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Zigovski G, Bez ICC, Garrido LFC, Rodrigues CC, de Oliveira ACDF, Rupolo PE, de Azevedo LB, Hernandez EME, Genova JL, Weber SH, Carvalho PLDO, Costa LB. Ultra-diluted complex additive in the diet reveals benefits in the intestinal tract of nursery-phase piglets. Vet Res Commun 2024:10.1007/s11259-024-10422-z. [PMID: 38801493 DOI: 10.1007/s11259-024-10422-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: 10/31/2023] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
This study aimed to assess an ultra-diluted (UD) complex, as a replacement for an antimicrobial growth promoter in diets, on growth performance, intestinal health, and inflammatory response of nursery piglets. The experiment lasted 37 days and involved 126 animals weaned at 21 ± 1.3 d, with an initial body weight of 5.62 ± 1.16 kg. Piglets were assigned to six dietary treatments in a randomized block design with seven replicates and three piglets per pen as experimental unit. The treatments were: positive control (PC)- basal diet + 120 mg/kg of chlorohydroxyquinoline; negative control (NC)- basal diet without additives; and NC containing 4.5; 6.0; 7.5 or 9.0 kg of UD additive/ton diet. Performance data were calculated, and daily diarrhea was observed. Blood samples were collected for hematological analysis. At the end of the experiment, one animal per pen was slaughtered for organ weighing, pH, and the collection of intestinal samples for histopathology. Feces and cecal contents were collected for microbiological and antibiogram analyses. There was no difference in the performance between the treatments. Throughout the study, UD levels were equal to those of PC for diarrhea occurrence. Higher levels of UD complex led to higher total leukocyte counts. The 4.5 treatment showed a reduction in total and thermotolerant Enterobacteriaceae populations in piglet feces and an increase in lactic acid bacteria compared to PC. All treatments resulted in fewer duodenal histopathological alterations than those in the NC group. The use of UD additives, especially at 4.5 kg/ton, is a good alternative to chlorohydroxyquinoline in piglet diets.
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Affiliation(s)
- Gustavo Zigovski
- School of Medicine and Life Sciences, Graduate Program in Animal Science, Pontifícia Universidade Católica do Paraná, Curitiba, 80215-901, PR, Brazil
| | - Isabela Cristina Colaço Bez
- School of Medicine and Life Sciences, Graduate Program in Animal Science, Pontifícia Universidade Católica do Paraná, Curitiba, 80215-901, PR, Brazil
| | - Luís Fernando Costa Garrido
- School of Medicine and Life Sciences, Graduate Program in Animal Science, Pontifícia Universidade Católica do Paraná, Curitiba, 80215-901, PR, Brazil
| | - Caroline Cintra Rodrigues
- School of Medicine and Life Sciences, Graduate Program in Animal Science, Pontifícia Universidade Católica do Paraná, Curitiba, 80215-901, PR, Brazil
| | | | - Paulo Evaristo Rupolo
- Animal Science Department, State University of Western Paraná, 85960-000, Marechal Cândido Rondon, PR, Brazil
| | - Liliana Bury de Azevedo
- Animal Science Department, State University of Western Paraná, 85960-000, Marechal Cândido Rondon, PR, Brazil
| | - Elmer Modesto Elvir Hernandez
- School of Medicine and Life Sciences, