Oñate AA. Evaluation of the Humoral Response after Immunization with a Chimeric Subunit Vaccine against Shiga Toxin-Producing Escherichia coli in Pregnant Sows and Their Offspring. Vaccines (Basel) 2024; 12:726. [PMID: 39066363 DOI: 10.3390/vaccines12070726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/27/2024] [Accepted: 06/01/2024] [Indexed: 07/28/2024] Open
Abstract
Shiga toxin-producing Escherichia coli (STEC) poses a significant public health risk due to its zoonotic potential and association with severe human diseases, such as hemorrhagic colitis and hemolytic uremic syndrome. Ruminants are recognized as primary reservoirs for STEC, but swine also contribute to the epidemiology of this pathogen, highlighting the need for effective prevention strategies across species. Notably, a subgroup of STEC that produces Shiga toxin type 2e (Stx2e) causes edema disease (ED) in newborn piglets, economically affecting pig production. This study evaluates the immunogenicity of a chimeric protein-based vaccine candidate against STEC in pregnant sows and the subsequent transfer of immunity to their offspring. This vaccine candidate, which includes chimeric proteins displaying selected epitopes from the proteins Cah, OmpT, and Hes, was previously proven to be immunogenic in pregnant cows. Our analysis revealed a broad diversity of STEC serotypes within swine populations, with the cah and ompT genes being prevalent, validating them as suitable antigens for vaccine development. Although the hes gene was detected less frequently, the presence of at least one of these three genes in a significant proportion of STEC suggests the potential of this vaccine to target a wide range of strains. The vaccination of pregnant sows led to an increase in specific IgG and IgA antibodies against the chimeric proteins, indicating successful immunization. Additionally, our results demonstrated the effective passive transfer of maternal antibodies to piglets, providing them with immediate, albeit temporary, humoral immunity against STEC. These humoral responses demonstrate the immunogenicity of the vaccine candidate and are preliminary indicators of its potential efficacy. However, further research is needed to conclusively evaluate its impact on STEC colonization and shedding. This study highlights the potential of maternal vaccination to protect piglets from ED and contributes to the development of vaccination strategies to reduce the prevalence of STEC in various animal reservoirs.
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Affiliation(s)
- Roberto M Vidal
- Programa de Microbiología y Micología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile
- Instituto Milenio de Inmunología e Inmunoterapia, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile
| | - David A Montero
- Programa de Microbiología y Micología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile
- Centro Integrativo de Biología y Química Aplicada (CIBQA), Universidad Bernardo O'Higgins, Santiago 8320000, Chile
| | - Adriana Bentancor
- Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Instituto de Investigaciones en Epidemiología Veterinaria, Cátedra de Microbiología, Buenos Aires C1427CWO, Argentina
| | - Carolina Arellano
- Programa de Microbiología y Micología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile
| | - Alhejandra Alvarez
- Programa de Microbiología y Micología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile
| | - Cecilia Cundon
- Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Instituto de Investigaciones en Epidemiología Veterinaria, Cátedra de Microbiología, Buenos Aires C1427CWO, Argentina
| | - Ximena Blanco Crivelli
- Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Instituto de Investigaciones en Epidemiología Veterinaria, Cátedra de Microbiología, Buenos Aires C1427CWO, Argentina
| | - Felipe Del Canto
- Programa de Microbiología y Micología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile
| | - Juan C Salazar
- Programa de Microbiología y Micología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago 8380453, Chile
| | - Angel A Oñate
- Departamento de Microbiología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción 4070386, Chile
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Han X, Hu X, Jin W, Liu G. Dietary nutrition, intestinal microbiota dysbiosis and post-weaning diarrhea in piglets. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2024; 17:188-207. [PMID: 38800735 PMCID: PMC11126776 DOI: 10.1016/j.aninu.2023.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/12/2023] [Accepted: 12/21/2023] [Indexed: 05/29/2024]
Abstract
Weaning is a critical transitional point in the life cycle of piglets. Early weaning can lead to post-weaning syndrome, destroy the intestinal barrier function and microbiota homeostasis, cause diarrhea and threaten the health of piglets. The nutritional components of milk and solid foods consumed by newborn animals can affect the diversity and structure of their intestinal microbiota, and regulate post-weaning diarrhea in piglets. Therefore, this paper reviews the effects and mechanisms of different nutrients, including protein, dietary fiber, dietary fatty acids and dietary electrolyte balance, on diarrhea and health of piglets by regulating intestinal function. Protein is an essential nutrient for the growth of piglets; however, excessive intake will cause many harmful effects, such as allergic reactions, intestinal barrier dysfunction and pathogenic growth, eventually aggravating piglet diarrhea. Dietary fiber is a nutrient that alleviates post-weaning diarrhea in piglets, which is related to its promotion of intestinal epithelial integrity, microbial homeostasis and the production of short-chain fatty acids. In addition, dietary fatty acids and dietary electrolyte balance can also facilitate the growth, function and health of piglets by regulating intestinal epithelial function, immune system and microbiota. Thus, a targeted control of dietary components to promote the establishment of a healthy bacterial community is a significant method for preventing nutritional diarrhea in weaned piglets.
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Affiliation(s)
- Xuebing Han
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China
- College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, Changsha, Hunan 410125, China
| | - Xiangdong Hu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Wei Jin
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China
| | - Gang Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Hunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and Poultry, Changsha, Hunan 410125, China
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Guitart-Matas J, Ballester M, Fraile L, Darwich L, Giler-Baquerizo N, Tarres J, López-Soria S, Ramayo-Caldas Y, Migura-Garcia L. Gut microbiome and resistome characterization of pigs treated with commonly used post-weaning diarrhea treatments. Anim Microbiome 2024; 6:24. [PMID: 38702766 PMCID: PMC11067243 DOI: 10.1186/s42523-024-00307-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 04/05/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND The global burden of antimicrobial resistance demands additional measures to ensure the sustainable and conscious use of antimicrobials. For the swine industry, the post-weaning period is critical and for many years, antimicrobials have been the most effective strategy to control and treat post-weaning related infections. Among them, post-weaning diarrhea causes vast economic losses, as it severely compromises piglets' health and growth performance. In this study, 210 piglets were transferred from a farm with recurrent cases of post-weaning diarrhea to an experimental farm and divided into six different treatment groups to determine the effect of the different treatments on the growth performance and survival, the microbiome, and the resistome in a cross-sectional and longitudinal study. The different treatments included antimicrobials trimethoprim/sulfamethoxazole, colistin, and gentamicin, an oral commercial vaccine, a control with water acidification, and an untreated control. An extra group remained at the farm of origin following the implemented amoxicillin routine treatment. A total of 280 fecal samples from pigs at four different sampling times were selected for metagenomics: before weaning-treatment at the farm of origin, and three days, two weeks, and four weeks post-treatment. RESULTS The control group with water acidification showed a reduced death risk in the survival analyses and non-significant differences in average daily weight gain in comparison to the antibiotic-treated groups. However, the growth-promoting effect among antibiotic-treated groups was demonstrated when comparing against the untreated control group at the experimental farm. After four weeks of treatment, diversity indexes revealed significantly decreased diversity for the untreated control and the group that remained at the farm of origin treated with amoxicillin. For this last group, impaired microbial diversity could be related to the continuous amoxicillin treatment carried out at the farm. Analysis of the resistome showed that both gentamicin and amoxicillin treatments significantly contributed to the emergence of resistance, while trimethoprim/sulphonamide and colistin did not, suggesting that different treatments contribute differently to the emergence of resistance. CONCLUSIONS Overall, this shotgun longitudinal metagenomics analysis demonstrates that non-antibiotic alternatives, such as water acidification, can contribute to reducing the emergence of antimicrobial resistance without compromising pig growth performance and gut microbiome.
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Affiliation(s)
- Judith Guitart-Matas
- Joint Research Unit IRTA-UAB in Animal Health, Animal Health Research Centre (CReSA), Autonomous University of Barcelona (UAB), Catalonia, Spain
- Institute of Agrifood Research and Technology (IRTA), Animal Health Program (CReSA), WOAH Collaborating Centre for the Research and Control of Emerging and Re-Emerging Swine Diseases in Europe, Autonomous University of Barcelona (UAB), Catalonia, Spain
- Animal Breeding and Genetics Program, Institute of Agrifood Research and Technology (IRTA), Catalonia, Spain
| | - Maria Ballester
- Animal Breeding and Genetics Program, Institute of Agrifood Research and Technology (IRTA), Catalonia, Spain
| | - Lorenzo Fraile
- School of Agrifood and Forestry Science and Engineering (ETSEA), Department of Animal Production, University of Lleida, Catalonia, Spain
| | - Laila Darwich
- Department of Animal Health and Anatomy, Autonomous University of Barcelona (UAB), Catalonia, Spain
| | - Noemí Giler-Baquerizo
- Joint Research Unit IRTA-UAB in Animal Health, Animal Health Research Centre (CReSA), Autonomous University of Barcelona (UAB), Catalonia, Spain
- Institute of Agrifood Research and Technology (IRTA), Animal Health Program (CReSA), WOAH Collaborating Centre for the Research and Control of Emerging and Re-Emerging Swine Diseases in Europe, Autonomous University of Barcelona (UAB), Catalonia, Spain
| | - Joaquim Tarres
- Animal Breeding and Genetics Program, Institute of Agrifood Research and Technology (IRTA), Catalonia, Spain
| | - Sergio López-Soria
- Joint Research Unit IRTA-UAB in Animal Health, Animal Health Research Centre (CReSA), Autonomous University of Barcelona (UAB), Catalonia, Spain
- Institute of Agrifood Research and Technology (IRTA), Animal Health Program (CReSA), WOAH Collaborating Centre for the Research and Control of Emerging and Re-Emerging Swine Diseases in Europe, Autonomous University of Barcelona (UAB), Catalonia, Spain
| | - Yuliaxis Ramayo-Caldas
- Animal Breeding and Genetics Program, Institute of Agrifood Research and Technology (IRTA), Catalonia, Spain
| | - Lourdes Migura-Garcia
- Joint Research Unit IRTA-UAB in Animal Health, Animal Health Research Centre (CReSA), Autonomous University of Barcelona (UAB), Catalonia, Spain.
- Institute of Agrifood Research and Technology (IRTA), Animal Health Program (CReSA), WOAH Collaborating Centre for the Research and Control of Emerging and Re-Emerging Swine Diseases in Europe, Autonomous University of Barcelona (UAB), Catalonia, Spain.
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Yao T, Ye L, Wang S, Lu J, Li H, Yu G. Effects of cadmium exposure on gut microbiota and antibiotic resistance genes in Haliotis diversicolor abalone. CHEMOSPHERE 2024; 352:141507. [PMID: 38387663 DOI: 10.1016/j.chemosphere.2024.141507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 12/03/2023] [Accepted: 02/19/2024] [Indexed: 02/24/2024]
Abstract
Heavy metals in soil, water, and industrial production can affect the antibiotic resistance of bacteria. Antibiotic resistance in gut microbiota has been extensively researched. The effects of cadmium (Cd) was investigated on the gut microbiota and antibiotic resistance genes (ARGs) of Haliotis diversicolor, a commercially important abalone species. By exposing H. diversicolor to four concentrations of Cd (0 μg L-1 (control), 6.5 μg L-1 (low), 42.25 μg L-1 (medium), and 274.63 μg L-1 (high)) for 30 and 60 days, 16 types of ARG (aadA-01, aadA-02, cfr, dfrA1, ermB, floR, folA, mecA, sul2, tetB-01, tetC-01, tetD-01, tetG-01, tetM-02, tetQ, vanC-01), and 1213 genus and 27 phylum microbiomes were detected. ARGs can be resistant to aminoglycoside, beta-lactamase, macrolide-lincosamide-streptogramin B, multidrug, florfenicol, macrolide, sulfonamides, tetracyclines, and vancomycin. Cadmium exposure significantly alters the abundance of tetC-01, tetB-01, tetQ, sul2, and aadA-01. About 5% (61) of genus-level microorganisms were significantly affected by Cd exposure. Microbiota alpha and beta diversities in the 60-day 42.25 μg L-1 Cd treatment differed significantly from those in other treatments. In addition, 26 pathogens were detected, and two pathogens (Vibrio and Legionella) were significantly affected by Cd exposure. Significant correlations between pathogens and ARGs increased with increased Cd concentration after 60 days of Cd exposure. Cadmium exposure may cause gut microbiota disturbance in H. diversicolor and increase the likelihood of ARG transfer to pathogens, increasing potential ecological and economic risks.
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Affiliation(s)
- Tuo Yao
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China; Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Research Center of Hydrobiology, Jinan University, Guangzhou, China
| | - Lingtong Ye
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China.
| | - Sijie Wang
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Jie Lu
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Huan Li
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Gang Yu
- Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
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Lee KY, Atwill ER, Li X, Feldmann HR, Williams DR, Weimer BC, Aly SS. Impact of zinc supplementation on phenotypic antimicrobial resistance of fecal commensal bacteria from pre-weaned dairy calves. Sci Rep 2024; 14:4448. [PMID: 38396015 PMCID: PMC10891156 DOI: 10.1038/s41598-024-54738-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 02/15/2024] [Indexed: 02/25/2024] Open
Abstract
The objective of this study was to evaluate the impact of dietary zinc supplementation in pre-weaned dairy calves on the phenotypic antimicrobial resistance (AMR) of fecal commensal bacteria. A repository of fecal specimens from a random sample of calves block-randomized into placebo (n = 39) and zinc sulfate (n = 28) groups collected over a zinc supplementation clinical trial at the onset of calf diarrhea, calf diarrheal cure, and the last day of 14 cumulative days of zinc or placebo treatment were analyzed. Antimicrobial susceptibility testing was conducted for Enterococcus spp. (n = 167) and E. coli (n = 44), with one representative isolate of each commensal bacteria tested per sample. Parametric survival interval regression models were constructed to evaluate the association between zinc treatment and phenotypic AMR, with exponentiated accelerated failure time (AFT) coefficients adapted for MIC instead of time representing the degree of change in AMR (MIC Ratio, MR). Findings from our study indicated that zinc supplementation did not significantly alter the MIC in Enterococcus spp. for 13 drugs: gentamicin, vancomycin, ciprofloxacin, erythromycin, penicillin, nitrofurantoin, linezolid, quinupristin/dalfopristin, tylosin tartrate, streptomycin, daptomycin, chloramphenicol, and tigecycline (MR = 0.96-2.94, p > 0.05). In E. coli, zinc supplementation was not associated with resistance to azithromycin (MR = 0.80, p > 0.05) and ceftriaxone (MR = 0.95, p > 0.05). However, a significant reduction in E. coli MIC values was observed for ciprofloxacin (MR = 0.17, 95% CI 0.03-0.97) and nalidixic acid (MR = 0.28, 95% CI 0.15-0.53) for zinc-treated compared to placebo-treated calves. Alongside predictions of MIC values generated from these 17 AFT models, findings from this study corroborate the influence of age and antimicrobial exposure on phenotypic AMR.
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Affiliation(s)
- Katie Y Lee
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA
| | - Edward R Atwill
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA
| | - Xunde Li
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA
| | - Hillary R Feldmann
- Veterinary Medicine Teaching and Research Center, University of California Davis, Tulare, CA, USA
| | - Deniece R Williams
- Veterinary Medicine Teaching and Research Center, University of California Davis, Tulare, CA, USA
| | - Bart C Weimer
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA
| | - Sharif S Aly
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA.
- Veterinary Medicine Teaching and Research Center, University of California Davis, Tulare, CA, USA.
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Nuamah E, Poaty Ditengou JIC, Hirwa F, Cheon I, Chae B, Choi NJ. Dietary Supplementation of Tannins: Effect on Growth Performance, Serum Antioxidant Capacity, and Immunoglobins of Weaned Piglets-A Systematic Review with Meta-Analysis. Antioxidants (Basel) 2024; 13:236. [PMID: 38397834 PMCID: PMC10886058 DOI: 10.3390/antiox13020236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/06/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
In recent years, the swine industry has witnessed the withdrawal of antibiotics and continuous regulation of zinc and copper oxides in the early-life nutrition of piglets. Due to this development, alternative additives from plant sources have been extensively explored. Therefore, this study's objective was to evaluate the effect of dietary supplementation with tannins on weaned piglets' growth performance, serum antioxidant capacity, and serum immune status using a systematic review and meta-analysis approach. A total of 16 studies with parameters of interest were deemed eligible after a two-step screening process following a comprehensive literature search in the scientific databases of Web of Science, Scopus, ScienceDirect, PubMed, and Google Scholar. The inclusion criteria were mainly (1) studies involving basal diet supplemented with tannins and (2) studies with the quantification of tannin doses, while the exclusion criteria were (1) studies with pre- and post-weaning pigs and (2) challenged studies. Applying the random-effects models, Hedges' g effect size of supplementation with tannins was calculated using R software to determine the standardized mean difference (SMD) at a 95% confidence interval. Sub-group analysis and meta-regression further explored heterogeneity (PSMD < 0.05, I2 > 50%, n ≥ 10). Supplementation with tannins reduced the feed conversion ratio (p < 0.01) but increased the final body weight (p < 0.01) of weaned piglets. Chestnut and grape seed proanthocyanidin tannin sources yielded higher effects on growth performance. In addition, meta-regression models indicated that tannin dosage and supplementation duration were directly associated with tannins' effectiveness on productive performance. In the serum, the concentration of glutathione peroxidase, superoxide dismutase, and total antioxidant capacity were elevated (p < 0.01) in response to tannin supplementation, whereas malondialdehydes was reduced (p < 0.01). Likewise, increased immunoglobin M and G levels (p < 0.01) were detected. In conclusion, dietary supplementation with tannins, particularly with chestnut and grape seed proanthocyanidins, increases the productivity of weaned piglets. At the same time, it is a possible nutritional strategy to mitigate oxidative stress and stimulate gut health. Thus, supplementing chestnut and grape seed proanthocyanidin tannins in the early phase of swine production could be used to alleviate the incidence of diarrhea.
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Affiliation(s)
- Emmanuel Nuamah
- Department of Animal Science, Jeonbuk National University, Jeonju 54896, Republic of Korea; (J.I.C.P.D.); (F.H.); (I.C.); (B.C.)
| | | | | | | | | | - Nag-Jin Choi
- Department of Animal Science, Jeonbuk National University, Jeonju 54896, Republic of Korea; (J.I.C.P.D.); (F.H.); (I.C.); (B.C.)
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Cardoso O, Assis G, Donato MM, Henriques SC, Freitas A, Ramos F. Antibiotic Residues and Zinc Concentrations in the Livers and Kidneys of Portuguese Piglets-Relationship to Antibiotic and Zinc Resistance in Intestinal Escherichia coli. Biol Trace Elem Res 2023:10.1007/s12011-023-04032-0. [PMID: 38147233 DOI: 10.1007/s12011-023-04032-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 12/18/2023] [Indexed: 12/27/2023]
Abstract
Metal ions such as zinc and copper have been used as alternatives to antibiotics, to improve animal health and growth rates in pig farming. This study aims to determine antibiotic residues and Zn concentration in piglets' livers (n = 56) and kidneys (n = 60); and to examine the correlation between the use of Zn and antibiotics, and resistance to Zn and antibiotics of Escherichia coli isolated from piglets' faeces (n = 60). Samples were collected from randomly selected healthy piglets (n = 60); antibiotic residues were quantified by ultra-high-performance-liquid-chromatography time-of-flight mass spectrometry (UHPLC-ToF-MS); Zn was quantified using flame atomic absorption spectrometry (FAAS); microbiological methods were used for E. coli isolation, antibiotic susceptibility, and Zn minimal inhibitory concentration; and Real-Time PCR was used for gene detection. The presence of antibiotic residues and Zn concentrations in the liver was found to be negatively correlated, whilst no significant difference was observed in the kidney. In E. coli isolated from piglet faeces considered to be susceptible or multi-drug-resistant, no significant difference was found between Zn concentrations in the liver and in the kidney, which appears to indicate that Zn accumulated in the liver and in the kidney does not promote resistance to antibiotics in E. coli. The isolates showed tolerance to Zn which would suggest that antibiotic resistance and phenotypic tolerance to Zn in these isolates are not related. The genes zitB and zntA associated to Zn tolerance, were predominantly found in the more resistant Zn isolates. The findings provide insights on how Zn use in pig production maintains antibiotic resistance and metal tolerance in bacteria, with implications for One Health.
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Affiliation(s)
- Olga Cardoso
- Faculdade de Farmácia, Universidade de Coimbra, CIEPQPF, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal
| | - Gabriela Assis
- Laboratório de Controlo da Alimentação Animal, Unidade Estratégica de Investigação E Serviços, Tecnologia E Segurança Alimentar, Instituto Nacional de Investigação Agrária E Veterinária, I.P, Av. da República, Quinta Do Marquês, 2780-157, Oeiras, Portugal
| | - Maria M Donato
- Faculdade de Medicina, Universidade de Coimbra, CIMAGO, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal.
| | - Sara Carolina Henriques
- Faculty of Pharmacy, Universidade de Lisboa, Research Institute for Medicines (iMed.ULisboa), 1649-003, Lisbon, Portugal
| | - Andreia Freitas
- Laboratório de Controlo da Alimentação Animal, Unidade Estratégica de Investigação E Serviços, Tecnologia E Segurança Alimentar, Instituto Nacional de Investigação Agrária E Veterinária, I.P, Av. da República, Quinta Do Marquês, 2780-157, Oeiras, Portugal
- Laboratório Nacional de Referência Para a Segurança Alimentar, Instituto Nacional de Investigação Agrária E Veterinária, I.P., Rua Dos Lágidos, Lugar da Madalena, 4485-655, Vairão, Vila Do Conde, Portugal
| | - Fernando Ramos
- REQUIMTE/LAQV, Rua Dom Manuel II, Apartado 55142, 4051-401, Porto, Portugal
- Faculdade de Farmácia, Universidade de Coimbra, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal
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Joseph OJ, Ogunleye GE, Oyinlola KA, Balogun AI, Olumeko DT. Co-occurrence of heavy metals and antibiotics resistance in bacteria isolated from metal-polluted soil. Environ Anal Health Toxicol 2023; 38:e2023024-0. [PMID: 38298043 PMCID: PMC10834071 DOI: 10.5620/eaht.2023024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/20/2023] [Indexed: 02/02/2024] Open
Abstract
The indiscriminate deposition of metal-containing substances into the environment contributes significantly to high concentrations of metals in the soil resulting in resistance to metals and consequentially to antibiotics by inherent microbes which may eventually spread to other pathogenic microbes thereby elevating disease burden due to antibiotic resistance. The study aimed at determining the co-occurrence of resistance of bacteria isolated from metal-contaminated soil to heavy metals and subsequently, antibiotics. Metal-tolerant bacteria were randomly isolated from top soils from a battery waste site using the pour plate method. Selected isolates were identified using biochemical tests, then, subjected to elevating supplemented concentrations of different metal salts at 100-500 μg/mL to determine the minimum inhibitory concentration. Isolates tolerant to minimum three metals up to 400 μg/mL were subjected to Sulfamethoxazole-trimethoprim (25 μg), Imipenem (10 μg), Amoxicillin (30 μg), Ciprofloxacin (10 μg) and Tigecycline (15 μg) and observations interpreted using the guiding principle of the Clinical and Laboratory Standards Institute. Metal concentrations in the soils exceeded permissible limits. In total, 16 isolates were selected and identified as Proteus sp. (1), Pseudomonas spp. (5), Enterobacter spp. (2), Klebsiella spp. (2), Escherichia spp. (3), Raoultella spp. (2) and Rahnella sp. (1). Thirteen (81.25 %) of all isolates showed multi-resistance to the metals and seven exhibited multidrug-resistance, with 4 (57.1 %) showing resistance to three different classes of antibiotics and 3 (42.9 %) showed resistance to four antibiotic classes. Heavy metal-tolerant bacteria isolated from this study possess co-selection potentials as they showed resistance to different metals and antibiotics classes which is a concern to public health.
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Affiliation(s)
- Oluwarotimi John Joseph
- Department of Biological Sciences, Faculty of Applied Sciences, KolaDaisi University, Ibadan, Nigeria
| | | | | | - Augustina I. Balogun
- Department of Biological Sciences, Faculty of Applied Sciences, KolaDaisi University, Ibadan, Nigeria
| | - Damilola Tolulope Olumeko
- Department of Biological Sciences, Faculty of Applied Sciences, KolaDaisi University, Ibadan, Nigeria
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Abstract
Antibiotic resistance genes predate the therapeutic uses of antibiotics. However, the current antimicrobial resistance crisis stems from our extensive use of antibiotics and the generation of environmental stressors that impose new selective pressure on microbes and drive the evolution of resistant pathogens that now threaten human health. Similar to climate change, this global threat results from human activities that change habitats and natural microbiomes, which in turn interact with human-associated ecosystems and lead to adverse impacts on human health. Human activities that alter our planet at global scales exacerbate the current resistance crisis and exemplify our central role in large-scale changes in which we are both protagonists and architects of our success but also casualties of unanticipated collateral outcomes. As cognizant participants in this ongoing planetary experiment, we are driven to understand and find strategies to curb the ongoing crises of resistance and climate change.
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Affiliation(s)
- María Mercedes Zambrano
- Corpogen Research Center, Bogotá, Colombia;
- Dirección de Investigaciones y Transferencia de Conocimiento, Universidad Central, Bogotá, Colombia
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10
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Li Y, Qin S, Cui W, Zhao F, He M, Jiang Z. Progress on the roles of zinc in sperm cryopreservation. Theriogenology 2023; 211:134-141. [PMID: 37619526 DOI: 10.1016/j.theriogenology.2023.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 06/06/2023] [Accepted: 08/17/2023] [Indexed: 08/26/2023]
Abstract
One of the effective methods for the long-term preservation of mammalian genetic resources is the cryopreservation of semen. However, a number of parameters, including diluents, the rate of freezing and thawing, cryoprotectants, etc., can easily alter the survival of frozen-thawed sperm. Numerous studies have documented the addition of a variety of zinc compounds, to the diluents used to cryopreserve sperm. The primary objective of this review is to briefly describe that adding zinc to diluents as an antioxidant significantly enhances frozen-thawed sperm quality. Second, a summary of the present understanding of zinc's molecular mechanism on semen cryopreservation is provided. Thirdly, this study addresses that nanoparticles of zinc can offer suggestions for raising cryopreservation effectiveness.
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Affiliation(s)
- Yuanyou Li
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China.
| | - Shaoyu Qin
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China.
| | - Wenfei Cui
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China.
| | - Fan Zhao
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China.
| | - Meiling He
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China.
| | - Zhongliang Jiang
- College of Animal Science and Technology, Key Laboratory of Animal Genetic, Breeding and Reproduction in Shaanxi Province, Northwestern A&F University, Yangling, Shaanxi, 712100, China.
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11
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Briassoulis G, Briassoulis P, Ilia S, Miliaraki M, Briassouli E. The Anti-Oxidative, Anti-Inflammatory, Anti-Apoptotic, and Anti-Necroptotic Role of Zinc in COVID-19 and Sepsis. Antioxidants (Basel) 2023; 12:1942. [PMID: 38001795 PMCID: PMC10669546 DOI: 10.3390/antiox12111942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 10/26/2023] [Accepted: 10/28/2023] [Indexed: 11/26/2023] Open
Abstract
Zinc is a structural component of proteins, functions as a catalytic co-factor in DNA synthesis and transcription of hundreds of enzymes, and has a regulatory role in protein-DNA interactions of zinc-finger proteins. For many years, zinc has been acknowledged for its anti-oxidative and anti-inflammatory functions. Furthermore, zinc is a potent inhibitor of caspases-3, -7, and -8, modulating the caspase-controlled apoptosis and necroptosis. In recent years, the immunomodulatory role of zinc in sepsis and COVID-19 has been investigated. Both sepsis and COVID-19 are related to various regulated cell death (RCD) pathways, including apoptosis and necroptosis. Lack of zinc may have a negative effect on many immune functions, such as oxidative burst, cytokine production, chemotaxis, degranulation, phagocytosis, and RCD. While plasma zinc concentrations decline swiftly during both sepsis and COVID-19, this reduction is primarily attributed to a redistribution process associated with the inflammatory response. In this response, hepatic metallothionein production increases in reaction to cytokine release, which is linked to inflammation, and this protein effectively captures and stores zinc in the liver. Multiple regulatory mechanisms come into play, influencing the uptake of zinc, the binding of zinc to blood albumin and red blood cells, as well as the buffering and modulation of cytosolic zinc levels. Decreased zinc levels are associated with increasing severity of organ dysfunction, prolonged hospital stay and increased mortality in septic and COVID-19 patients. Results of recent studies focusing on these topics are summarized and discussed in this narrative review. Existing evidence currently does not support pharmacological zinc supplementation in patients with sepsis or COVID-19. Complementation and repletion should follow current guidelines for micronutrients in critically ill patients. Further research investigating the pharmacological mechanism of zinc in programmed cell death caused by invasive infections and its therapeutic potential in sepsis and COVID-19 could be worthwhile.
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Affiliation(s)
- George Briassoulis
- Postgraduate Program “Emergency and Intensive Care in Children, Adolescents, and Young Adults”, School of Medicine, University of Crete, 71003 Heraklion, Greece;
| | - Panagiotis Briassoulis
- Second Department of Anesthesiology, Attikon University Hospital, School of Medicine, National and Kapodistrian University of Athens, 12462 Athens, Greece;
| | - Stavroula Ilia
- Postgraduate Program “Emergency and Intensive Care in Children, Adolescents, and Young Adults”, School of Medicine, University of Crete, 71003 Heraklion, Greece;
- Paediatric Intensive Care Unit, University Hospital, School of Medicine, University of Crete, 71110 Heraklion, Greece;
| | - Marianna Miliaraki
- Paediatric Intensive Care Unit, University Hospital, School of Medicine, University of Crete, 71110 Heraklion, Greece;
| | - Efrossini Briassouli
- Infectious Diseases Department “MAKKA”, First Department of Paediatrics, “Aghia Sophia” Children’s Hospital, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece;
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12
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James C, James SJ, Onarinde BA, Dixon RA, Williams N. A Critical Review of AMR Risks Arising as a Consequence of Using Biocides and Certain Metals in Food Animal Production. Antibiotics (Basel) 2023; 12:1569. [PMID: 37998771 PMCID: PMC10668721 DOI: 10.3390/antibiotics12111569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/15/2023] [Accepted: 10/23/2023] [Indexed: 11/25/2023] Open
Abstract
The focus of this review was to assess what evidence exists on whether, and to what extent, the use of biocides (disinfectants and sanitizers) and certain metals (used in feed and other uses) in animal production (both land and aquatic) leads to the development and spread of AMR within the food chain. A comprehensive literature search identified 3434 publications, which after screening were reduced to 154 relevant publications from which some data were extracted to address the focus of the review. The review has shown that there is some evidence that biocides and metals used in food animal production may have an impact on the development of AMR. There is clear evidence that metals used in food animal production will persist, accumulate, and may impact on the development of AMR in primary animal and food production environments for many years. There is less evidence on the persistence and impact of biocides. There is also particularly little, if any, data on the impact of biocides/metal use in aquaculture on AMR. Although it is recognized that AMR from food animal production is a risk to human health there is not sufficient evidence to undertake an assessment of the impact of biocide or metal use on this risk and further focused in-field studies are needed provide the evidence required.
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Affiliation(s)
- Christian James
- Formerly Food Refrigeration & Process Engineering Research Centre (FRPERC), Grimsby Institute, Nuns Corner, Grimsby DN34 5BQ, UK;
- National Centre for Food Manufacturing (NCFM), University of Lincoln, South Lincolnshire Food Enterprise Zone, Peppermint Way, Holbeach PE12 7FJ, UK;
| | - Stephen J. James
- Formerly Food Refrigeration & Process Engineering Research Centre (FRPERC), Grimsby Institute, Nuns Corner, Grimsby DN34 5BQ, UK;
- National Centre for Food Manufacturing (NCFM), University of Lincoln, South Lincolnshire Food Enterprise Zone, Peppermint Way, Holbeach PE12 7FJ, UK;
| | - Bukola A. Onarinde
- National Centre for Food Manufacturing (NCFM), University of Lincoln, South Lincolnshire Food Enterprise Zone, Peppermint Way, Holbeach PE12 7FJ, UK;
| | - Ronald A. Dixon
- School of Life and Environmental Sciences, University of Lincoln, Lincoln LN6 7DL, UK;
| | - Nicola Williams
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Leahurst Campus, Neston CH64 7TE, UK;
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13
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Collins A, Bowring B. Pre-Treatment with Bromelain Prevents Intestinal Dysbiosis in Pigs with Post-Weaning Diarrhea, without Increasing Antimicrobial Resistance in Escherichia coli. Animals (Basel) 2023; 13:3229. [PMID: 37893953 PMCID: PMC10603644 DOI: 10.3390/ani13203229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 10/11/2023] [Accepted: 10/15/2023] [Indexed: 10/29/2023] Open
Abstract
Pigs are especially vulnerable to intestinal pathogens and dysbiosis in the first two weeks after weaning. Infection with enterotoxigenic strains of Escherichia coli (ETEC) in combination with poor nutrition and hygiene can lead to diarrhea, poor growth and increased mortality. While neomycin and zinc oxide can prevent post-weaning diarrhea (PWD), their broad-spectrum activity also kills commensal microbiota and can lead to the emergence of heavy metal and antimicrobial resistance. Bromelain prevents attachment of F4 ETEC to intestinal enterocytes by cleaving the host receptor. In controlled environmental facilities, weaned pigs treated with either therapeutic levels of neomycin sulfate, zinc oxide, bromelain or non-treated were monitored for diarrhea, weight gain, feed intake, feed efficiency, excretion of F4 ETEC, changes to their intestinal microbiomes and antimicrobial resistance in E. coli. The treatment effects were evaluated at weaning, during two weeks of treatment and for three weeks after treatments ceased. Minimal clinical signs of PWD were observed, except in zinc-treated pigs post treatment. Intestinal dysbiosis was observed in response to diarrhea and in pigs treated with both neomycin and zinc. Antimicrobial resistance increased in commensal E. coli isolated from neomycin- and zinc-treated pigs. In contrast, bromelain controlled PWD and prevented intestinal dysbiosis without inducing antimicrobial resistance.
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Affiliation(s)
- Alison Collins
- New South Wales Department of Primary Industries, Elizabeth Macarthur Agricultural Institute, Menangle, NSW 2568, Australia
| | - Bethany Bowring
- Centre for Infectious Diseases and Microbiology, the Westmead Institute for Medical Research, Sydney, NSW 2145, Australia;
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14
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Adekolurejo OO, McDermott K, Greathead HMR, Miller HM, Mackie AR, Boesch C. Effect of Red-Beetroot-Supplemented Diet on Gut Microbiota Composition and Metabolite Profile of Weaned Pigs-A Pilot Study. Animals (Basel) 2023; 13:2196. [PMID: 37443994 DOI: 10.3390/ani13132196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/20/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
Red beetroot is a well-recognized and established source of bioactive compounds (e.g., betalains and polyphenols) with anti-inflammatory and antimicrobial properties. It is proposed as a potential alternative to zinc oxide with a focus on gut microbiota modulation and metabolite production. In this study, weaned pigs aged 28 days were fed either a control diet, a diet supplemented with zinc oxide (3000 mg/kg), or 2% and 4% pulverized whole red beetroot (CON, ZNO, RB2, and RB4; respectively) for 14 days. After pigs were euthanized, blood and digesta samples were collected for microbial composition and metabolite analyses. The results showed that the diet supplemented with red beetroot at 2% improved the gut microbial richness relative to other diets but marginally influenced the cecal microbial diversity compared to a zinc-oxide-supplemented diet. A further increase in red beetroot levels (4%-RB4) led to loss in cecal diversity and decreased short chain fatty acids and secondary bile acid concentrations. Also, an increased Proteobacteria abundance, presumably due to increased lactate/lactic-acid-producing bacteria was observed. In summary, red beetroot contains several components conceived to improve the gut microbiota and metabolite output of weaned pigs. Future studies investigating individual components of red beetroot will better elucidate their contributions to gut microbiota modulation and pig health.
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Affiliation(s)
- Opeyemi O Adekolurejo
- School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK
- Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Katie McDermott
- Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | | | - Helen M Miller
- Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Alan R Mackie
- School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK
| | - Christine Boesch
- School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK
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15
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Arnaud EA, Gardiner GE, Lawlor PG. Selected Nutrition and Management Strategies in Suckling Pigs to Improve Post-Weaning Outcomes. Animals (Basel) 2023; 13:1998. [PMID: 37370508 DOI: 10.3390/ani13121998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Weaning is a critical period in a pig's life. Piglets are confronted with abrupt changes to their physical and social environment, as well as management and nutritional changes. Weaning has always been associated with a growth check and is frequently accompanied by post-weaning diarrhoea in piglets. However, rapid increases in litter size in the last decade have increased within-litter piglet weight variation, with piglets now generally lighter at weaning, making the challenges associated with weaning even greater. Many interventions can be employed during the suckling period to ease the weaning transition for piglets. Pre-weaning strategies such as supervised farrowing (assistance with suckling and oxytocin provision), the provision of pain relief to sows around farrowing, split-suckling, early oral supplementation with glucose, bovine colostrum, faecal microbiota transplantation, feed additives and solid and liquid creep feeding (milk and liquid feed) have all been investigated. The objective of these strategies is to stimulate earlier maturation of the digestive tract, improve immunity, reduce latency to the first feed post-weaning and increase early post-weaning feed intake and growth. This review focuses in particular on: (1) pain relief provision to sows around farrowing, (2)split-suckling of piglets, (3) pre-weaning provision of supplementary milk and/or liquid feed, (4) other strategies to stimulate earlier enzyme production (e.g., enzyme supplementation), (5) other nutritional strategies to promote improved gut structure and function (e.g., L-glutamine supplementation), and (6) other strategies to modulate gut microbiota (e.g., probiotics and prebiotics). Correctly implementing these strategies can, not only increase post-weaning growth and reduce mortality, but also maximise lifetime growth in pigs.
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Affiliation(s)
- Elisa A Arnaud
- Teagasc Pig Development Department, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, P61 C996 County Cork, Ireland
- Eco-Innovation Research Centre, Department of Science, Waterford Campus, South East Technological University, X91 K0EK Waterford, Ireland
| | - Gillian E Gardiner
- Eco-Innovation Research Centre, Department of Science, Waterford Campus, South East Technological University, X91 K0EK Waterford, Ireland
| | - Peadar G Lawlor
- Teagasc Pig Development Department, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, P61 C996 County Cork, Ireland
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16
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Sodhi KK, Singh CK, Kumar M, Singh DK. Whole-genome sequencing of Alcaligenes sp. strain MMA: insight into the antibiotic and heavy metal resistant genes. Front Pharmacol 2023; 14:1144561. [PMID: 37251338 PMCID: PMC10213877 DOI: 10.3389/fphar.2023.1144561] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 05/02/2023] [Indexed: 05/31/2023] Open
Abstract
Introduction: A wide range of pollutants, including the likes of xenobiotics, heavy metals, and antibiotics, are characteristic of marine ecosystems. The ability of the bacteria to flourish under high metal stress favors the selection of antibiotic resistance in aquatic environments. Increased use and misuse of antibiotics in medicine, agriculture, and veterinary have posed a grave concern over antimicrobial resistance. The exposure to these heavy metals and antibiotics in the bacteria drives the evolution of antibiotic and heavy metal resistance genes. In the earlier study by the author Alcaligenes sp. MMA was involved in the removal of heavy metals and antibiotics. Alcaligenes display diverse bioremediation capabilities but remain unexplored at the level of the genome. Methods: To shed light on its genome, the Alcaligenes sp. strain MMA, was sequenced using Illumina Nova Seq sequencer, which resulted in a draft genome of 3.9 Mb. The genome annotation was done using Rapid annotation using subsystem technology (RAST). Given the spread of antimicrobial resistance and the generation of multi-drug resistant pathogens (MDR), the strain MMA was checked for potential antibiotic and heavy metal resistance genes Further, we checked for the presence of biosynthetic gene clusters in the draft genome. Results: Alcaligenes sp. strain MMA, was sequenced using Illumina Nova Seq sequencer, which resulted in a draft genome of 3.9 Mb. The RAST analysis revealed the presence of 3685 protein-coding genes, involved in the removal of antibiotics and heavy metals. Multiple metal-resistant genes and genes conferring resistance to tetracycline, beta-lactams, and fluoroquinolones were present in the draft genome. Many types of BGCs were predicted, such as siderophore. The secondary metabolites of fungi and bacteria are a rich source of novel bioactive compounds which have the potential to in new drug candidates. Discussion: The results of this study provide information on the strain MMA genome and are valuable for the researcher in further exploitation of the strain MMA for bioremediation. Moreover, whole-genome sequencing has become a useful tool to monitor the spread of antibiotic resistance, a global threat to healthcare.
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Affiliation(s)
| | | | - Mohit Kumar
- Hindu College, University of Delhi, Delhi, India
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17
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René R, Sebastian V, Marlies D, Lukas S, Annemarie K, Andrea L. Risk factors associated with post-weaning diarrhoea in Austrian piglet-producing farms. Porcine Health Manag 2023; 9:20. [PMID: 37170128 PMCID: PMC10176918 DOI: 10.1186/s40813-023-00315-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 04/19/2023] [Indexed: 05/13/2023] Open
Abstract
Post-weaning diarrhoea (PWD) is a frequent, multifactorial disease of piglets leading to increased mortality rates and high economic losses. Due to the emergence of multi-resistant Escherichia coli isolates and the ban of zinc oxide (ZnO) in the EU since June 2022, alternative measures to prevent PWD are urgently needed. While an abundance of feed supplements is described to prevent PWD, there are hardly any studies reflecting the current situation of PWD in the field. Thus, we aimed to identify differences in management practices, housing and feeding strategies between farms with PWD and farms without PWD. Data were personally collected using a semi-structured questionnaire in 257 Austrian piglet-producing farms. Farms with PWD in more than 10% of all weaned groups within twelve months prior to data collection were defined as case farms (n = 101), while the remaining 136 farms were defined as control farms. Data from 237 farms and 69 explanatory variables were analysed via penalized binary logistic regression using elastic-net in 100 different splits into randomly selected training and test datasets (80:20). Treatment with ZnO and/or colistin (136 farms) was negatively associated with PWD in all splits and had the biggest estimated absolute log odds ratio out of all tested variables. Implementation of an all-in/all-out system in the nursery units and administration of probiotics or horseradish also had preventive effects in most splits (≥ 97%). A higher number of feeding phases for piglets within the first seven weeks of life and housing on fully slatted floors was associated negatively with the occurrence of PWD as well in > 95% of all splits. PWD was more likely to occur on farms having problems with neonatal diarrhoea or postpartum dysgalactia syndrome. While our data demonstrate that treatment with ZnO or colistin had the biggest statistical effect on PWD, we were able to identify other preventive measures like supplementation with probiotics or horseradish. Since implementation of all-in/all-out measures and fully slatted floors were also negatively associated with the occurrence of PWD on visited farms, we assume that reduction of bacterial load by the implementation of simple hygiene measures are still crucial to prevent PWD.
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Affiliation(s)
- Renzhammer René
- Department for Farm Animals and Veterinary Public Health, University Clinic for Swine, University of Veterinary Medicine, Veterinärplatz 1, Vienna, 1210, Austria.
| | - Vetter Sebastian
- Unit of Veterinary Public Health and Epidemiology, Institute of Food Safety, Food Technology and Veterinary Public Health, University of Veterinary Medicine, Veterinärplatz 1, Vienna, 1210, Austria
| | - Dolezal Marlies
- Platform for Bioinformatics and Biostatistics, Department of Biomedical Sciences, University of Veterinary Medicine, Veterinärplatz 1, Vienna, 1210, Austria
| | - Schwarz Lukas
- Department for Farm Animals and Veterinary Public Health, University Clinic for Swine, University of Veterinary Medicine, Veterinärplatz 1, Vienna, 1210, Austria
| | - Käsbohrer Annemarie
- Unit of Veterinary Public Health and Epidemiology, Institute of Food Safety, Food Technology and Veterinary Public Health, University of Veterinary Medicine, Veterinärplatz 1, Vienna, 1210, Austria
| | - Ladinig Andrea
- Department for Farm Animals and Veterinary Public Health, University Clinic for Swine, University of Veterinary Medicine, Veterinärplatz 1, Vienna, 1210, Austria
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18
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Ekhlas D, Sanjuán JMO, Manzanilla EG, Leonard FC, Argüello H, Burgess CM. Comparison of antimicrobial resistant Escherichia coli isolated from Irish commercial pig farms with and without zinc oxide and antimicrobial usage. Gut Pathog 2023; 15:8. [PMID: 36829209 PMCID: PMC9951511 DOI: 10.1186/s13099-023-00534-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 02/09/2023] [Indexed: 02/26/2023] Open
Abstract
BACKGROUND The prophylactic use of antimicrobials and zinc oxide (ZnO) in pig production was prohibited by the European Union in 2022 due to potential associations between antimicrobial and heavy metal usage with antimicrobial resistance (AMR) and concerns regarding environmental pollution. However, the effects of their usage on the bacterial AMR profiles on commercial pig farms are still not fully understood and previous studies examining the effect of ZnO have reported contrasting findings. The objective of this study was to examine the effects of antimicrobial and ZnO usage on AMR on commercial pig farms. Faecal and environmental samples were taken on 10 Irish commercial farms, of which 5 farms regularly used ZnO and antimicrobials (amoxicillin or sulphadiazine-trimethoprim) for the prevention of disease. The other 5 farms did not use ZnO or any other form of prophylaxis. Escherichia coli numbers were quantified from all samples using non-supplemented and supplemented Tryptone Bile X-glucuronide agar. RESULTS In total 351 isolates were phenotypically analysed, and the genomes of 44 AmpC/ESBL-producing E. coli isolates from 4 farms were characterised using whole-genome sequencing. Phenotypic analysis suggested higher numbers of multi-drug resistant (MDR) E. coli isolates on farms using prophylaxis. Furthermore, farms using prophylaxis were associated with higher numbers of isolates resistant to apramycin, trimethoprim, tetracycline, streptomycin, and chloramphenicol, while resistance to ciprofloxacin was more associated with farms not using any prophylaxis. Thirty-four of the 44 AmpC/ESBL-producing E. coli strains harboured the blaCTX-M-1 resistance gene and were multi drug resistant (MDR). Moreover, network analysis of plasmids and analysis of integrons showed that antimicrobial and biocide resistance genes were frequently co-located on mobile genetic elements, indicating the possibility for co-selection during antimicrobial or biocide usage as a contributor to AMR occurrence and persistence on farms. CONCLUSIONS The results of this study showed evidence that antimicrobial and ZnO treatment of pigs post-weaning can favour the selection and development of AMR and MDR E. coli. Co-location of resistance genes on mobile genetic elements was observed. This study demonstrated the usefulness of phenotypic and genotypic detection of antimicrobial resistance by combining sequencing and microbiological methods.
