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Rosch MEG, Rehner J, Schmartz GP, Manier SK, Becker U, Müller R, Meyer MR, Keller A, Becker SL, Keller V. Time series of chicken stool metagenomics and egg metabolomics in changing production systems: preliminary insights from a proof-of-concept. ONE HEALTH OUTLOOK 2024; 6:4. [PMID: 38549118 PMCID: PMC10979557 DOI: 10.1186/s42522-024-00100-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 03/06/2024] [Indexed: 04/01/2024]
Abstract
BACKGROUND Different production systems of livestock animals influence various factors, including the gut microbiota. METHODS We investigated whether changing the conditions from barns to free-range chicken farming impacts the microbiome over the course of three weeks. We compared the stool microbiota of chicken from industrial barns after introducing them either in community or separately to a free-range environment. RESULTS Over the six time points, 12 taxa-mostly lactobacilli-changed significantly. As expected, the former barn chicken cohort carries more resistances to common antibiotics. These, however, remained positive over the observed period. At the end of the study, we collected eggs and compared metabolomic profiles of the egg white and yolk to profiles of eggs from commercial suppliers. Here, we observed significant differences between commercial and fresh collected eggs as well as differences between the former barn chicken and free-range chicken. CONCLUSION Our data indicate that the gut microbiota can undergo alterations over time in response to changes in production systems. These changes subsequently exert an influence on the metabolites found in the eggs. The preliminary results of our proof-of-concept study motivate larger scale observations with more individual chicken and longer observation periods.
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Affiliation(s)
- Michael E G Rosch
- Medical Doctor program Human Medicine, Saarland University/ Saarland University Medical Center, 66123/66421, Saarbrücken/Homburg, Germany
| | - Jacqueline Rehner
- Institute of Medical Microbiology and Hygiene, Saarland University, 66421, Homburg/Saar, Germany
| | - Georges P Schmartz
- Department of Clinical Bioinformatics, Saarland University, 66123, Saarbrücken, Germany
| | - Sascha K Manier
- Department of Experimental and Clinical Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Saarland University, Center for Molecular Signaling (PZMS), 66421, Homburg/Saar, Germany
| | - Uta Becker
- MIP Pharma GmbH, 66386, Sankt Ingbert, Germany
| | - Rolf Müller
- Helmholtz Institute for Pharmaceutical Research Saarland, 66123, Saarbrücken, Germany
| | - Markus R Meyer
- Department of Experimental and Clinical Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Saarland University, Center for Molecular Signaling (PZMS), 66421, Homburg/Saar, Germany
| | - Andreas Keller
- Department of Clinical Bioinformatics, Saarland University, 66123, Saarbrücken, Germany
| | - Sören L Becker
- Institute of Medical Microbiology and Hygiene, Saarland University, 66421, Homburg/Saar, Germany
| | - Verena Keller
- Department of Clinical Bioinformatics, Saarland University, 66123, Saarbrücken, Germany.
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2
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Asare PT, Greppi A, Geirnaert A, Pennacchia A, Babst A, Lacroix C. Glycerol and reuterin-producing Limosilactobacillus reuteri enhance butyrate production and inhibit Enterobacteriaceae in broiler chicken cecal microbiota PolyFermS model. BMC Microbiol 2023; 23:384. [PMID: 38053034 DOI: 10.1186/s12866-023-03091-6] [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: 06/20/2023] [Accepted: 10/26/2023] [Indexed: 12/07/2023] Open
Abstract
BACKGROUND Administering probiotic strains of Limosilactobacillus reuteri to poultry has been shown to improve poultry performance and health. Some strains of L. reuteri taxa can produce reuterin, a broad-spectrum antimicrobial compound from glycerol conversion, with high inhibitory activity against enterobacteria. However, little is known about the metabolism of glycerol in the complex chicken cecal microbiota nor the effect of glycerol, either alone or combined with L. reuteri on the microbiota. In this study, we investigated the effect of L. reuteri PTA5_F13, a high-reuterin-producing chicken strain and glycerol, alone or combined, on broiler chicken cecal microbiota composition and activity using the continuous PolyFermS model recently developed to mimic chicken cecal fermentation. METHODS Three independent PolyFermS chicken cecal microbiota models were inoculated with immobilized cecal microbiota from different animals and operated continuously. The effects of two additional levels of glycerol (50 and 100 mM) with or without daily supplementation of chicken-derived L. reuteri PTA5_F13 (107 CFU/mL final concentration) were tested in parallel second-stage reactors continuously inoculated with the same microbiota. We analyzed the complex chicken gut microbiota structure and dynamics upon treatment using 16S rRNA metabarcoding and qPCR. Microbiota metabolites, short-chain and branched-chain fatty acids, and glycerol and reuterin products were analyzed by HPLC in effluent samples from stabilized reactors. RESULTS Supplementation with 100 mM glycerol alone and combined with L. reuteri PTA5_F13 resulted in a reproducible increase in butyrate production in the three modelled microbiota (increases of 18 to 25%). Glycerol alone resulted also in a reduction of Enterobacteriaceae in two of the three microbiota, but no effect was detected for L. reuteri alone. When both treatments were combined, all microbiota quantitatively inhibited Enterobacteriaceae, including in the last model that had very high initial concentrations of Enterobacteriaceae. Furthermore, a significant 1,3-PDO accumulation was measured in the effluent of the combined treatment, confirming the conversion of glycerol via the reuterin pathway. Glycerol supplementation, independent of L. reuteri addition, did not affect the microbial community diversity. CONCLUSIONS Glycerol induced a stable and reproducible butyrogenic activity for all tested microbiota and induced an inhibitory effect against Enterobacteriaceae that was strengthened when reuterin-producing L. reuteri was spiked daily. Our in vitro study suggests that co-application of L. reuteri PTA5_F13 and glycerol could be a useful approach to promote chicken gut health by enhancing metabolism and protection against Enterobacteriaceae.
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Affiliation(s)
- Paul Tetteh Asare
- Department of Health Sciences and Technology, Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zürich, LFV D 20, Schmelzbergstrasse 7, CH-8042, Zurich, Switzerland
- Present address: Gnubiotics Sciences SA, Epalinges, Switzerland
| | - Anna Greppi
- Department of Health Sciences and Technology, Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zürich, LFV D 20, Schmelzbergstrasse 7, CH-8042, Zurich, Switzerland
| | - Annelies Geirnaert
- Department of Health Sciences and Technology, Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zürich, LFV D 20, Schmelzbergstrasse 7, CH-8042, Zurich, Switzerland
| | - Alessia Pennacchia
- Department of Health Sciences and Technology, Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zürich, LFV D 20, Schmelzbergstrasse 7, CH-8042, Zurich, Switzerland
| | - Angela Babst
- Department of Health Sciences and Technology, Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zürich, LFV D 20, Schmelzbergstrasse 7, CH-8042, Zurich, Switzerland
| | - Christophe Lacroix
- Department of Health Sciences and Technology, Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zürich, LFV D 20, Schmelzbergstrasse 7, CH-8042, Zurich, Switzerland.
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3
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Hattab J, Marruchella G, Sibra A, Tiscar PG, Todisco G. Canaries' Microbiota: The Gut Bacterial Communities along One Female Reproductive Cycle. Microorganisms 2023; 11:2289. [PMID: 37764133 PMCID: PMC10537324 DOI: 10.3390/microorganisms11092289] [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: 08/07/2023] [Revised: 08/31/2023] [Accepted: 09/09/2023] [Indexed: 09/29/2023] Open
Abstract
Investigations of bacterial communities are on the rise both in human and veterinary medicine. Their role in health maintenance and pathogenic mechanisms is in the limelight of infectious, metabolic, and cancer research. Among the most considered, gut bacterial communities take the cake. Their part in animals was assessed mainly to improve animal production, public health, and pet management. In this regard, canaries deserve attention, being a popular pet and source of economic income for bird-keepers, for whom breeding represents a pivotal point. Thus, the present work aimed to follow gut bacterial communities' evolution along on whole reproductive cycle of 12 healthy female canaries. Feces were collected during parental care, molting, and resting phase, and submitted for 16S rRNA sequencing. Data were analyzed and a substantial presence of Lactobacillus aviarius along all the phases, and a relevant shift of microbiota during molting and rest due to an abrupt decrease of the Vermiphilaceae family were detected. Although the meaning of such change is not clear, future research may highlight unforeseen scenarios. Moreover, Lactobacillus aviarius may be deemed for normal bacteria flora restoration in debilitated birds, perhaps improving their health and productivity.
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Affiliation(s)
- Jasmine Hattab
- Department of Veterinary Medicine, University of Teramo, SP18 Piano d’Accio, 64100 Teramo, Italy; (J.H.); (G.M.)
| | - Giuseppe Marruchella
- Department of Veterinary Medicine, University of Teramo, SP18 Piano d’Accio, 64100 Teramo, Italy; (J.H.); (G.M.)
| | - Alessandra Sibra
- APHA—Animal & Plant Health Agency, Building 1, Sevington Inland Border Facility, Ashford TN25 6GE, UK;
| | - Pietro Giorgio Tiscar
- Department of Veterinary Medicine, University of Teramo, SP18 Piano d’Accio, 64100 Teramo, Italy; (J.H.); (G.M.)
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Park J, Bae D, Kim SA. Microbial trace investigation throughout the entire chicken supply chain based on metagenomic high-throughput sequencing. Food Res Int 2023; 169:112775. [PMID: 37254378 DOI: 10.1016/j.foodres.2023.112775] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 03/12/2023] [Accepted: 03/24/2023] [Indexed: 06/01/2023]
Abstract
As poultry possesses a high risk of contamination by various pathogens and has repeatedly been linked to foodborne outbreaks, ensuring microbiological safety throughout the chicken production chain is essential. In this study, bacterial communities in chickens and associated environments (n = 72), including feces, floors, gloves, and worktables, were trace investigated from the broiler farm, slaughterhouse, meat processing plant, and the market by amplicon sequencing of the V4 region of the 16S rRNA. The bacterial composition in live chickens along the production chain significantly changed across the stages, with distinct microbiota noted at each step. Pseudomonas, Shewanella, Acinetobacter, and Psychrobacter were dominant in the final products. Staphylococcus was abundant in live birds originally (36.83 %) but dramatically decreased after slaughter (3.07 %, 0.06 %, and 0.42 % in slaughtered, processed, and market carcasses, respectively), which may be attributed to defeathering. The proportion of Enterobacteriaceae, Acinetobacter, and Pseudomonas increased from 0.95 %, 0.03 %, and 0.04 % before slaughter to 13.57 %, 34.19 %, and 21.90 %, respectively, after slaughter, highlighting the importance of hygiene management in the succeeding steps. Diversity analysis revealed the possibility of bacterial transmission between samples from the processing plant and the market. Source tracking was performed to identify microbial contamination routes in the chicken microbiome; the major bacterial sources in the final products were the samples from the processing plant (such as processed carcasses, gloves, and worktables), accounting for 93.53 % of the total microbial sources. These results suggest that in-depth knowledge of microbial transmission between chickens and their surroundings can facilitate a precise understanding of microbiological concerns across the poultry production system and help establish safety management measures for the poultry industry.
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Affiliation(s)
- Jiwon Park
- Department of Food Science and Biotechnology, Ewha Womans University, Seoul, South Korea
| | - Dongryeoul Bae
- Division of Research and Development, TracoWorld Ltd., Gwangmyeong, South Korea
| | - Sun Ae Kim
- Department of Food Science and Biotechnology, Ewha Womans University, Seoul, South Korea.
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5
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Yang C, Das Q, Rehman MA, Yin X, Shay J, Gauthier M, Lau CHF, Ross K, Diarra MS. Microbiome of Ceca from Broiler Chicken Vaccinated or Not against Coccidiosis and Fed Berry Pomaces. Microorganisms 2023; 11:1184. [PMID: 37317158 DOI: 10.3390/microorganisms11051184] [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: 03/29/2023] [Revised: 04/20/2023] [Accepted: 04/28/2023] [Indexed: 06/16/2023] Open
Abstract
American cranberry (Vaccinium macrocarpon) and lowbush/wild blueberry (V. angustifolium) pomace are polyphenol-rich products having potentially beneficial effects in broiler chickens. This study investigated the cecal microbiome of broiler-vaccinated or non-vaccinated birds against coccidiosis. Birds in each of the two groups (vaccinated or non-vaccinated) were fed a basal non-supplemented diet (NC), a basal diet supplemented with bacitracin (BAC), American cranberry (CP), and lowbush blueberry (BP) pomace alone or in combination (CP + BP). At 21 days of age, cecal DNA samples were extracted and analyzed using both whole-metagenome shotgun sequencing and targeted-resistome sequencing approaches. Ceca from vaccinated birds showed a lower abundance of Lactobacillus and a higher abundance of Escherichia coli than non-vaccinated birds (p < 0.05). The highest and lowest abundance of L. crispatus and E. coli, respectively, were observed in birds fed CP, BP, and CP + BP compared to those from NC or BAC treatments (p < 0.05). Coccidiosis vaccination affected the abundance of virulence genes (VGs) related to adherence, flagella, iron utilization, and secretion system. Toxin-related genes were observed in vaccinated birds (p < 0.05) in general, with less prevalence in birds fed CP, BP, and CP + BP than NC and BAC (p < 0.05). More than 75 antimicrobial resistance genes (ARGs) detected by the shotgun metagenomics sequencing were impacted by vaccination. Ceca from birds fed CP, BP, and CP + BP showed the lowest (p < 0.05) abundances of ARGs related to multi-drug efflux pumps, modifying/hydrolyzing enzyme and target-mediated mutation, when compared to ceca from birds fed BAC. Targeted metagenomics showed that resistome from BP treatment was distant to other groups for antimicrobials, such as aminoglycosides (p < 0.05). Significant differences in the richness were observed between the vaccinated and non-vaccinated groups for aminoglycosides, β-lactams, lincosamides, and trimethoprim resistance genes (p < 0.05). Overall, this study demonstrated that dietary berry pomaces and coccidiosis vaccination significantly impacted cecal microbiota, virulome, resistome, and metabolic pathways in broiler chickens.
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Affiliation(s)
- Chongwu Yang
- Guelph Research and Development Center, Agriculture and Agri-Food Canada (AAFC), Guelph, ON N1G 5C9, Canada
| | - Quail Das
- Guelph Research and Development Center, Agriculture and Agri-Food Canada (AAFC), Guelph, ON N1G 5C9, Canada
| | - Muhammad A Rehman
- Guelph Research and Development Center, Agriculture and Agri-Food Canada (AAFC), Guelph, ON N1G 5C9, Canada
| | - Xianhua Yin
- Guelph Research and Development Center, Agriculture and Agri-Food Canada (AAFC), Guelph, ON N1G 5C9, Canada
| | - Julie Shay
- Ottawa Laboratory (Carling) Research and Development, Canadian Food Inspection Agency, Ottawa, ON K1Y 4K7, Canada
| | - Martin Gauthier
- Biological Informatics Centre of Excellence, AAFC, Saint-Hyacinthe, QC J2S 8E3, Canada
| | - Calvin Ho-Fung Lau
- Ottawa Laboratory (Carling) Research and Development, Canadian Food Inspection Agency, Ottawa, ON K1Y 4K7, Canada
| | - Kelly Ross
- Summerland Research and Development Center, AAFC, Summerland, BC V0H 1Z0, Canada
| | - Moussa S Diarra
- Guelph Research and Development Center, Agriculture and Agri-Food Canada (AAFC), Guelph, ON N1G 5C9, Canada
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6
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Feng X, Li T, Zhu H, Liu L, Bi S, Chen X, Zhang H. Effects of challenge with Clostridium perfringens, Eimeria and both on ileal microbiota of yellow feather broilers. Front Microbiol 2022; 13:1063578. [PMID: 36532499 PMCID: PMC9754095 DOI: 10.3389/fmicb.2022.1063578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 11/17/2022] [Indexed: 10/07/2023] Open
Abstract
In the poultry industry worldwide, Clostridium perfringens has been causing major economic loss as it can cause necrotic enteritis (NE). The coccidial infection has been considered as the most important predisposing factor of NE caused by C. perfringens. In this study, we aimed to advance our knowledge on ileal microbiota of yellow feather broilers under C. perfringens and/or Eimeria challenge. Total of 80 healthy day old yellow feather broilers were randomly assigned to four groups including: Control, C. perfringens challenge group (C. Per), Eimeria challenge group (Cocc), and C. perfringens plus Eimeria challenge group (Comb). On day 14, the Cocc and Comb group broilers were orally gavaged 1 ml PBS solution containing 25,000 oocysts of Eimeria brunetti and 25,000 oocysts of Eimeria maxima. Starting on day 17, the C. Per and Comb group broilers were orally gavaged 10 mL of C. perfringens per bird (4 × 107 CFU/mL, ATCC® 13124™ Strain) every day for 6 days. 16S rRNA gene sequencing was performed on extracted DNA of ileal digesta samples. The results showed that C. perfringens alone did not affect the alpha diversity of ileal microbiome in yellow feather broilers but co-infection with Eimeria significantly decreased the diversity of ileal microbiota. C. perfringens and Eimeria challenge also decreased the relative abundance of beneficial bacteria including Bacteroidetes at the phylum level and Faecalibacterium at the genus level. At the species level, the relative abundance of Candidatus Arthromitus was significantly decreased in the Eimeria challenged groups. This microbial shift information of ileal microbiota under C. Perfringens and Eimeria challenge provide important reference data for the development of therapeutic approaches to necrotic enteritis in yellow-feather broiler chickens.
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Affiliation(s)
- Xin Feng
- School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Tonghao Li
- School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Hui Zhu
- School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Lidan Liu
- Foshan Zhengdian Biology Technology Co., Ltd., Foshan, China
| | - Shengqun Bi
- School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Xiaolin Chen
- School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Huihua Zhang
- School of Life Sciences and Engineering, Foshan University, Foshan, China
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7
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Lorenzo-Rebenaque L, Casto-Rebollo C, Diretto G, Frusciante S, Rodríguez JC, Ventero MP, Molina-Pardines C, Vega S, Marin C, Marco-Jiménez F. Examining the effects of Salmonella phage on the caecal microbiota and metabolome features in Salmonella-free broilers. Front Genet 2022; 13:1060713. [PMID: 36437955 PMCID: PMC9691336 DOI: 10.3389/fgene.2022.1060713] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 10/26/2022] [Indexed: 10/29/2023] Open
Abstract
Bacteriophages selectively infect and kill their target bacterial host, being a promising approach to controlling zoonotic bacteria in poultry production. To ensure confidence in its use, fundamental questions of safety and toxicity monitoring of phage therapy should be raised. Due to its high specificity, a minimal impact on the gut ecology is expected; however, more in-depth research into key parameters that influence the success of phage interventions has been needed to reach a consensus on the impact of bacteriophage therapy in the gut. In this context, this study aimed to investigate the interaction of phages with animals; more specifically, we compared the caecum microbiome and metabolome after a Salmonella phage challenge in Salmonella-free broilers, evaluating the role of the phage administration route. To this end, we employed 45 caecum content samples from a previous study where Salmonella phages were administered via drinking water or feed for 24 h from 4, 5 to 6-weeks-old broilers. High-throughput 16S rRNA gene sequencing showed a high level of similarity (beta diversity) but revealed a significant change in alpha diversity between broilers with Salmonella-phage administered in the drinking water and control. Our results showed that the phages affected only a few genera of the microbiota's structure, regardless of the administration route. Among these, we found a significant increase in Streptococcus and Sellimonas in the drinking water and Lactobacillus, Anaeroplasma and Clostridia_vadinBB60_group in the feed. Nevertheless, the LC-HRMS-based metabolomics analyses revealed that despite few genera were significantly affected, a substantial number of metabolites, especially in the phage administered in the drinking water were significantly altered (64 and 14 in the drinking water and feed groups, respectively). Overall, our study shows that preventive therapy with bacteriophages minimally alters the caecal microbiota but significantly impacts their metabolites, regardless of the route of administration.
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Affiliation(s)
- Laura Lorenzo-Rebenaque
- Department of Animal Production and Health, Veterinary Public Health and Food Science and Technology, Biomedical Research Institute, Faculty of Veterinary Medicine, Cardenal Herrera-CEU University, CEU Universities, Valencia, Spain
| | - Cristina Casto-Rebollo
- Institute of Science and Animal Technology, Universitat Politècnica de València, Valencia, Spain
| | - Gianfranco Diretto
- Italian Agency for New Technologies, Energy and Sustainable Development (ENEA), Biotechnology Laboratory, Centro Ricerche Casaccia, Santa Maria di Galeria, Rome, Italy
| | - Sarah Frusciante
- Italian Agency for New Technologies, Energy and Sustainable Development (ENEA), Biotechnology Laboratory, Centro Ricerche Casaccia, Santa Maria di Galeria, Rome, Italy
| | - Juan Carlos Rodríguez
- Microbiology Department, Balmis General University Hospital, Microbiology Division, Miguel Hernández University, ISABIAL, Alicante, Spain
| | - María-Paz Ventero
- Microbiology Department, Balmis General University Hospital, ISABIAL, Alicante, Spain
| | | | - Santiago Vega
- Department of Animal Production and Health, Veterinary Public Health and Food Science and Technology, Biomedical Research Institute, Faculty of Veterinary Medicine, Cardenal Herrera-CEU University, CEU Universities, Valencia, Spain
| | - Clara Marin
- Department of Animal Production and Health, Veterinary Public Health and Food Science and Technology, Biomedical Research Institute, Faculty of Veterinary Medicine, Cardenal Herrera-CEU University, CEU Universities, Valencia, Spain
| | - Francisco Marco-Jiménez
- Institute of Science and Animal Technology, Universitat Politècnica de València, Valencia, Spain
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8
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Ndotono EW, Khamis FM, Bargul JL, Tanga CM. Insights into the Gut Microbial Communities of Broiler Chicken Fed Black Soldier Fly Larvae- Desmodium-Based Meal as a Dietary Protein Source. Microorganisms 2022; 10:1351. [PMID: 35889070 PMCID: PMC9319420 DOI: 10.3390/microorganisms10071351] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 06/30/2022] [Accepted: 07/01/2022] [Indexed: 11/16/2022] Open
Abstract
The utilization of insect-based diets to improve gastrointestinal function and gut health in poultry is gaining global attention as a promising feed additive. The objective of this study was to determine the optimal inclusion level of the full-fat black soldier fly larvae (BSFL) and Desmodium intortum (DI) in broiler chicken diets and to evaluate their impact on the microbial community in the gut. The bacterial communities were characterized using Oxford nanopore sequencing of the full-length bacterial 16S rRNA gene. Four dietary treatments, T1 (25% DI + 75% BSFL), T2 (50% DI + 50% BSFL), T3 (75% DI + 25% BSFL) and T4 (100% fishmeal + 0% DI + BSFL), were fed to the broiler chickens for a period of 42 days. Out of the 395,034 classified reads analyzed, the most predominant phyla identified across all the four dietary treatments were Firmicutes (94%), Bacteroidetes (3%), and Proteobacteria (2%). The T1 diet showed the highest alpha diversity and richness according to the Chao1 and Shannon indices. Beta diversity assessment revealed a significant influence of diet on the abundance of the microbiome. There was an increase in beneficial lactic acid bacteria with increasing inclusion of BSFL in the diets. Our findings strongly support the inclusion of BSFL into poultry diet as a promising protein source to reshape the gut microbiota for improved gut health, immune response, and food safety.
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Affiliation(s)
- Evalyne W. Ndotono
- International Centre of Insect Physiology and Ecology (ICIPE), Nairobi P.O. Box 30772-00100, Kenya; (E.W.N.); (J.L.B.); (C.M.T.)
| | - Fathiya M. Khamis
- International Centre of Insect Physiology and Ecology (ICIPE), Nairobi P.O. Box 30772-00100, Kenya; (E.W.N.); (J.L.B.); (C.M.T.)
| | - Joel L. Bargul
- International Centre of Insect Physiology and Ecology (ICIPE), Nairobi P.O. Box 30772-00100, Kenya; (E.W.N.); (J.L.B.); (C.M.T.)
- Department of Biochemistry, Jomo Kenyatta University of Agriculture and Technology (JKUAT), Kiambu P.O. Box 62000-00200, Kenya
| | - Chrysantus M. Tanga
- International Centre of Insect Physiology and Ecology (ICIPE), Nairobi P.O. Box 30772-00100, Kenya; (E.W.N.); (J.L.B.); (C.M.T.)
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9
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Lactobacillus reuteri and Enterococcus faecium from Poultry Gut Reduce Mucin Adhesion and Biofilm Formation of Cephalosporin and Fluoroquinolone-Resistant Salmonella enterica. Animals (Basel) 2021; 11:ani11123435. [PMID: 34944212 PMCID: PMC8697943 DOI: 10.3390/ani11123435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/29/2021] [Accepted: 09/03/2021] [Indexed: 12/16/2022] Open
Abstract
Non-typhoidal Salmonella (NTS) can cause infection in poultry, livestock, and humans. Although the use of antimicrobials as feed additives is prohibited, the previous indiscriminate use and poor regulatory oversight in some parts of the world have resulted in increased bacterial resistance to antimicrobials, including cephalosporins and fluoroquinolones, which are among the limited treatment options available against NTS. This study aimed to isolate potential probiotic lactic acid bacteria (LAB) strains from the poultry gut to inhibit fluoroquinolone and cephalosporin resistant MDR Salmonella Typhimurium and S. Enteritidis. The safety profile of the LAB isolates was evaluated for the hemolytic activity, DNase activity, and antibiotic resistance. Based on the safety results, three possible probiotic LAB candidates for in vitro Salmonella control were chosen. Candidate LAB isolates were identified by 16S rDNA sequencing as Lactobacillus reuteri PFS4, Enterococcus faecium PFS13, and Enterococcus faecium PFS14. These strains demonstrated a good tolerance to gastrointestinal-related stresses, including gastric acid, bile, lysozyme, and phenol. In addition, the isolates that were able to auto aggregate had the ability to co-aggregate with MDR S. Typhimurium and S. Enteritidis. Furthermore, LAB strains competitively reduced the adhesion of pathogens to porcine mucin Type III in co-culture studies. The probiotic combination of the selected LAB isolates inhibited the biofilm formation of S. Typhimurium FML15 and S. Enteritidis FML18 by 90% and 92%, respectively. In addition, the cell-free supernatant (CFS) of the LAB culture significantly reduced the growth of Salmonella in vitro. Thus, L. reuteri PFS4, E. faecium PFS13, and E. faecium PFS 14 are potential probiotics that could be used to control MDR S. Typhimurium and S. Enteritidis in poultry. Future investigations are required to elucidate the in vivo potential of these probiotic candidates as Salmonella control agents in poultry and animal feed.
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10
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Yang Q, Liu J, Wang X, Robinson K, Whitmore MA, Stewart SN, Zhao J, Zhang G. Identification of an Intestinal Microbiota Signature Associated With the Severity of Necrotic Enteritis. Front Microbiol 2021; 12:703693. [PMID: 34489892 PMCID: PMC8418326 DOI: 10.3389/fmicb.2021.703693] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 07/27/2021] [Indexed: 12/12/2022] Open
Abstract
Necrotic enteritis (NE), an economically devastating disease of poultry caused by pathogenic Clostridium perfringens, is known to induce small intestinal lesions and dysbiosis. However, the intestinal microbes that are associated with NE severity are yet to be characterized. Here, we investigated the link between the ileal microbiota and disease severity in a chicken model of clinical NE using 16S rRNA gene sequencing. Our results indicated that richness and Shannon Index of the ileal microbiota were drastically reduced (p<0.01) as NE was exacerbated. While the relative abundance of C. perfringens increased from 0.02% in healthy chickens to 58–70% in chickens with severe infection, a majority of the ileal microbes were markedly diminished, albeit varying in their sensitivity to NE. Compositionally, a large group of ileal microbes showed a significant correlation with NE severity. Firmicutes, such as group A and B Lactobacillus, Lactobacillus reuteri, Subdoligranulum variabile, Mediterraneibacter, and Staphylococcus as well as two genera of Actinobacteria (Corynebacterium and Kocuria) and two highly related Cyanobacteria were progressively declined as NE was aggravated. Other Firmicutes, such as Weissella, Romboutsia, Kurthia, Cuneatibacter, Blautia, and Aerococcus, appeared much more sensitive and were rapidly abolished in chickens even with mild NE. On the other hand, Enterococcus cecorum and two Escherichia/Shigella species were only enriched in the ileal microbiota of chickens with extremely severe NE, while several other species such as Streptococcus gallolyticus and Bacteroides fragilis remained unaltered by NE. Functionally, secondary bile acid biosynthesis was predicted to be suppressed by NE, while biosynthesis of aromatic and branched-amino acids and metabolism of a majority of amino acids were predicted to be enhanced in the ileum of NE-afflicted chickens. These intestinal microbes showing a strong correlation with NE severity may provide important leads for the development of novel diagnostic or therapeutic approaches to NE and possibly other enteric diseases.
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Affiliation(s)
- Qing Yang
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, United States
| | - Jing Liu
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, United States
| | - Xiaofan Wang
- Department of Animal Science, University of Arkansas, Fayetteville, AR, United States
| | - Kelsy Robinson
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, United States
| | - Melanie A Whitmore
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, United States
| | - Sydney N Stewart
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, United States
| | - Jiangchao Zhao
- Department of Animal Science, University of Arkansas, Fayetteville, AR, United States
| | - Guolong Zhang
- Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, United States
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11
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Jeni RE, Dittoe DK, Olson EG, Lourenco J, Corcionivoschi N, Ricke SC, Callaway TR. Probiotics and potential applications for alternative poultry production systems. Poult Sci 2021; 100:101156. [PMID: 34077849 PMCID: PMC8181177 DOI: 10.1016/j.psj.2021.101156] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 03/17/2021] [Indexed: 12/24/2022] Open
Abstract
Concerns over animal welfare continue to be a critical component of law and policies associated with commercial food animal production. Social and market pressures are the driving forces behind the legislation and result in the change of poultry production management systems. As a result, the movement toward cage-free and aviary-based egg production systems has become standard practices. Cage-based systems being replaced by alternative methods that offer a suitable housing environment to meet or exceed poultry welfare needs and require different management, including the ban of antibiotics in poultry diets. For broiler production, pasture- raised and free-range management systems have become more popular. However, challenges remain from exposure to disease-causing organisms and foodborne pathogens in these environments. Consequently, probiotics can be supplemented in poultry diets as commercial feed additives. The present review discusses the impacts of these probiotics on the performance of alternative poultry production systems for improving food safety and poultry health by mitigating pathogenic organisms and improving egg and meat quality and production.
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Affiliation(s)
- Rim El Jeni
- Department of Animal and Dairy Science, University of Georgia, Athens, GA, USA
| | - Dana K Dittoe
- Department of Animal and Dairy Sciences, Meat Science and Animal Biologics Discovery Program, University of Wisconsin, Madison, WI, USA
| | - Elena G Olson
- Department of Animal and Dairy Sciences, Meat Science and Animal Biologics Discovery Program, University of Wisconsin, Madison, WI, USA
| | - Jeferson Lourenco
- Bacteriology Branch, Veterinary Sciences Division, Agri-Food and Biosciences Institute, Belfast, Northern Ireland, United Kingdom
| | - Nicolae Corcionivoschi
- Bacteriology Branch, Veterinary Sciences Division, Agri-Food and Biosciences Institute, Belfast, Northern Ireland, United Kingdom; Faculty of Bioengineering of Animal Resources, Banat University of Animal Sciences and Veterinary Medicine - King Michael I of Romania, Timisoara, Romania
| | - Steven C Ricke
- Department of Animal and Dairy Sciences, Meat Science and Animal Biologics Discovery Program, University of Wisconsin, Madison, WI, USA
| | - Todd R Callaway
- Faculty of Bioengineering of Animal Resources, Banat University of Animal Sciences and Veterinary Medicine - King Michael I of Romania, Timisoara, Romania.
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12
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Greppi A, Asare PT, Schwab C, Zemp N, Stephan R, Lacroix C. Isolation and Comparative Genomic Analysis of Reuterin-Producing Lactobacillus reuteri From the Chicken Gastrointestinal Tract. Front Microbiol 2020; 11:1166. [PMID: 32670217 PMCID: PMC7326114 DOI: 10.3389/fmicb.2020.01166] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 05/07/2020] [Indexed: 01/08/2023] Open
Abstract
Lactobacillus reuteri is a natural inhabitant of selected animal and human gastrointestinal tract (GIT). Certain strains have the capacity to transform glycerol to 3-hydroxypropionaldehyde (3-HPA), further excreted to form reuterin, a potent antimicrobial system. Reuterin-producing strains may be applied as a natural antimicrobial in feed to prevent pathogen colonization of animals, such as in chicken, and replace added antimicrobials. To date, only seven L. reuteri strains isolated from chicken have been characterized which limits phylogenetic studies and host-microbes interactions characterization. This study aimed to isolate L. reuteri strains from chicken GIT and to characterize their reuterin production and antimicrobial resistance (AMR) profiles using phenotypic and genetic methods. Seventy strains were isolated from faces, crops and ceca of six chicken from poultry farms and samples from slaughterhouse. Twenty-five strains were selected for further characterization. Draft genomes were generated for the new 25 isolates and integrated into a phylogenetic tree of 40 strains from different hosts. Phylogenetic analysis based on gene content as well as on core genomes showed grouping of the selected 25 L. reuteri chicken isolates within the poultry/human lineage VI. Strains harboring pdu-cob-cbi-hem genes (23/25) produced between 156 mM ± 11 and 330 mM ± 14 3-HPA, from 600 mM of glycerol, in the conditions of the test. All 25 chicken strains were sensitive to cefotaxime (MIC between 0.016 and 1 μg/mL) and penicillin (MIC between 0.02 and 4 μg/mL). Akin to the reference strains DSM20016 and SD2112, the novel isolates were resistant to penicillin, possibly associated with identified point mutations in ponA, pbpX, pbpF and pbpB. All strains resistant to erythromycin (4/27) carried the ermB gene, and it was only present in chicken strains. All strains resistant to tetracycline (5/27) harbored tetW gene. This study confirms the evolutionary history of poultry/human lineage VI and identifies pdu-cob-cbi-hem as a frequent trait but not always present in this lineage. L. reuteri chicken strains producing high 3-HPA yield may have potential to prevent enteropathogen colonization of chicken.
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Affiliation(s)
- Anna Greppi
- Institute of Food, Nutrition and Health, Laboratory of Food Biotechnology, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
| | - Paul T. Asare
- Institute of Food, Nutrition and Health, Laboratory of Food Biotechnology, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
| | - Clarissa Schwab
- Institute of Food, Nutrition and Health, Laboratory of Food Biotechnology, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
| | - Niklaus Zemp
- Genetic Diversity Centre, Department of Environmental Systems Sciences, ETH Zurich, Zurich, Switzerland
| | - Roger Stephan
- Institute for Food Safety and Hygiene, University of Zurich, Zurich, Switzerland
| | - Christophe Lacroix
- Institute of Food, Nutrition and Health, Laboratory of Food Biotechnology, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
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13
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Xie S, Zhao S, Jiang L, Lu L, Yang Q, Yu Q. Lactobacillus reuteri Stimulates Intestinal Epithelial Proliferation and Induces Differentiation into Goblet Cells in Young Chickens. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:13758-13766. [PMID: 31789514 DOI: 10.1021/acs.jafc.9b06256] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Probiotics, such as Lactobacillus, have been proven to be effective in maintaining intestinal homeostasis. The modulatory effect of Lactobacillus on intestinal epithelial development in early life is still unclear. In this study, Lactobacillus isolates with good probiotic abilities were screened and orally administered to detect their regulatory effect on intestinal development in chickens. L. reuteri 22 was isolated from chickens and chosen for subsequent chicken experiments due to its strong acid and bile salt resistance and ability to adhere to epithelial cells. The 3-day-old chickens were orally administrated with 108 CFU L. reuteri 22 for consecutive 7 days. L. reuteri 22 increased Lgr5 mRNA expression (3.23 ± 0.40, P = 0.001) and activated the Wnt/β-catenin signaling pathway, with increasing expression of proliferating cell nuclear antigen (PCNA) (49.27 ± 9.81, P = 0.021) to support the proliferation of chicken intestinal epithelial cells. Moreover, L. reuteri 22 also inhibited the Notch signaling pathway to induce intestinal stem cell differentiation into goblet cells with increased mucin 2 (Muc-2) expression (1.72 ± 0.34, P = 0.047). L. reuteri 22 significantly enhanced lysozyme mRNA expression (2.32 ± 0.55, P = 0.019) to improve intestinal innate mucosal immunity. This study demonstrated that L. reuteri administration could regulate chicken intestinal epithelium development to ensure the function of the intestinal mucosal barrier, which is beneficial for newborn animals.