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Affiliation(s)
- Daniel Ekhlas
- grid.6435.40000 0001 1512 9569Food Safety Department, Teagasc Food Research Centre, Ashtown, Dublin, Ireland ,grid.7886.10000 0001 0768 2743School of Veterinary Medicine, University College Dublin, Dublin, Ireland ,grid.6435.40000 0001 1512 9569Pig Development Department, Teagasc Moorepark, Fermoy, Co. Cork Ireland
| | - Juan M. Ortiz Sanjuán
- grid.6435.40000 0001 1512 9569Pig Development Department, Teagasc Moorepark, Fermoy, Co. Cork Ireland ,grid.411901.c0000 0001 2183 9102Grupo de Genómica Y Mejora Animal, Departamento de Genética, Facultad de Veterinaria, Universidad de Córdoba, Córdoba, Spain
| | - Edgar G. Manzanilla
- grid.7886.10000 0001 0768 2743School of Veterinary Medicine, University College Dublin, Dublin, Ireland ,grid.6435.40000 0001 1512 9569Pig Development Department, Teagasc Moorepark, Fermoy, Co. Cork Ireland
| | - Finola C. Leonard
- grid.7886.10000 0001 0768 2743School of Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - Héctor Argüello
- grid.4807.b0000 0001 2187 3167Animal Health Department, Veterinary Faculty, Universidad de León, León, Spain
| | - Catherine M. Burgess
- grid.6435.40000 0001 1512 9569Food Safety Department, Teagasc Food Research Centre, Ashtown, Dublin, Ireland
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Chang MR, Rusanov DA, Arakelyan J, Alshehri M, Asaturova AV, Kireeva GS, Babak MV, Ang WH. Targeting emerging cancer hallmarks by transition metal complexes: Cancer stem cells and tumor microbiome. Part I. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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20
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Evaluation on the Growth Performance, Nutrient Digestibility, Faecal Microbiota, Noxious Gas Emission, and Faecal Score on Weaning Pigs Supplement with and without Probiotics Complex Supplementation in Different Level of Zinc Oxide. Animals (Basel) 2023; 13:ani13030381. [PMID: 36766270 PMCID: PMC9913860 DOI: 10.3390/ani13030381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 01/04/2023] [Accepted: 01/19/2023] [Indexed: 01/24/2023] Open
Abstract
A total of 200 26-day-old crossbred weaning piglets ((Yorkshire × Landrace) × Duroc; 6.55 ± 0.62 kg) were used in a 6-week experiment to evaluate the effects of adding probiotics complex supplementation (Syner-ZymeF10) with high and low ZnO diets on the performance of weaning pigs in 42 days. Pigs were randomly allotted to a 2 × 2 factorial arrangement and they were supplemented with two concentration level of ZnO with 3000 ppm and 300 ppm and probiotics complex supplementation with 0 and 0.1%. There were ten replicate pens per treatment with five pigs per pen (two gilts and three barrows). Pigs fed diets with 3000 ppm ZnO had a higher BW during the overall period and ADG during d 8-21, d 22-42, and overall period than pigs receiving 300 ppm ZnO diets (p < 0.05), as well as a G: F which tended to increase on d 8-21 and overall period (p < 0.1) and decreased tendency on faecal gas emission of methyl mercaptans and acetic acid concentration (p < 0.1). Dietary probiotics complex supplementation had decreased the E. coli count (p < 0.05) and tended to increase the Lactobacillus count (p < 0.1). Dietary probiotics complex supplementation and different level of ZnO supplementation had no significant effect on the nutrition digestibility and faecal score (p > 0.05). In conclusion, probiotic supplementation reduced the fecal E. coli counts and tended to improve Lactobacillus counts. There were no interactive effects between ZnO and probiotic complex supplementation on all the measured parameters.
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21
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Piergiacomo F, Brusetti L, Pagani L. Understanding the Interplay between Antimicrobial Resistance, Microplastics and Xenobiotic Contaminants: A Leap towards One Health? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 20:42. [PMID: 36612363 PMCID: PMC9819104 DOI: 10.3390/ijerph20010042] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
According to the World Health Organization, the two major public health threats in the twenty-first century are antibiotic-resistant bacteria and antibiotic-resistant genes. The reason for the global prevalence and the constant increase of antibiotic-resistant bacteria is owed to the steady rise in overall antimicrobial consumption in several medical, domestic, agricultural, industrial, and veterinary applications, with consequent environmental release. These antibiotic residues may directly contaminate terrestrial and aquatic environments in which antibiotic-resistance genes are also present. Reports suggest that metal contamination is one of the main drivers of antimicrobial resistance (AMR). Moreover, the abundance of antibiotic-resistance genes is directly connected to the predominance of metal concentrations in the environment. In addition, microplastics have become a threat as emerging contaminants because of their ubiquitous presence, bio-inertness, toughness, danger to aquatic life, and human health implications. In the environment, microplastics and AMR are interconnected through biofilms, where genetic information (e.g., ARGs) is horizontally transferred between bacteria. From this perspective, we tried to summarize what is currently known on this topic and to propose a more effective One Health policy to tackle these threats.
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Affiliation(s)
- Federica Piergiacomo
- Faculty of Science and Technology, Free University of Bolzano-Bozen, Piazza Università 1, 39100 Bolzano, Italy
| | - Lorenzo Brusetti
- Faculty of Science and Technology, Free University of Bolzano-Bozen, Piazza Università 1, 39100 Bolzano, Italy
| | - Leonardo Pagani
- Antimicrobial Stewardship Project, Provincial Hospital of Bolzano (SABES-ASDAA), Lehrkrankenhaus der Paracelsus Medizinischen Privatuniversität, 39100 Bolzano, Italy
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22
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Shurson GC, Urriola PE, Hung YT. Too Much of a Good Thing: Rethinking Feed Formulation and Feeding Practices for Zinc in Swine Diets to Achieve One Health and Environmental Sustainability. Animals (Basel) 2022; 12:ani12233374. [PMID: 36496895 PMCID: PMC9739216 DOI: 10.3390/ani12233374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 11/26/2022] [Accepted: 11/30/2022] [Indexed: 12/03/2022] Open
Abstract
The objectives of this review were to summarize current knowledge of Zn in swine nutrition, environmental concerns, potential contribution to antimicrobial resistance, and explore the use of alternative feeding strategies to reduce Zn excretion in manure while capturing improvements in productivity. Zinc is a required nutrient for pigs but is commonly supplemented at concentrations that greatly exceed estimated requirements. Feeding pharmacological concentrations of Zn from ZnO to pigs for 1 to 2 weeks post-weaning reduces post-weaning diarrhea and improves growth performance. Feeding elevated dietary levels of Zn to sows during the last 30 days of gestation can reduce the incidence of low-birth-weight pigs and pre-weaning mortality. Most of the dietary Zn consumed by pigs is not retained in the body and is subsequently excreted in manure, which led several countries to impose regulations restricting dietary Zn concentrations to reduce environmental impacts. Although restricting Zn supplementation in swine diets is a reasonable approach for reducing environmental pollution, it does not allow capturing health and productivity benefits from strategic use of elevated dietary Zn concentrations. Therefore, we propose feeding strategies that allow strategic use of high dietary concentrations of Zn while also reducing Zn excretion in manure compared with current feeding practices.
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Affiliation(s)
- Gerald C. Shurson
- Department of Animal Science, University of Minnesota, St. Paul, MN 55108, USA
- Correspondence:
| | - Pedro E. Urriola
- Department of Animal Science, University of Minnesota, St. Paul, MN 55108, USA
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Rolbiecki D, Korzeniewska E, Czatzkowska M, Harnisz M. The Impact of Chlorine Disinfection of Hospital Wastewater on Clonal Similarity and ESBL-Production in Selected Bacteria of the Family Enterobacteriaceae. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13868. [PMID: 36360746 PMCID: PMC9655713 DOI: 10.3390/ijerph192113868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/21/2022] [Accepted: 10/23/2022] [Indexed: 06/16/2023]
Abstract
Hospitals are regarded as ecological niches of antibiotic-resistant bacteria (ARB). ARB can spread outside the hospital environment via hospital wastewater (HWW). Therefore, HWW is often disinfected in local stations to minimize that risk. Chlorine-based treatment is the most popular method of HWW disinfection around the world, however, recent research has suggested that it can contribute to the spread of antimicrobial resistance (AMR). The aim of this study is to determine the impact of HWW disinfection on the clonal similarity of Enterobacteriaceae species and their ability to produce extended-spectrum beta-lactamases (ESBLs). The study was conducted in a hospital with a local chlorine-based disinfection station. Samples of wastewater before disinfection and samples of disinfected wastewater, collected in four research seasons, were analyzed. Bacteria potentially belonging to the Enterobacteriaceae family were isolated from HWW. The Enterobacterial Repetitive Intergenic Consensus Polymerase Chain Reaction (ERIC-PCR) method was used to generate DNA fingerprints of all bacterial isolates. The isolates were phenotypically tested for the production of ESBLs. Antibiotic resistance genes (blaSHV, blaTEM, and blaOXA, blaCTX-M-1-group, blaCTX-M-2-group, blaCTX-9-group and blaCTX-M-8/25-group) were detected by PCR in strains with confirmed phenotypic ability to produce ESBLs. The ESBL+ isolates were identified by the sequencing of 16S rDNA. In the present study, the same bacterial clones were isolated from HWW before and after disinfection and HWW was sampled in different seasons. Genetic and phenotypic variations were observed in bacterial clones. ESBL+ strains were isolated significantly more often from disinfected than from non-disinfected HWW. The blaOXA gene was significantly more prevalent in isolates from disinfected than non-disinfected HWW. Enterobacter hormaechei and Klebsiella pneumoniae were the dominant species in ESBL+ strains isolated from both sampling sites. The results of this study indicate that chlorine-based disinfection promotes the survival of ESBL-producing bacteria and/or the transmission of genetic determinants of antimicrobial resistance. As a result, chlorination increases the proportion of ESBL-producing Enterobacteriaceae in disinfected wastewater. Consequently, chlorine-based disinfection practices may pose a risk to the environment and public health by accelerating the spread of antimicrobial resistance.
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24
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Canibe N, Højberg O, Kongsted H, Vodolazska D, Lauridsen C, Nielsen TS, Schönherz AA. Review on Preventive Measures to Reduce Post-Weaning Diarrhoea in Piglets. Animals (Basel) 2022; 12:2585. [PMID: 36230326 PMCID: PMC9558551 DOI: 10.3390/ani12192585] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/30/2022] [Accepted: 08/30/2022] [Indexed: 02/08/2023] Open
Abstract
In many countries, medical levels of zinc (typically as zinc oxide) are added to piglet diets in the first two weeks post-weaning to prevent the development of post-weaning diarrhoea (PWD). However, high levels of zinc constitute an environmental polluting agent, and may contribute to the development and/or maintenance of antimicrobial resistance (AMR) among bacteria. Consequently, the EU banned administering medical levels of zinc in pig diets as of June 2022. However, this may result in an increased use of antibiotic therapeutics to combat PWD and thereby an increased risk of further AMR development. The search for alternative measures against PWD with a minimum use of antibiotics and in the absence of medical levels of zinc has therefore been intensified over recent years, and feed-related measures, including feed ingredients, feed additives, and feeding strategies, are being intensively investigated. Furthermore, management strategies have been developed and are undoubtedly relevant; however, these will not be addressed in this review. Here, feed measures (and vaccines) are addressed, these being probiotics, prebiotics, synbiotics, postbiotics, proteobiotics, plants and plant extracts (in particular essential oils and tannins), macroalgae (particularly macroalgae-derived polysaccharides), dietary fibre, antimicrobial peptides, specific amino acids, dietary fatty acids, milk replacers, milk components, creep feed, vaccines, bacteriophages, and single-domain antibodies (nanobodies). The list covers measures with a rather long history and others that require significant development before their eventual use can be extended. To assess the potential of feed-related measures in combating PWD, the literature reviewed here has focused on studies reporting parameters of PWD (i.e., faeces score and/or faeces dry matter content during the first two weeks post-weaning). Although the impact on PWD (or related parameters) of the investigated measures may often be inconsistent, many studies do report positive effects. However, several studies have shown that control pigs do not suffer from diarrhoea, making it difficult to evaluate the biological and practical relevance of these improvements. From the reviewed literature, it is not possible to rank the efficacy of the various measures, and the efficacy most probably depends on a range of factors related to animal genetics and health status, additive doses used, composition of the feed, etc. We conclude that a combination of various measures is probably most recommendable in most situations. However, in this respect, it should be considered that combining strategies may lead to additive (e.g., synbiotics), synergistic (e.g., plant materials), or antagonistic (e.g., algae compounds) effects, requiring detailed knowledge on the modes of action in order to design effective strategies.
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Affiliation(s)
- Nuria Canibe
- Department of Animal and Veterinary Sciences, Aarhus University, Blichers Allé 20, 8830 Tjele, Denmark
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Sudan S, Zhan X, Li J. A Novel Probiotic Bacillus subtilis Strain Confers Cytoprotection to Host Pig Intestinal Epithelial Cells during Enterotoxic Escherichia coli Infection. Microbiol Spectr 2022; 10:e0125721. [PMID: 35736372 PMCID: PMC9430607 DOI: 10.1128/spectrum.01257-21] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 05/26/2022] [Indexed: 01/13/2023] Open
Abstract
Enteric infections caused by enterotoxic Escherichia coli (ETEC) negatively impact the growth performance of piglets during weaning, resulting in significant economic losses for the producers. With the ban on antibiotic usage in livestock production, probiotics have gained a lot of attention as a potential alternative. However, strain specificity and limited knowledge on the host-specific targets limit their efficacy in preventing ETEC-related postweaning enteric infections. We recently isolated and characterized a novel probiotic Bacillus subtilis bacterium (CP9) that demonstrated antimicrobial activity. Here, we report anti-ETEC properties of CP9 and its impact on metabolic activity of swine intestinal epithelial (IPEC-J2) cells. Our results showed that pre- or coincubation with CP9 protected IPEC-J2 cells from ETEC-induced cytotoxicity. CP9 significantly attenuated ETEC-induced inflammatory response by reducing ETEC-induced nitric oxide production and relative mRNA expression of the Toll-like receptors (TLRs; TLR2, TLR4, and TLR9), proinflammatory tumor necrosis factor alpha, interleukins (ILs; IL-6 and IL-8), augmenting anti-inflammatory granulocyte-macrophage colony-stimulating factor and host defense peptide mucin 1 (MUC1) mRNA levels. We also show that CP9 significantly (P < 0.05) reduced caspase-3 activity, reinstated cell proliferation and increased relative expression of tight junction genes, claudin-1, occludin, and zona occludens-1 in ETEC-infected cells. Finally, metabolomic analysis revealed that CP9 exposure induced metabolic modulation in IPEC J2 cells with the greatest impact seen in alanine, aspartate, and glutamate metabolism; pyrimidine metabolism; nicotinate and nicotinamide metabolism; glutathione metabolism; the citrate cycle (TCA cycle); and arginine and proline metabolism. Our study shows that CP9 incubation attenuated ETEC-induced cytotoxicity in IPEC-J2 cells and offers insight into potential application of this probiotic for ETEC infection control. IMPORTANCE ETEC remains one of the leading causes of postweaning diarrhea and mortality in swine production. Due to the rising concerns with the antibiotic use in livestock, alternative interventions need to be developed. In this study, we analyzed the cytoprotective effect of a novel probiotic strain in combating ETEC infection in swine intestinal cells, along with assessing its mechanism of action. To our knowledge, this is also the first study to analyze the metabolic impact of a probiotic on intestinal cells. Results from this study should provide effective cues in developing a probiotic intervention for ameliorating ETEC infection and improving overall gut health in swine production.
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Affiliation(s)
- Sudhanshu Sudan
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada
| | - Xiaoshu Zhan
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada
| | - Julang Li
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada
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Kim K, Song M, Liu Y, Ji P. Enterotoxigenic Escherichia coli infection of weaned pigs: Intestinal challenges and nutritional intervention to enhance disease resistance. Front Immunol 2022; 13:885253. [PMID: 35990617 PMCID: PMC9389069 DOI: 10.3389/fimmu.2022.885253] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 07/19/2022] [Indexed: 11/13/2022] Open
Abstract
Enterotoxigenic Escherichia coli (ETEC) infection induced post-weaning diarrhea is one of the leading causes of morbidity and mortality in newly weaned pigs and one of the significant drivers for antimicrobial use in swine production. ETEC attachment to the small intestine initiates ETEC colonization and infection. The secretion of enterotoxins further disrupts intestinal barrier function and induces intestinal inflammation in weaned pigs. ETEC infection can also aggravate the intestinal microbiota dysbiosis due to weaning stress and increase the susceptibility of weaned pigs to other enteric infectious diseases, which may result in diarrhea or sudden death. Therefore, the amount of antimicrobial drugs for medical treatment purposes in major food-producing animal species is still significant. The alternative practices that may help reduce the reliance on such antimicrobial drugs and address animal health requirements are needed. Nutritional intervention in order to enhance intestinal health and the overall performance of weaned pigs is one of the most powerful practices in the antibiotic-free production system. This review summarizes the utilization of several categories of feed additives or supplements, such as direct-fed microbials, prebiotics, phytochemicals, lysozyme, and micro minerals in newly weaned pigs. The current understanding of these candidates on intestinal health and disease resistance of pigs under ETEC infection are particularly discussed, which may inspire more research on the development of alternative practices to support food-producing animals.
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Affiliation(s)
- Kwangwook Kim
- Department of Animal Science, University of California, Davis, Davis, CA, United States
| | - Minho Song
- Division of Animal and Dairy Science, Chungnam National University, Daejeon, South Korea
| | - Yanhong Liu
- Department of Animal Science, University of California, Davis, Davis, CA, United States
- *Correspondence: Yanhong Liu, ; Peng Ji,
| | - Peng Ji
- Department of Nutrition, University of California, Davis, Davis, CA, United States
- *Correspondence: Yanhong Liu, ; Peng Ji,
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Determination of the Optimal Level of Dietary Zinc for Newly Weaned Pigs: A Dose-Response Study. Animals (Basel) 2022; 12:ani12121552. [PMID: 35739888 PMCID: PMC9219510 DOI: 10.3390/ani12121552] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/09/2022] [Accepted: 06/13/2022] [Indexed: 12/28/2022] Open
Abstract
Simple Summary Piglets have a very low feed intake immediately after weaning. We hypothesise that the EU-legislated maximum dietary zinc concentration (150 mg zinc/kg diet) will increase the risk of zinc deficiency after weaning. Zinc deficiency includes symptoms such as impaired growth and increased risk of diarrhoea. However, a high dietary zinc concentration has an antimicrobial effect on the bacteria and increases the risk of antimicrobial resistance. The findings of this study show that the dietary zinc level had a quadratic effect on growth, with a turning point at an approximately 1400 mg zinc per kg diet. The risk of diarrhoea increased up to 60% for pigs that had a blood zinc concentration which decreased after weaning. Maintaining the blood zinc concentration seven days after weaning required up to 1121 mg zinc per kg diet. There was no evidence for an antimicrobial effect when feeding pigs a diet with up to 1601 mg zinc per kg. Abstract One hundred and eighty individually housed piglets with an initial body weight of 7.63 ± 0.98 kg (at 28 days of age) were fed a diet containing either 153, 493, 1022, 1601, 2052 or 2407 mg zinc/kg (added Zn as zinc oxide; ZnO) from day 0–21 post weaning to determine the optimal level of Zn for weaned piglets. Body weight, feed intake and faecal scores were recorded, and blood and faecal samples were collected. Dietary Zn content quadratically affected both feed intake and gain in the first two weeks, with an approximately 1400 mg Zn/kg diet and a Zn intake of 400 mg/day as the optimal levels. The relative risk of diarrhoea increased up to 60% at day 7 and 14 if serum Zn status dropped below the weaning level (767 µg/L), and maintain the weaning serum Zn status required approximately 1100 mg Zn/kg (166 mg Zn/day) during week 1. Blood markers of intestinal integrity (D-lactate and diamine oxidase) were unaffected by dietary Zn, and dietary Zn levels of 1022 and 1601 mg/kg did not affect the faecal numbers of total bacteria, Lactobacilli and E. Coli bacteria compared to 153 mg Zn/kg. These results indicate that the requirement for Zn in newly weaned piglets may be substantially higher than currently assumed.
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Patience JF, Ramirez A. Invited review: strategic adoption of antibiotic-free pork production: the importance of a holistic approach. Transl Anim Sci 2022; 6:txac063. [PMID: 35854972 PMCID: PMC9278845 DOI: 10.1093/tas/txac063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 05/13/2022] [Indexed: 02/07/2023] Open
Abstract
The discovery of the use of antibiotics to enhance growth in the 1950s proved to be one of the most dramatic and influential in the history of animal agriculture. Antibiotics have served animal agriculture, as well as human and animal medicine, well for more than seven decades, but emerging from this tremendous success has been the phenomenon of antimicrobial resistance. Consequently, human medicine and animal agriculture are being called upon, through legislation and/or marketplace demands, to reduce or eliminate antibiotics as growth promotants and even as therapeutics. As explained in this review, adoption of antibiotic-free (ABF) pork production would represent a sea change. By identifying key areas requiring attention, the clear message of this review is that success with ABF production, also referred to as "no antibiotics ever," demands a multifaceted and multidisciplinary approach. Too frequently, the topic has been approached in a piecemeal fashion by considering only one aspect of production, such as the use of certain feed additives or the adjustment in health management. Based on the literature and on practical experience, a more holistic approach is essential. It will require the modification of diet formulations to not only provide essential nutrients and energy, but to also maximize the effectiveness of normal immunological and physiological capabilities that support good health. It must also include the selection of effective non-antibiotic feed additives along with functional ingredients that have been shown to improve the utility and architecture of the gastrointestinal tract, to improve the microbiome, and to support the immune system. This holistic approach will require refining animal management strategies, including selection for more robust genetics, greater focus on care during the particularly sensitive perinatal and post-weaning periods, and practices that minimize social and environmental stressors. A clear strategy is needed to reduce pathogen load in the barn, such as greater emphasis on hygiene and biosecurity, adoption of a strategic vaccine program and the universal adoption of all-in-all-out housing. Of course, overall health management of the herd, as well as the details of animal flows, cannot be ignored. These management areas will support the basic biology of the pig in avoiding or, where necessary, overcoming pathogen challenges without the need for antibiotics, or at least with reduced usage.
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Affiliation(s)
| | - Alejandro Ramirez
- College of Veterinary Medicine, University of Arizona, Oro Valley, AZ 85737, USA
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29
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Xu T, Ma X, Zhou X, Qian M, Yang Z, Cao P, Han X. Coated tannin supplementation improves growth performance, nutrients digestibility, and intestinal function in weaned piglets. J Anim Sci 2022; 100:skac088. [PMID: 35298652 PMCID: PMC9109020 DOI: 10.1093/jas/skac088] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/15/2022] [Indexed: 11/13/2022] Open
Abstract
To explore the effect of coated tannin (CT) on the growth performance, nutrients digestibility, and intestinal function in weaned piglets, a total of 180 piglets Duroc × Landrace × Yorkshire (28 d old) weighing about 8.6 kg were randomly allotted to three treatments: 1) Con: basal diet (contains ZnSO4); 2) Tan: basal diet + 0.15% CT; and 3) ZnO: basal diet + ZnO (Zn content is 1,600 mg/kg). The results showed that 0.15% CT could highly increase the average daily gain and average daily feed intake of weaned piglets compared with the control group, especially decreasing diarrhea incidence significantly (P < 0.05). Compared with the control group, crude protein apparent digestibility and digestive enzyme activity of the piglets fed with 0.15% CT were enhanced obviously (P < 0.05). Meanwhile, the intestinal villi and microvilli arranged more densely, while the content of serum diamine oxidase was decreased, and the protein expressions of zonula occludens-1 (ZO-1) and claudin-1 were significantly upregulated (P < 0.05). In addition, CT altered the structure of intestinal microbiota and augmented some butyrate-producing bacteria such as Ruminococcaceae and Megasphaera. PICRUSt (Phylogenetic Investigation of Communities by Reconstruction of Unobserved States) analysis also showed that the abundances of pathways related to butyrate metabolism and tryptophan metabolism were increased; however, the function of lipopolysaccharide biosynthesis proteins was significantly decreased. The results demonstrated that 0.15% CT could improve growth performance, digestibility, and intestinal function of weaned piglets, and it had the potential to replace ZnO applied to farming.
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Affiliation(s)
- Tingting Xu
- The Key Laboratory of Animal Nutrition and Feed Science in East China of Ministry of Agriculture, College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Xin Ma
- The Key Laboratory of Animal Nutrition and Feed Science in East China of Ministry of Agriculture, College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Xinchen Zhou
- Hainan Institute of Zhejiang University, Yazhou Bay Science and Technology City, Zhejiang University, Sanya, Hainan 572025, China
| | - Mengqi Qian
- The Key Laboratory of Animal Nutrition and Feed Science in East China of Ministry of Agriculture, College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Zhiren Yang
- Hainan Institute of Zhejiang University, Yazhou Bay Science and Technology City, Zhejiang University, Sanya, Hainan 572025, China
| | - Peiwen Cao
- The Key Laboratory of Animal Nutrition and Feed Science in East China of Ministry of Agriculture, College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Xinyan Han
- The Key Laboratory of Animal Nutrition and Feed Science in East China of Ministry of Agriculture, College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Hainan Institute of Zhejiang University, Yazhou Bay Science and Technology City, Zhejiang University, Sanya, Hainan 572025, China
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Venardou B, O'Doherty JV, Maher S, Ryan MT, Gath V, Ravindran R, Kiely C, Rajauria G, Garcia-Vaquero M, Sweeney T. Potential of a fucoidan-rich Ascophyllum nodosum extract to reduce Salmonella shedding and improve gastrointestinal health in weaned pigs naturally infected with Salmonella. J Anim Sci Biotechnol 2022; 13:39. [PMID: 35369884 PMCID: PMC8978420 DOI: 10.1186/s40104-022-00685-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 02/04/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Dietary supplementation with a fucoidan-rich Ascophyllum nodosum extract (ANE), possessing an in vitro anti-Salmonella Typhimurium activity could be a promising on-farm strategy to control Salmonella infection in pigs. The objectives of this study were to: 1) evaluate the anti-S. Typhimurium activity of ANE (containing 46.6% fucoidan, 18.6% laminarin, 10.7% mannitol, 4.6% alginate) in vitro, and; 2) compare the effects of dietary supplementation with ANE and Zinc oxide (ZnO) on growth performance, Salmonella shedding and selected gut parameters in naturally infected pigs. This was established post-weaning (newly weaned pig experiment) and following regrouping of post-weaned pigs and experimental re-infection with S. Typhimurium (challenge experiment). RESULTS In the in vitro assay, increasing ANE concentrations led to a linear reduction in S. Typhimurium counts (P < 0.05). In the newly weaned pig experiment (12 replicates/treatment), high ANE supplementation increased gain to feed ratio, similar to ZnO supplementation, and reduced faecal Salmonella counts on d 21 compared to the low ANE and control groups (P < 0.05). The challenge experiment included thirty-six pigs from the previous experiment that remained on their original dietary treatments (control and high ANE groups with the latter being renamed to ANE group) apart from the ZnO group which transitioned onto a control diet on d 21 (ZnO-residual group). These dietary treatments had no effect on performance, faecal scores, Salmonella shedding or colonic and caecal Salmonella counts (P > 0.05). ANE supplementation decreased the Enterobacteriaceae counts compared to the control. Enterobacteriaceae counts were also reduced in the ZnO-residual group compared to the control (P < 0.05). ANE supplementation decreased the expression of interleukin 22 and transforming growth factor beta 1 in the ileum compared to the control (P < 0.05). CONCLUSIONS ANE supplementation was associated with some beneficial changes in the composition of the colonic microbiota, Salmonella shedding, and the expression of inflammatory genes associated with persistent Salmonella infection.
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Affiliation(s)
- Brigkita Venardou
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland
| | - John V O'Doherty
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Shane Maher
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Marion T Ryan
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland
| | - Vivian Gath
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland
| | - Rajeev Ravindran
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Claire Kiely
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Gaurav Rajauria
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Marco Garcia-Vaquero
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Torres Sweeney
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland.
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Scollo A, Fasso M, Nebbia P, Mazzoni C, Cossettini C. Managing Shiga Toxin-Producing E. coli Using Statistical Process Control Charts for Routine Health and Production Monitoring in Pig Farming. Front Vet Sci 2022; 9:814862. [PMID: 35372552 PMCID: PMC8968397 DOI: 10.3389/fvets.2022.814862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 02/21/2022] [Indexed: 12/03/2022] Open
Abstract
Oedema disease (ED) caused by Shiga-toxin-producing E. coli in pigs is a serious life-threatening disease, particularly among weaned piglets. When a preventive protocol is adopted in a specific farm, interpretation of effectiveness is often complicated in field conditions due to natural or “common cause” variation. For this reason, in this study a Statistical process control (SPC) approach was used to retrospectively evaluate the application of an ED preventive protocol (lower protein diet, ad-libitum fiber, vaccination at 5 days of age) in an infected commercial piglets' weaning site. The analysis was established over a 9-years period (n = 75 consecutive batches; 1,800 weaners per batch) using mortality for each batch as the key parameter of health and production; the statistics and the control limits (mean ± 3-fold sd; UCL, upper control limit; LCL, lower control limit) were based on data from the first 28 batches (Period 1) before the onset of the first ED clinical signs. The charts allowed the detection of defined out of control batches (i.e., with mortality out of the intervention limits) from batch 29 ongoing, exploring a Period 2 (unstable production and ED clinical signs; 36 batches) and a Period 3 (application of the ED preventive protocol; 11 batches). Mortality evaluation using SPC revealed a production system defined under-control (mean moving range bar = 1,34%; UCL = 4,37%; LCL = 0%) during Period 1. During Period 2, charts lost the state of statistical control, as showed by several signals of special cause variation due to the ED outbreak. Period 3 was characterized again by a state of statistical control, where no signals of special cause variation was showed. In conclusion, the retrospective application of SPC charts in the present study was able to confirm the efficacy of an ED preventive protocol in reducing mortality in a piglets' weaning site. SPC charting is suggested as an useful tool to provide insights into relationships between health, managerial, and welfare decision and some selected iceberg parameters in livestock.