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Affiliation(s)
- Shuang Xie
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine , Nanjing Agricultural University , Weigang 1 , Nanjing , Jiangsu 210095 , P.R. China
| | - Shiyi Zhao
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine , Nanjing Agricultural University , Weigang 1 , Nanjing , Jiangsu 210095 , P.R. China
| | - Lan Jiang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine , Nanjing Agricultural University , Weigang 1 , Nanjing , Jiangsu 210095 , P.R. China
| | - Linhao Lu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine , Nanjing Agricultural University , Weigang 1 , Nanjing , Jiangsu 210095 , P.R. China
| | - Qian Yang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine , Nanjing Agricultural University , Weigang 1 , Nanjing , Jiangsu 210095 , P.R. China
| | - Qinghua Yu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine , Nanjing Agricultural University , Weigang 1 , Nanjing , Jiangsu 210095 , P.R. China
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14
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Ripolles-Avila C, García-Hernández N, Cervantes-Huamán BH, Mazaheri T, Rodríguez-Jerez JJ. Quantitative and Compositional Study of Monospecies Biofilms of Spoilage Microorganisms in the Meat Industry and Their Interaction in the Development of Multispecies Biofilms. Microorganisms 2019; 7:E655. [PMID: 31817368 PMCID: PMC6956169 DOI: 10.3390/microorganisms7120655] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 11/24/2019] [Accepted: 11/25/2019] [Indexed: 11/17/2022] Open
Abstract
Food spoilage is a serious problem in the food industry, since it leads to significant economic losses. One of its main causes is the cross-contamination of food products from industrial surfaces. Three spoilage bacterial species which are highly present in meat and the gastrointestinal tract of chickens were selected: Pseudomonas fragi, Leuconostoc gasicomitatum, and Lactobacillus reuteri. The dual aim was to determine their ability to form monospecies biofilms and to examine how they interact when they coexist together. To do so, mature monospecies biofilms were produced statically for seven days at a temperature of 30 °C. L. gasicomitatum was also used to investigate the behavior of P. fragi and L. reuteri in the formation of multispecies biofilms. The structure and composition of the monospecies biofilms were evaluated by direct epifluorescence microscopy, and the multispecies biofilms were evaluated by plate counting. Both L. gasicomitatum and L. reuteri were able to form biofilms, with counts of approximately 7 Log CFU/cm2 and a defined structure. However, P. fragi obtained counts to the order of 4 Log CFU/cm2, which is significantly different from the previous species (P < 0.05), and it had no network of cell conglomerates. The content of the L. gasicomitatum and L. reuteri biofilm matrices were 70-80% protein, unlike P. fragi, which presented a higher polysaccharide content (P < 0.05). In the multispecies biofilms, the presence of P. fragi did not affect the growth of L. gasicomitatum, which remained at between 5.76 to 6.1 Log CFU/cm2. However, L. reuteri was able to displace L. gasicomitatum growth after 24 h of coexisting in a mixed biofilm, presenting differences in counts of approximately 2 Log CFU/cm2. The study of the biofilms constructed by food industry resident microbiota can help to understand the ecological relations that exist between species, characterize them, and propose strategies to eliminate them. The name of genes and species should be written in italic.
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Affiliation(s)
| | | | | | | | - José Juan Rodríguez-Jerez
- Area of Human Nutrition and Food Science, Department of Food and Animal Science, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain; (C.R.-A.); (N.G.-H.); (B.H.C.-H.); (T.M.)
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15
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Aziz G, Fakhar H, Rahman SU, Tariq M, Zaidi A. An assessment of the aggregation and probiotic characteristics of Lactobacillus species isolated from native (desi) chicken gut. J APPL POULTRY RES 2019. [DOI: 10.3382/japr/pfz042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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16
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Abstract
The most commonly used probiotic bacteria belong to the genus Lactobacillus, being regarded as beneficial for poultry health and production. However, commercial probiotics do not always ensure both expected effects. In order to improve the utility properties of new preparations, the selection of new probiotic candidates should be made on the basis of the performance of the species within the poultry digestive tract. The aim of this study was to isolate and identify lactobacilli from poultry intestines, and to select probiotic candidates for subsequent in vivo trials. Digesta from 18 poultry specimens were collected, serially diluted, plated onto Wilkins-Chalgren anaerobe agar supplemented with 30% of rumen fluid and onto De Man, Rogosa and Sharpe agar plates, and incubated at 37 °C for 48 h under anaerobic conditions. Isolated colonies were subjected to Gram staining and catalase reaction. They were then pre-identified using matrix-assisted laser desorption ionization (MALDI) time of flight (TOF) mass spectrometry (MS). Forty-four Lactobacillus strains belonging to 16 species were identified and subjected to evaluations of survival under simulated gastrointestinal conditions, autoaggregation and hydrophobicity. Most of the screened Lactobacillus reuteri strains as well as individual strains of L. acidophilus, L. salivarius, L. saerimneri, and L. vaginalis showed high survival rates under gastrointestinal tract conditions and good surface properties. The results suggest their potential for further testing as probiotic candidates in in vivo trials.
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17
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A Preliminary Study on Probiotic Characteristics of Sporosarcina spp. for Poultry Applications. Curr Microbiol 2019; 76:448-461. [DOI: 10.1007/s00284-019-01647-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 02/06/2019] [Indexed: 11/28/2022]
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18
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Huang T, Gao B, Chen WL, Xiang R, Yuan MG, Xu ZH, Peng XY. Temporal Effects of High Fishmeal Diet on Gut Microbiota and Immune Response in Clostridium perfringens-Challenged Chickens. Front Microbiol 2018; 9:2754. [PMID: 30483244 PMCID: PMC6243065 DOI: 10.3389/fmicb.2018.02754] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 10/29/2018] [Indexed: 12/30/2022] Open
Abstract
Necrotic enteritis (NE) caused by Clostridium perfringens is responsible for huge financial losses in the poultry industry annually. A diet highly supplemented with fishmeal is one factor predisposing chickens to the development of clinical NE. However, the effects of fishmeal-rich diets on the gut microbiota and immune response in chickens with C. perfringens challenge over the long-term are not well-understood. Here, a chicken NE model was established in which chickens were fed high fishmeal diet and subsequently infected with C. perfringens (FM/CP). Two control groups of chickens, one that was not infected and had a high fishmeal feeding (FM) and another group only infected with C. perfringens with basic diets (CP), were used as comparators. We analyzed the gut microbiota and immune response of the three groups at the age of 20, 24 [1 day post-infection (dpi)] and 30 days (7 dpi) using 16S rDNA sequencing and real-time PCR, respectively. We found that the composition of the gut microbiota had significant shifted in both the CP and FM/CP groups, although the CP group did not have intestinal lesions. The structure of the gut microbiota in C. perfringens-challenged chickens, independent of a high fishmeal diet, had the tendency to return to their non-infection state if the chickens no longer received C. perfringens challenge. Gut microbiota variation with time in challenged chickens with high fishmeal diet feeding was superimposed upon that of non-infected chickens with high fishmeal feeding. For the immune response, the relative expression of IL-8 in the ileum was significantly higher in infected chickens independent of high fishmeal feeding than in non-infected chickens. However, the expression of alpha 1-acid glycoprotein (AGP) and serum amyloid A (SAA) genes in chicken liver were significantly increased in FM/CP compared to the other groups. In conclusion, high fishmeal feeding induced significant changes to the structure of chicken gut microbiota over time and such changes provided an opening for C. perfringens infection to progress to NE. The relative expression of AGP and SAA in liver tissue may be used as diagnostic biomarkers for poultry NE but such an indication requires further investigation.
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Affiliation(s)
- Ting Huang
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China.,Key Laboratory of Livestock Disease Prevention of Guangdong Province, Guangzhou, China.,Scientific Observing and Experimental Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Guangzhou, China.,Chinese Traditional Medicine Engineering Technology Research Center of Guangdong Province, Guangzhou, China
| | - Biao Gao
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China.,Key Laboratory of Livestock Disease Prevention of Guangdong Province, Guangzhou, China.,Scientific Observing and Experimental Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Guangzhou, China.,Chinese Traditional Medicine Engineering Technology Research Center of Guangdong Province, Guangzhou, China
| | - Wen-Lu Chen
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China.,Key Laboratory of Livestock Disease Prevention of Guangdong Province, Guangzhou, China.,Scientific Observing and Experimental Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Guangzhou, China.,Chinese Traditional Medicine Engineering Technology Research Center of Guangdong Province, Guangzhou, China
| | - Rong Xiang
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China.,Key Laboratory of Livestock Disease Prevention of Guangdong Province, Guangzhou, China.,Scientific Observing and Experimental Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Guangzhou, China.,Chinese Traditional Medicine Engineering Technology Research Center of Guangdong Province, Guangzhou, China
| | - Ming-Gui Yuan
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China.,Key Laboratory of Livestock Disease Prevention of Guangdong Province, Guangzhou, China.,Scientific Observing and Experimental Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Guangzhou, China.,Chinese Traditional Medicine Engineering Technology Research Center of Guangdong Province, Guangzhou, China
| | - Zhi-Hong Xu
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China.,Key Laboratory of Livestock Disease Prevention of Guangdong Province, Guangzhou, China.,Scientific Observing and Experimental Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Guangzhou, China.,Chinese Traditional Medicine Engineering Technology Research Center of Guangdong Province, Guangzhou, China
| | - Xin-Yu Peng
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China.,Key Laboratory of Livestock Disease Prevention of Guangdong Province, Guangzhou, China.,Scientific Observing and Experimental Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Guangzhou, China.,Chinese Traditional Medicine Engineering Technology Research Center of Guangdong Province, Guangzhou, China
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19
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An BK, Kim JH, Zheng L, Moon BH, Lee KW. Effects of dietary supplementation with detoxified Rhus verniciflua sap on egg production, yolk lipid and intestinal microflora in laying hens. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2017; 31:86-90. [PMID: 28728393 PMCID: PMC5756928 DOI: 10.5713/ajas.17.0156] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 04/05/2017] [Accepted: 05/08/2017] [Indexed: 11/27/2022]
Abstract
Objective This study was conducted to investigate the effects of dietary detoxified Rhus verniciflua sap (RVS) on production performance, egg quality, lipid fractions of egg yolk, liver and serum, and the profile of cecal microflora in laying hens. Methods Two hundred 52-week-old Hy-Line Brown layers were randomly divided into 4 groups with 5 replicates per group (2 hens per cage, 5 cages per replicate) and were provided with one of 4 experimental diets containing 0%, 0.05%, 0.1%, or 0.2% RVS, for 6 weeks. Due to unequal intervals of RVS doses, the interactive matrix language procedure of the SAS program was used to correct the contrast coefficients of orthogonal polynomials. Results There were no differences in feed intake and egg weight among the groups. Egg production increased (linearly and quadratically, p<0.05) with increasing levels of RVS. Eggshell thickness increased (linear, p<0.05) as the level of RVS in diets increased. The levels of blood cholesterol and activities of glutamic-oxaloacetic transaminase and glutamic-pyruvic transaminase were not altered by dietary treatments. Increasing level of RVS increased (linear, p<0.05) the populations of cecal lactic acid bacteria. The content of yolk cholesterol decreased (linear, p< 0.05) with increasing levels of dietary RVS, although there were no significant differences in each lipid fraction of the liver. Conclusion This study indicates that dietary RVS could improve laying performance and eggshell quality, and affect cecal lactic acid bacteria in a dose-dependent manner.
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Affiliation(s)
- Byoung-Ki An
- Laboratory of Poultry Science, Department of Animal Science and Technology, Konkuk University, Seoul 05029, Korea
| | - Je-Hun Kim
- Laboratory of Poultry Science, Department of Animal Science and Technology, Konkuk University, Seoul 05029, Korea
| | - Lan Zheng
- Laboratory of Poultry Science, Department of Animal Science and Technology, Konkuk University, Seoul 05029, Korea
| | | | - Kyung-Woo Lee
- Laboratory of Poultry Science, Department of Animal Science and Technology, Konkuk University, Seoul 05029, Korea
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