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Affiliation(s)
- Annalisa Scollo
- Department of Veterinary Sciences, University of Torino, Torino, Italy
- *Correspondence: Annalisa Scollo
| | | | - Patrizia Nebbia
- Department of Veterinary Sciences, University of Torino, Torino, Italy
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Extraintestinal Pathogenic Escherichia coli: Beta-Lactam Antibiotic and Heavy Metal Resistance. Antibiotics (Basel) 2022; 11:antibiotics11030328. [PMID: 35326791 PMCID: PMC8944441 DOI: 10.3390/antibiotics11030328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 02/25/2022] [Accepted: 02/26/2022] [Indexed: 12/10/2022] Open
Abstract
Multiple-antibiotic-resistant (MAR) extra-intestinal pathogenic Escherichia coli (ExPEC) represents one of the most frequent causes of human nosocomial and community-acquired infections, whose eradication is of major concern for clinicians. ExPECs may inhabit indefinitely as commensal the gut of humans and other animals; from the intestine, they may move to colonize other tissues, where they are responsible for a number of diseases, including recurrent and uncomplicated UTIs, sepsis and neonatal meningitis. In the pre-antibiotic era, heavy metals were largely used as chemotherapeutics and/or as antimicrobials in human and animal healthcare. As with antibiotics, the global incidence of heavy metal tolerance in commensal, as well as in ExPEC, has increased following the ban in several countries of antibiotics as promoters of animal growth. Furthermore, it is believed that extensive bacterial exposure to heavy metals present in soil and water might have favored the increase in heavy-metal-tolerant microorganisms. The isolation of ExPEC strains with combined resistance to both antibiotics and heavy metals has become quite common and, remarkably, it has been recently shown that heavy metal resistance genes may co-select antibiotic-resistance genes. Despite their clinical relevance, the mechanisms underlining the development and spread of heavy metal tolerance have not been fully elucidated. The aim of this review is to present data regarding the development and spread of resistance to first-line antibiotics, such as beta-lactams, as well as tolerance to heavy metals in ExPEC strains.
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33
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Scarpellini E, Balsiger LM, Maurizi V, Rinninella E, Gasbarrini A, Giostra N, Santori P, Abenavoli L, Rasetti C. Zinc and gut microbiota in health and gastrointestinal disease under the COVID-19 suggestion. Biofactors 2022; 48:294-306. [PMID: 35218585 PMCID: PMC9082519 DOI: 10.1002/biof.1829] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 01/30/2022] [Indexed: 12/12/2022]
Abstract
Microelements represent an emerging resource for medicine and its preventive branch. Zinc is the second most abundant element in our organism with peculiar physiologic functions and pathophysiologic implications in systemic and gastrointestinal (GI) diseases. It interacts very often with gut microbiota (GM) and can affect natural course of GI diseases through a bidirectional relationship with intestinal bugs. We aimed to review literature data regarding zinc chemistry, role in health, and GI diseases in man with a special focus on its interaction with GM. We conducted a search on the main medical databases for original articles, reviews, meta-analyses, randomized clinical trials and case series using the following keywords and acronyms and their associations: zinc, microelements, gut microbiota, gut health, and COVID-19. Zinc has a rapid and simple metabolism and limited storage within our body. Its efficacy on immune system modulation reflects on improved response to pathogens, reduced inflammatory response, and improved atopic/allergic reactions. Zinc is also involved in cell cycle regulation (namely, apoptosis) with potential anti-cancerogenic effects. All these effects are in a "symbiotic" relationship with GM. Finally, zinc shows preliminary viral antireplicative effects. Zinc seems to gain more and more evidences on its efficacy in allergic, atopic and infectious diseases treatment, and prevention. COVID-19 can be the booster for research on future applications of zinc as perfect "postbiotic" in medicine.
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Affiliation(s)
- Emidio Scarpellini
- Hepatology and Internal Medicine Unit“Madonna del soccorso” General HospitalSan Benedetto del TrontoItaly
- T.A.R.G.I.DGasthuisberg University Hospital, KULeuvenLuevenBelgium
| | | | - Valentina Maurizi
- Internal Medicine Residency ProgramUniversità Politecnica delle MarcheAnconaItaly
| | - Emanuele Rinninella
- Clinical Nutrition Unit, Gastroenterology, EndocrinologyNephrology and Urology Department, Fondazione Policlinico A. Gemelli IRCCSRomeItaly
- Institute of Medical PathologyCatholic University of the Sacred HeartRomeItaly
| | - Antonio Gasbarrini
- Institute of Medical PathologyCatholic University of the Sacred HeartRomeItaly
| | - Nena Giostra
- Hepatology and Internal Medicine Unit“Madonna del soccorso” General HospitalSan Benedetto del TrontoItaly
| | - Pierangelo Santori
- Hepatology and Internal Medicine Unit“Madonna del soccorso” General HospitalSan Benedetto del TrontoItaly
| | | | - Carlo Rasetti
- Hepatology and Internal Medicine Unit“Madonna del soccorso” General HospitalSan Benedetto del TrontoItaly
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34
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Vats P, Kaur UJ, Rishi P. Heavy metal-induced selection and proliferation of antibiotic resistance: A review. J Appl Microbiol 2022; 132:4058-4076. [PMID: 35170159 DOI: 10.1111/jam.15492] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/28/2021] [Accepted: 02/11/2022] [Indexed: 11/28/2022]
Abstract
Antibiotic resistance is recognized as a global threat to public health. The selection and evolution of antibiotic resistance in clinical pathogens was believed to be majorly driven by the imprudent use of antibiotics. However, concerns regarding the same, through selection pressure by a multitude of other antimicrobial agents, such as heavy metals, are also growing. Heavy metal contamination co-selects antibiotic and metal resistance through numerous mechanisms, such as co-resistance and cross-resistance. Here, we have reviewed the role of heavy metals as antimicrobial resistance driving agents and the underlying concept and mechanisms of co-selection, while also highlighting the scarcity in studies explicitly inspecting the process of co-selection in clinical settings. Prospective strategies to manage heavy metal-induced antibiotic resistance have also been deliberated, underlining the need to find specific inhibitors so that alternate medicinal combinations can be added to the existing therapeutic armamentarium.
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Affiliation(s)
- Prakriti Vats
- Department of Microbiology, Panjab University, Chandigarh, India
| | - Ujjwal Jit Kaur
- Department of Microbiology, Panjab University, Chandigarh, India
| | - Praveen Rishi
- Department of Microbiology, Panjab University, Chandigarh, India
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35
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Lei XJ, Liu ZZ, Park JH, Kim IH. Novel zinc sources as antimicrobial growth promoters for monogastric
animals: A review. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2022; 64:187-196. [PMID: 35530400 PMCID: PMC9039952 DOI: 10.5187/jast.2022.e1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/17/2021] [Accepted: 01/08/2022] [Indexed: 11/20/2022]
Abstract
The essentiality of zinc for animals has been recognized over 80 years. Zinc is
an essential trace element that is a component of many enzymes and is associated
with the various hormones. Apart from the nutritional function, zinc has
antimicrobial property and often be supplemented in diets in the quantities
greater than which is required to meet the nutritional requirement, especially
for weaning pigs. This review will focus on the application of pharmacological
zinc and its mechanisms which may be responsible for the effects of zinc on
performance and health of monogastric animals. Various novel sources of zinc in
non-ruminant animal production will also be discussed. These should assist in
more precisely formulating feed to maximize the production performance and to
maintain the health condition of monogastric animals.
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Affiliation(s)
- Xin Jian Lei
- College of Animal Science and Technology,
Northwest A&F University, Shaanxi 712100, China
- Department of Animal Resource and Science,
Dankook University, Cheonan 31116, Korea
| | - Zhang Zhuang Liu
- College of Veterinary Medicine, Northwest
A&F University, Shaanxi 712100, China
| | - Jae Hong Park
- Department of Animal Resource and Science,
Dankook University, Cheonan 31116, Korea
- Corresponding author: Jae Hong Park, Department of
Animal Resource and Science, Dankook University, Cheonan 31116, Korea. Tel:
+82-41-550-3659, E-mail:
| | - In Ho Kim
- Department of Animal Resource and Science,
Dankook University, Cheonan 31116, Korea
- Corresponding author: In Ho Kim, Department of
Animal Resource and Science, Dankook University, Cheonan 31116, Korea. Tel:
+82-41-550-3652, E-mail:
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36
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Pires J, Huisman JS, Bonhoeffer S, Van Boeckel TP. Increase in antimicrobial resistance in Escherichia coli in food animals between 1980 and 2018 assessed using genomes from public databases. J Antimicrob Chemother 2021; 77:646-655. [PMID: 34894245 DOI: 10.1093/jac/dkab451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 11/09/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Next-generation sequencing has considerably increased the number of genomes available in the public domain. However, efforts to use these genomes for surveillance of antimicrobial resistance have thus far been limited and geographically heterogeneous. We inferred global resistance trends in Escherichia coli in food animals using genomes from public databases. METHODS We retrieved 7632 E. coli genomes from public databases (NCBI, PATRIC and EnteroBase) and screened for antimicrobial resistance genes (ARGs) using ResFinder. Selection bias towards resistance, virulence or specific strains was accounted for by screening BioProject descriptions. Temporal trends for MDR, resistance to antimicrobial classes and ARG prevalence were inferred using generalized linear models for all genomes, including those not subjected to selection bias. RESULTS MDR increased by 1.6 times between 1980 and 2018, as genomes carried, on average, ARGs conferring resistance to 2.65 antimicrobials in swine, 2.22 in poultry and 1.58 in bovines. Highest resistance levels were observed for tetracyclines (42.2%-69.1%), penicillins (19.4%-47.5%) and streptomycin (28.6%-56.6%). Resistance trends were consistent after accounting for selection bias, although lower mean absolute resistance estimates were associated with genomes not subjected to selection bias (difference of 3.16%±3.58% across years, hosts and antimicrobial classes). We observed an increase in extended-spectrum cephalosporin ARG blaCMY-2 and a progressive substitution of tetB by tetA. Estimates of resistance prevalence inferred from genomes in the public domain were in good agreement with reports from systematic phenotypic surveillance. CONCLUSIONS Our analysis illustrates the potential of using the growing volume of genomes in public databases to track AMR trends globally.
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Affiliation(s)
- João Pires
- Institute for Environmental Decisions, ETH Zurich, Zurich, Switzerland
| | - Jana S Huisman
- Institute of Integrative Biology, ETH Zurich, Zurich, Switzerland.,Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | | | - Thomas P Van Boeckel
- Institute for Environmental Decisions, ETH Zurich, Zurich, Switzerland.,Center for Disease Dynamics, Economics & Policy, New Delhi, India
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37
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Li Y, Sun T, Hong Y, Qiao T, Wang Y, Li W, Tang S, Yang X, Li J, Li X, Zhou Z, Xiao Y. Mixture of Five Fermented Herbs ( Zhihuasi Tk) Alters the Intestinal Microbiota and Promotes the Growth Performance in Piglets. Front Microbiol 2021; 12:725196. [PMID: 34764942 PMCID: PMC8576326 DOI: 10.3389/fmicb.2021.725196] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 07/16/2021] [Indexed: 12/17/2022] Open
Abstract
To explore the feasibility of using fermented Chinese herbal mixture Zhihuasi Tk (Z. Tk) supplementation to increase the swine production, the protective effect of dietary supplementation with Z. Tk on the intestinal oxidative stress model and the regulation of both growth performance and intestinal microbiota of weaned piglets were investigated in vitro. Our results showed that the addition of Z. Tk increased the cell viability, prevented the decrease of glutathione peroxidase, and significantly increased the total antioxidant capacity and reduced the damage caused by H2O2 to the tight junction proteins of the porcine small intestinal epithelial cell line (IPEC-J2). Furthermore, weaned piglets supplemented with either 2 kg/ton zinc oxide (ZnO) or 4 kg/ton of Z. Tk in the diet increased body weight as well as average daily feed intake and daily gain, while the feed conversion rate and diarrhea rate decreased within 0–35 days. Results of the taxonomic structure of the intestinal microbiota showed that, in 21 days after weaning, the Firmicutes/Bacteroidetes ratio in experimental group was increased, while the abundance of beneficial bacteria such, as Lactobacillus, was increased by Z. Tk, showing inhibitory effect on pathogenic bacteria such as members of Proteobacteria. In summary, dietary supplementation with Z. Tk maintained the intestinal microbiota in a favorable state for the host to effectively reduce the abnormal changes in the intestinal microbial structure and improved growth performance of weaned piglets. Therefore, Z. Tk may potentially function as a substitute for ZnO in feed additives for weaned piglets in modern husbandry.
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Affiliation(s)
- Yong Li
- COFCO Feed Co., Ltd., Beijing, China
| | - Tiehu Sun
- COFCO Nutrition and Health Research Institute, Beijing, China
| | - Yuxuan Hong
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Tong Qiao
- Hubei Huada Real Science & Technology Co., Ltd., Wuhan, China
| | - Yongsheng Wang
- COFCO Nutrition and Health Research Institute, Beijing, China
| | - Wei Li
- COFCO Feed Co., Ltd., Beijing, China
| | - Shi Tang
- COFCO Feed Co., Ltd., Beijing, China
| | - Xin Yang
- COFCO Nutrition and Health Research Institute, Beijing, China
| | - Jie Li
- COFCO Nutrition and Health Research Institute, Beijing, China
| | - Xiaowen Li
- Hubei Huada Real Science & Technology Co., Ltd., Wuhan, China
| | - Zutao Zhou
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Yuncai Xiao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.,State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
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38
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Chance JA, DeRouchey JM, Amachawadi RG, Ishengoma V, Nagaraja TG, Goodband RD, Woodworth JC, Tokach MD, Calderón HI, Kang Q, Loughmiller JA, Hotze B, Gebhardt JT. Live yeast and yeast extracts with and without pharmacological levels of zinc on nursery pig growth performance and antimicrobial susceptibilities of fecal Escherichia coli. J Anim Sci 2021; 99:6424407. [PMID: 34752618 DOI: 10.1093/jas/skab330] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 11/03/2021] [Indexed: 11/12/2022] Open
Abstract
A total of 360 weanling barrows (Line 200 ×400, DNA, Columbus NE; initially 5.6 ± 0.03 kg) were used in a 42-d study to evaluate yeast-based pre- and probiotics (Phileo by Lesaffre, Milwaukee, WI) in diets with or without pharmacological levels of Zn on growth performance and antimicrobial resistance (AMR) patterns of fecal Escherichia coli. Pens were assigned to 1 of 4 dietary treatments with 5 pigs per pen and 18 pens per treatment. Dietary treatments were arranged in a 2 × 2 factorial with main effects of yeast-based pre- and probiotics (none vs. 0.10% ActiSaf Sc 47 HR+, 0.05% SafMannan, and 0.05% NucleoSaf from d 0 to 7, then concentrations were lowered by 50% from d 7 to 21) and pharmacological levels of Zn (110 vs. 3,000 mg/kg from d 0 to 7, and 2,000 mg/kg from d 7 to 21 with added Zn provided by ZnO). All pigs were fed a common diet from d 21 to 42 post-weaning. There were no yeast ×Zn interactions or effects from yeast additives observed on any response criteria. From d 0 to 21, and 0 to 42, pigs fed pharmacological levels of Zn had increased (P < 0.001) ADG and ADFI. Fecal samples were collected on d 4, 21, and 42 from the same three pigs per pen for fecal dry matter (DM) and AMR patterns of E. coli. On d 4, pigs fed pharmacological levels of Zn had greater fecal DM (P = 0.043); however, no differences were observed on d 21 or 42. E. coli was isolated from fecal samples and the microbroth dilution method was used to determine the minimal inhibitory concentrations (MIC) of E. coli isolates to 14 different antimicrobials. Isolates were categorized as either susceptible, intermediate, or resistant based on Clinical and Laboratory Standards Institute (CLSI) guidelines. The addition of pharmacological levels of Zn had a tendency (P = 0.051) to increase the MIC values of ciprofloxacin; however, these MIC values were still well under the CLSI classified resistant breakpoint for Ciprofloxacin. There was no evidence for differences (P > 0.10) for yeast additives or Zn for AMR of fecal E. coli isolates to any of the remaining antibiotics. In conclusion, pharmacological levels of Zn improved ADG, ADFI, and all isolates were classified as susceptible to ciprofloxacin although the MIC of fecal E. coli tended to be increased. Thus, the short-term use of pharmacological levels of Zn did not increase antimicrobial resistance. There was no response observed from live yeast and yeast extracts for any of the growth, fecal DM, or AMR of fecal E. coli criteria.
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Affiliation(s)
- Jenna A Chance
- Department of Animal Sciences and Industry, Kanas State University, Manhattan KS 66506-0201 USA
| | - Joel M DeRouchey
- Department of Animal Sciences and Industry, Kanas State University, Manhattan KS 66506-0201 USA
| | - Raghavendra G Amachawadi
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan KS, 66506-0201 USA
| | - Victor Ishengoma
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan KS, 66506-0201 USA
| | - Tiruvoor G Nagaraja
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kanas State University, Manhattan KS, 66506-0201 USA
| | - Robert D Goodband
- Department of Animal Sciences and Industry, Kanas State University, Manhattan KS 66506-0201 USA
| | - Jason C Woodworth
- Department of Animal Sciences and Industry, Kanas State University, Manhattan KS 66506-0201 USA
| | - Mike D Tokach
- Department of Animal Sciences and Industry, Kanas State University, Manhattan KS 66506-0201 USA
| | - Hilda I Calderón
- Department of Statistics, College of Arts and Sciences, Kansas State University, Kanas State University, Manhattan KS, 66506-0201 USA
| | - Qing Kang
- Department of Statistics, College of Arts and Sciences, Kansas State University, Kanas State University, Manhattan KS, 66506-0201 USA
| | | | - Brian Hotze
- Phileo by Lesaffre, Milwaukee WI, 53214-1552 USA
| | - Jordan T Gebhardt
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kanas State University, Manhattan KS, 66506-0201 USA
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Paßlack N, van Bömmel-Wegmann S, Vahjen W, Zentek J. Impact of Dietary Zinc Chloride Hydroxide and Zinc Methionine on the Faecal Microbiota of Healthy Adult Horses and Ponies. J Equine Vet Sci 2021; 110:103804. [PMID: 34999337 DOI: 10.1016/j.jevs.2021.103804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/30/2021] [Accepted: 11/02/2021] [Indexed: 10/19/2022]
Abstract
Zinc supplements are often used in equine nutrition to support skin and hoof quality or the immune function. However, no data on the effects of dietary zinc on the intestinal microbiota of horses and ponies are available so far. In the present study, varying dietary zinc concentrations (maintenance (4 mg/kg BW0.75/day), 120 mg/kg dry matter (DM)/day and 240 mg/kg DM/day) were achieved by the supplementation of either zinc chloride hydroxide or zinc methionine (six treatment periods of 4 weeks each). Eight healthy adult ponies and two healthy adult horses were included, and faecal samples were collected at the end of each treatment period to analyse the microbiota (16S rDNA sequencing) and microbial metabolites. With increasing dietary zinc concentrations, the richness of the faecal microbiota decreased, independently of the zinc compound used. In addition, a decrease of the relative abundance of Bacteroidetes and Fibrobacteres as well as of acetate and total short-chain fatty acids in the faeces of the animals was observed at high zinc intakes. Effects on the bacterial order, family and genus level were also detected, which were partly more pronounced for zinc chloride hydroxide. It can be concluded that high dietary zinc levels decrease the richness and fermentative activity of the faecal microbiota of horses and ponies. Although all animals were healthy throughout the study, the effects could be critical for gut health, and deserve more research. The detected differences between the zinc compounds used indicate differences in the bioavailability of organic and inorganic zinc sources in equines.
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Affiliation(s)
- Nadine Paßlack
- Institute of Animal Nutrition, Department of Veterinary Medicine, Freie Universität Berlin, Germany; Current address: Small Animal Clinic, Faculty of Veterinary Medicine, Justus-Liebig-University Giessen, Germany.
| | - Sarah van Bömmel-Wegmann
- Institute of Animal Nutrition, Department of Veterinary Medicine, Freie Universität Berlin, Germany
| | - Wilfried Vahjen
- Institute of Animal Nutrition, Department of Veterinary Medicine, Freie Universität Berlin, Germany
| | - Jürgen Zentek
- Institute of Animal Nutrition, Department of Veterinary Medicine, Freie Universität Berlin, Germany
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40
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Peng S, Zheng H, Herrero-Fresno A, Olsen JE, Dalsgaard A, Ding Z. Co-occurrence of antimicrobial and metal resistance genes in pig feces and agricultural fields fertilized with slurry. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 792:148259. [PMID: 34147788 DOI: 10.1016/j.scitotenv.2021.148259] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/14/2021] [Accepted: 05/31/2021] [Indexed: 06/12/2023]
Abstract
Antimicrobial resistance constitutes a global challenge to public health. The common addition of Zn, Cu and other metals to animal feed and the widespread presence of metal ions in livestock and their receiving environments may be a factor that facilitates the proliferation of antimicrobial resistance via co-selection of antimicrobial resistance genes (ARGs) and metal resistance genes (MRGs). However, the extent of co-selection is not yet fully understood. In this study, we used a metagenomic approach to profile ARGs, MRGs and mobile genetic elements (MGEs) known to constitute potential ARG and MRG vectors of transmission, and we determined the concentration of metal ions to assess the interrelationships between the occurrence of ARGs, MRGs and metal concentrations in samples from pig farms in China. Samples analyzed included fresh pig feces, soils fertilized with treated slurry, and sediments from aquatic environments, where effluent from treated slurry was discharged. Resistance genes to tetracycline and zinc were the most commonly observed ARGs and MRGs for all three types of samples. Significant correlations were observed between the abundance of ARGs and MRGs, and between ARGs/MRGs and MGEs, and between metal and ARGs/MGEs as documented by Pearson's correlation analysis (r > 0.9, P < 0.001). Further network analysis revealed significant co-occurrence between specific ARGs and MRGs, between ARGs/MRGs and MGEs, and between specific metals (Zn, Cr, and Mn) and ARGs and MGEs. Collectively, our findings demonstrate a high level of co-occurrence of antimicrobial and metal resistance genes in slurry from pig farms and their surrounding environments. The results suggest that metals added to pig feed might facilitate co-selection of ARGs and MGEs in the pig production environments, thereby resulting in a bigger pool of mobile ARGs.
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Affiliation(s)
- Shifu Peng
- Department of Environment and Health, Jiangsu Center for Disease Control and Prevention, Nanjing 210009, China; Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C, Denmark
| | - Hao Zheng
- Department of Environment and Health, Jiangsu Center for Disease Control and Prevention, Nanjing 210009, China
| | - Ana Herrero-Fresno
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C, Denmark
| | - John E Olsen
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C, Denmark
| | - Anders Dalsgaard
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C, Denmark; School of Chemical & Biomedical Engineering, Nanyang Technological University, Singapore.
| | - Zhen Ding
- Department of Environment and Health, Jiangsu Center for Disease Control and Prevention, Nanjing 210009, China.
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41
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López M, Madrid J, Hernández F, Ros MA, Segura JC, López MJ, Pallarés FJ, Sánchez CJ, Martínez-Miró S. Effect of Feed Supplementation with Clostridium butyricum, Alone or in Combination with Carob Meal or Citrus Pulp, on Digestive and Metabolic Status of Piglets. Animals (Basel) 2021; 11:ani11102924. [PMID: 34679945 PMCID: PMC8532904 DOI: 10.3390/ani11102924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/03/2021] [Accepted: 10/06/2021] [Indexed: 12/18/2022] Open
Abstract
Simple Summary During the intensive production of weaned piglets, frequent digestive disorders need to be avoided, as it is a critical phase; however, there are limitations to using antibiotics and ZnO at high levels. In this study, we investigate the inclusion of a probiotic (Clostridium butyricum) in combination with sources of fiber that might have a potential prebiotic effect, generating an optimal digestive status for weaned piglets. A trial is carried out using 30 post-weaning piglets for 27 days using five dietary treatments: a negative control, a positive control with high levels of ZnO, and three dietary treatments supplemented with Clostridium butyricum (alone or in combination with carob meal or citrus pulp). Supplementation with this probiotic could improve the piglets’ intestinal wellness status by increasing butyric acid, without being altered by the inclusion of carob meal or citrus pulp at 5%, obtaining digestibility values comparable with those realized by the incorporation of high levels of ZnO in the diet. In addition, carob meal could decrease the concentration of serum interleukin-8 (a type of pro-inflammatory cytokine). However, a growth performance trial of piglets in commercial conditions needs to be developed to confirm these effects. Abstract This work studied the effects of the inclusion of Clostridium butyricum on feed, alone or with carob meal or citrus pulp, on the digestive and metabolic status of weaned piglets. A total of 30 male piglets (weaned at 21 days) is used. There are five dietary treatments: negative without ZnO at high doses (C−), a positive control supplemented with ZnO at 2500 ppm of Zn (C+), supplemented with Clostridium butyricum as a probiotic (PRO), and supplemented with probiotic and 5% carob meal (PROC) or 5% citrus pulp (PROP). During the experiment (27 days), the piglets were periodically weighed and sampled for a serum biochemical, fecal microbiological, intestine histological, and digestive status analysis. The body weight, apparent ileal digestibility of dry matter (DM), and fecal microbiology were not affected by the treatments (p ≥ 0.05). However, the apparent fecal digestibility of DM was lower for the C− treatment than for C+ (p < 0.05), and the total concentration of volatile fatty acids (VFAs) in feces with C+ was lower than that for the PROC treatment (p < 0.05). The treatments with the probiotic had a higher molar proportion of butyric acid in feces than C+, and it was found that C− reached an intermediate value (p < 0.01). No general effects of diet were found on the histological measures performed on the jejunum and ileum, and in the serum biochemical analysis (p ≥ 0.05), only the concentration of interleukin-8 was lower for the PROC treatment compared to the C−, C+, and PRO treatments (p < 0.05). In conclusion, the intestinal wellness of piglets could be improved with the supplementation of Clostridium butyricum by increasing butyric acid, and this effect was not altered with the inclusion of carob meal or citrus pulp. More studies under commercial conditions are needed, as the effects might be different in more challenging environmental circumstances.
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Affiliation(s)
- Marina López
- Department of Animal Production, Faculty of Veterinary Science, Regional Campus of International Excellence “Mare Nostrum”, University of Murcia, 30100 Murcia, Spain; (M.L.); (F.H.); (M.J.L.); (C.J.S.); (S.M.-M.)
| | - Josefa Madrid
- Department of Animal Production, Faculty of Veterinary Science, Regional Campus of International Excellence “Mare Nostrum”, University of Murcia, 30100 Murcia, Spain; (M.L.); (F.H.); (M.J.L.); (C.J.S.); (S.M.-M.)
- Correspondence: ; Tel.: +34-868-884-750
| | - Fuensanta Hernández
- Department of Animal Production, Faculty of Veterinary Science, Regional Campus of International Excellence “Mare Nostrum”, University of Murcia, 30100 Murcia, Spain; (M.L.); (F.H.); (M.J.L.); (C.J.S.); (S.M.-M.)
| | - Martín Antonio Ros
- Agrarian Transformation Society, Number 2439, La Hoya, 30816 Lorca, Spain; (M.A.R.); (J.C.S.)
| | - Juan Carlos Segura
- Agrarian Transformation Society, Number 2439, La Hoya, 30816 Lorca, Spain; (M.A.R.); (J.C.S.)
| | - Miguel José López
- Department of Animal Production, Faculty of Veterinary Science, Regional Campus of International Excellence “Mare Nostrum”, University of Murcia, 30100 Murcia, Spain; (M.L.); (F.H.); (M.J.L.); (C.J.S.); (S.M.-M.)
| | - Francisco José Pallarés
- Department of Anatomy and Comparative Pathology and Toxicology, Faculty of Veterinary Medicine, Agrifood Campus of International Excellence–ceiA3, University of Córdoba, 14014 Córdoba, Spain;
| | - Cristian Jesús Sánchez
- Department of Animal Production, Faculty of Veterinary Science, Regional Campus of International Excellence “Mare Nostrum”, University of Murcia, 30100 Murcia, Spain; (M.L.); (F.H.); (M.J.L.); (C.J.S.); (S.M.-M.)
| | - Silvia Martínez-Miró
- Department of Animal Production, Faculty of Veterinary Science, Regional Campus of International Excellence “Mare Nostrum”, University of Murcia, 30100 Murcia, Spain; (M.L.); (F.H.); (M.J.L.); (C.J.S.); (S.M.-M.)
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Haley BJ, Van Kessel JAS. The resistome of the bovine gastrointestinal tract. Curr Opin Biotechnol 2021; 73:213-219. [PMID: 34492620 DOI: 10.1016/j.copbio.2021.07.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 07/21/2021] [Indexed: 01/13/2023]
Abstract
The gastrointestinal tracts of beef and dairy cattle are reservoirs of antimicrobial-resistant bacteria, and our knowledge of the ecology of resistance in these animals has changed with the advent of novel molecular technologies. Application of metagenomics and qPCR to the study of bovine gut ecology has demonstrated that there is overlap, with some differences, between beef and dairy cattle fecal resistomes, that treatment with antimicrobials often transiently influences the resistome, and young calves carry a high abundance of ARGs. Future work should harness emerging metagenome sequencing technologies to better describe the taxa harboring ARGs and collocated non-resistance genes and use these data along with identifying the multiplicity of factors driving resistance to develop strategies to reduce AMR carriage in cattle.
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Affiliation(s)
- Bradd J Haley
- Environmental Microbial and Food Safety Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD, USA.
| | - Jo Ann S Van Kessel
- Environmental Microbial and Food Safety Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD, USA
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Pajarillo EAB, Lee E, Kang DK. Trace metals and animal health: Interplay of the gut microbiota with iron, manganese, zinc, and copper. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2021; 7:750-761. [PMID: 34466679 PMCID: PMC8379138 DOI: 10.1016/j.aninu.2021.03.005] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 01/27/2021] [Accepted: 03/16/2021] [Indexed: 12/27/2022]
Abstract
Metals such as iron, manganese, copper, and zinc are recognized as essential trace elements. These trace metals play critical roles in development, growth, and metabolism, participating in various metabolic processes by acting as cofactors of enzymes or providing structural support to proteins. Deficiency or toxicity of these metals can impact human and animal health, giving rise to a number of metabolic and neurological disorders. Proper breakdown, absorption, and elimination of these trace metals is a tightly regulated process that requires crosstalk between the host and these micronutrients. The gut is a complex system that serves as the interface between these components, but other factors that contribute to this delicate interaction are not well understood. The gut is home to trillions of microorganisms and microbial genes (the gut microbiome) that can regulate the metabolism and transport of micronutrients and contribute to the bioavailability of trace metals through their assimilation from food sources or by competing with the host. Furthermore, deficiency or toxicity of these metals can modulate the gut microenvironment, including microbiota, nutrient availability, stress, and immunity. Thus, understanding the role of the gut microbiota in the metabolism of manganese, iron, copper, and zinc, as well as in heavy metal deficiencies and toxicities, and vice versa, may provide insight into developing improved or alternative therapeutic strategies to address emerging health concerns. This review describes the current understanding of how the gut microbiome and trace metals interact and affect host health, particularly in pigs.
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Affiliation(s)
- Edward Alain B. Pajarillo
- Department of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee 32307, FL, USA
| | - Eunsook Lee
- Department of Animal Resources Science, Dankook University, Cheonan 31116, Republic of Korea
| | - Dae-Kyung Kang
- Department of Animal Resources Science, Dankook University, Cheonan 31116, Republic of Korea
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Xie C, Zhang Y, Niu K, Liang X, Wang H, Shan J, Wu X. Enteromorpha polysaccharide -zinc replacing prophylactic antibiotics contributes to improving gut health of weaned piglets. ACTA ACUST UNITED AC 2021; 7:641-649. [PMID: 34401542 PMCID: PMC8340054 DOI: 10.1016/j.aninu.2021.01.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 01/02/2021] [Accepted: 01/07/2021] [Indexed: 12/24/2022]
Abstract
This research aimed to study whether Enteromorpha polysaccharide-zinc (EP-Zn) can act as an alternative to antibiotics in weaned piglet feeds. Two hundred and twenty-four weaned piglets from 14 pens were randomly assigned into 1 of 2 groups according to their body weight and litter size (7 pens/group). The piglets in the antibiotics group were fed with olaquindox at 400 mg/kg and enduracidin at 800 mg/kg basal diet, and piglets in the EP-Zn group were fed with EP-Zn at 800 mg/kg basal diet. One piglet per pen was selected to collect samples after 14 d of feeding. Results showed that EP-Zn supplementation significantly increased the plasma anti-oxidants level compared with the antibiotics group. However, a nonsignificant difference was observed in growth performance between treatment groups. Additionally, the intestinal tight junction (TJ) protein expression and the histopathologic evaluation data showed that EP-Zn contributed to improving intestinal development. Further, piglets in the EP-Zn group had a lower level of intestinal inflammation-related cytokines including IL-6 (P < 0.001), IL-8 (P < 0.05), IL-12 (P < 0.05) and tumor necrosis factor-α (TNF-α) (P < 0.001), and showed an inhibition of the phosphorylation nuclear transcription factor-kappa B (p–NF–κB) (P < 0.05) and total NF-κB (P < 0.001) level in the jejunal mucosa. Taken together, it is supposed that EP-Zn, to some extent, would be a potent alternative to prophylactic antibiotics in improving the health status of weaned piglets.
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Affiliation(s)
- Chunyan Xie
- College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, China.,Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, China
| | - Yumei Zhang
- College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, China.,Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, Hunan 410125, China
| | - Kaimin Niu
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, Hunan 410125, China.,Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, China
| | - Xiaoxiao Liang
- Henan Zhongke Ground Food Co., Ltd. Zhengzhou, Henan 450001, China
| | - Haihua Wang
- Qingdao Seawin BioteSch Group Co., Ltd, Qingdao, 266071, China
| | - Junwei Shan
- Qingdao Seawin BioteSch Group Co., Ltd, Qingdao, 266071, China
| | - Xin Wu
- College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, China.,Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, Hunan 410125, China.,Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, China
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Wang X, Lan B, Fei H, Wang S, Zhu G. Heavy metal could drive co-selection of antibiotic resistance in terrestrial subsurface soils. JOURNAL OF HAZARDOUS MATERIALS 2021; 411:124848. [PMID: 33858075 DOI: 10.1016/j.jhazmat.2020.124848] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 06/12/2023]
Abstract
Terrestrial surface ecosystems are important sinks for antibiotic resistance genes (ARGs) due to the continuous discharge of contaminants from human-impacted ecosystems. However, the abundance and resistance types of ARGs and their influencing factors in terrestrial subsurface soils are not well known. In this study, we investigated the abundance and diversity of ARGs, and their correlations with metal resistance genes (MRGs), mobile genetic elements (MGEs), bacteria, and heavy metals in subsurface soils using high throughput quantitative PCR and metagenomic sequencing approaches. Abundant and diverse ARGs were detected with high spatial heterogeneity among sampling sites. Vertically, there was no significant difference in ARG profiles between the aquifer and non-aquifer soils. Heavy metals were key factors shaping ARG profiles in soils with high heavy metal contents, while they showed no significant effect in low contents. Moreover, heavy metals could trigger the proliferation of antibiotic resistance by increasing MGE abundance or influencing bacterial communities. Metagenomic analysis also revealed the widespread co-occurrence of ARGs and MRGs, with heavy metals possibly enhancing the co-selection of ARGs and MRGs in soils with high heavy metal contents. This study highlighted the heavy metal-driven co-selection of ARGs and revealed the occurrence of ARG pollution in terrestrial subsurface soils.
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Affiliation(s)
- Xiaomin Wang
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bangrui Lan
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hexin Fei
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Shanyun Wang
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Guibing Zhu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Mesonero-Escuredo S, Morales J, Mainar-Jaime RC, Díaz G, Arnal JL, Casanovas C, Barrabés S, Segalés J. Effect of Edema Disease Vaccination on Mortality and Growth Parameters in Nursery Pigs in a Shiga Toxin 2e Positive Commercial Farm. Vaccines (Basel) 2021; 9:567. [PMID: 34072889 PMCID: PMC8226810 DOI: 10.3390/vaccines9060567] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 05/20/2021] [Accepted: 05/27/2021] [Indexed: 11/20/2022] Open
Abstract
Diseases caused by Escherichia coli are recognized as major problems in the swine industry, one of them being edema disease (ED). Importantly, the current decrease in antibiotic use may cause difficulties in controlling the disorders caused by E. coli. Therefore, this study assessed the efficacy of a commercial vaccine against ED in nursery pigs from a farm with previous history of ED. A total of 1344 pigs were monitored; half of them were randomly assigned to a vaccinated group (VG) and the other half to a non-vaccinated group (NVG). The vaccine was administered at 7 days of age. Animals received a pre-starter feed with 2500 ppm of zinc oxide (ZnO) for 2 weeks and a starter feed without ZnO for another 3 weeks. Pen-group weights were recorded at 28 (weaning), 42 (end of pre-starter phase), and 63 days of life (end of nursery phase). Death/culling rates, average daily gain (ADG), and average daily feed intake (ADFI) were calculated for each group at each phase. The overall relative risk of dying/being culled for a pig in the NVG was 5 times higher than that of the VG group but increased to 12 times higher during the starter period. ADG and ADFI were also significantly higher in the VG group for that period. Vaccination against ED significantly reduced pig losses and improved ADG and ADFI, particularly when ZnO was not used.
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Affiliation(s)
| | - Joaquín Morales
- PigCHAMP Pro Europa SL, 40006 Segovia, Spain; (J.M.); (G.D.)
| | - Raúl Carlos Mainar-Jaime
- Departamento de Patología Animal, Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2-(Universidad de Zaragoza-CITA), 50013 Zaragoza, Spain;
| | - Gonzalo Díaz
- PigCHAMP Pro Europa SL, 40006 Segovia, Spain; (J.M.); (G.D.)
| | | | - Carlos Casanovas
- CEVA Salud Animal, 08028 Barcelona, Spain; (S.M.-E.); (C.C.); (S.B.)
| | - Sergio Barrabés
- CEVA Salud Animal, 08028 Barcelona, Spain; (S.M.-E.); (C.C.); (S.B.)
| | - Joaquim Segalés
- Departament de Sanitat i Anatomia Animals, Universitat Autònoma de Barcelona (UAB), 08193 Barcelona, Spain
- Centre de Recerca en Sanitat Animal (CReSA, IRTA-UAB), Campus de la Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
- OIE Collaborating Centre for the Research and Control of Emerging and Re-emerging Swine Diseases in Europe (IRTA-CReSA), 08193 Barcelona, Spain
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Laird TJ, Abraham S, Jordan D, Pluske JR, Hampson DJ, Trott DJ, O'Dea M. Porcine enterotoxigenic Escherichia coli: Antimicrobial resistance and development of microbial-based alternative control strategies. Vet Microbiol 2021; 258:109117. [PMID: 34049073 DOI: 10.1016/j.vetmic.2021.109117] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 05/13/2021] [Indexed: 12/17/2022]
Abstract
Strains of enterotoxigenic Escherichia coli (ETEC) causing post-weaning diarrhoea (PWD) in piglets have a widespread and detrimental impact on animal health and the economics of pork production. Traditional approaches to control and prevention have placed a strong emphasis on antimicrobial use (AMU) to the extent that current prevalent porcine ETEC strains have developed moderate to severe resistance. This complicates treatment of ETEC infection by limiting therapeutic options, increasing diagnostic costs and increasing mortality rates. Management factors, the use of supra-physiological levels of zinc oxide and selected feed additives have all been documented to lower the incidence of ETEC infection in pigs; however, each intervention has its own limitations and cannot solely be relied upon as an alternative to AMU. Consequently, treatment options for porcine ETEC are moving towards the use of newer antimicrobials of higher public health significance. This review focuses on microorganisms and microbial-derived products that could provide a naturally evolved solution to ETEC infection and disease. This category holds a plethora of yet to be explored possibilities, however studies based around bacteriophage therapy, probiotics and the use of probiotic fermentation products as postbiotics have demonstrated promise. Ultimately, pig producers and veterinarians need these solutions to reduce the reliance on critically important antimicrobials (CIAs), to improve economic and animal welfare outcomes, and to lessen the One Health threat potentiated by the dissemination of AMR through the food chain.
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Affiliation(s)
- Tanya J Laird
- Antimicrobial Resistance and Infectious Diseases Laboratory, College of Science, Health, Engineering and Education, Murdoch University, Murdoch, Western Australia, Australia.
| | - Sam Abraham
- Antimicrobial Resistance and Infectious Diseases Laboratory, College of Science, Health, Engineering and Education, Murdoch University, Murdoch, Western Australia, Australia.
| | - David Jordan
- NSW Department of Primary Industries, Wollongbar, New South Wales, Australia
| | - John R Pluske
- Antimicrobial Resistance and Infectious Diseases Laboratory, College of Science, Health, Engineering and Education, Murdoch University, Murdoch, Western Australia, Australia
| | - David J Hampson
- Antimicrobial Resistance and Infectious Diseases Laboratory, College of Science, Health, Engineering and Education, Murdoch University, Murdoch, Western Australia, Australia
| | - Darren J Trott
- Australian Centre for Antimicrobial Resistance Ecology, School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, South Australia, Australia
| | - Mark O'Dea
- Antimicrobial Resistance and Infectious Diseases Laboratory, College of Science, Health, Engineering and Education, Murdoch University, Murdoch, Western Australia, Australia
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Liu S, Shi J, Wang J, Dai Y, Li H, Li J, Liu X, Chen X, Wang Z, Zhang P. Interactions Between Microplastics and Heavy Metals in Aquatic Environments: A Review. Front Microbiol 2021; 12:652520. [PMID: 33967988 PMCID: PMC8100347 DOI: 10.3389/fmicb.2021.652520] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/11/2021] [Indexed: 11/13/2022] Open
Abstract
Microplastics (MPs), tiny particles broken down from larger pieces of plastics, have accumulated everywhere on the earth. As an inert carbon stream in aquatic environment, they have been reported as carriers for heavy metals and exhibit diverse interactive effects. However, these interactions are still poorly understood, especially mechanisms driving these interactions and how they pose risks on living organisms. In this mini review, a bibliometric analysis in this field was conducted and then the mechanisms driving these interactions were examined, especially emphasizing the important roles of microorganisms on the interactions. Their combined toxic effects and the potential hazards to human health were also discussed. Finally, the future research directions in this field were suggested. This review summarized the recent research progress in this field and highlighted the essential roles of the microbes on the interactions between MPs and heavy metals with the hope to promote more studies to unveil action mechanisms and reduce/eliminate the risks associated with MP presence.
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Affiliation(s)
- Sitong Liu
- School of Environmental Science and Engineering, Tianjin University, Tianjin, China
| | - Jiafu Shi
- School of Environmental Science and Engineering, Tianjin University, Tianjin, China
| | - Jiao Wang
- School of Environmental Science and Engineering, Tianjin University, Tianjin, China
| | - Yexin Dai
- School of Environmental Science and Engineering, Tianjin University, Tianjin, China
| | - Hongyu Li
- School of Environmental Science and Engineering, Tianjin University, Tianjin, China
| | - Jiayao Li
- School of Environmental Science and Engineering, Tianjin University, Tianjin, China
| | - Xianhua Liu
- School of Environmental Science and Engineering, Tianjin University, Tianjin, China
| | - Xiaochen Chen
- Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, College of Environment and Resources, Fuzhou University, Fuzhou, China
| | - Zhiyun Wang
- School of Environmental Science and Engineering, Tianjin University, Tianjin, China
| | - Pingping Zhang
- College of Food Science and Engineering, Tianjin Agricultural University, Tianjin, China
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Overview on the role of heavy metals tolerance on developing antibiotic resistance in both Gram-negative and Gram-positive bacteria. Arch Microbiol 2021; 203:2761-2770. [PMID: 33811263 DOI: 10.1007/s00203-021-02275-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 02/11/2021] [Accepted: 03/10/2021] [Indexed: 12/26/2022]
Abstract
Environmental health is a critical concern, continuously contaminated by physical and biological components (viz., anthropogenic activity), which adversely affect on biodiversity, ecosystems and human health. Nonetheless, environmental pollution has great impact on microbial communities, especially bacteria, which try to evolve in changing environment. For instance, during the course of adaptation, bacteria easily become resistance to antibiotics and heavy metals. Antibiotic resistance genes are now one of the most vital pollutants, provided as a source of frequent horizontal gene transfer. In this review, the environmental cause of multidrug resistance (MDR) that was supposed to be driven by either heavy metals or combination of environmental factors was essentially reviewed, especially focussed on the correlation between accumulation of heavy metals and development of MDR by bacteria. This kind of correlation was seemed to be non-significant, i.e. paradoxical. Gram-positive bacteria accumulating much of toxic heavy metal (i.e. highly stress tolerance) were unlikely to become MDR, whereas Gram-negative bacteria that often avoid accumulation of toxic heavy metal by efflux pump systems were come out to be more prone to MDR. So far, other than antibiotic contaminant, no such available data strongly support the direct influence of heavy metals in bacterial evolution of MDR; combinations of factors may drive the evolution of antibiotic resistance. Therefore, Gram-positive bacteria are most likely to be an efficient member in treatment of industrial waste water, especially in the removal of heavy metals, perhaps inducing the less chance of antibiotic resistance pollution in the environment.
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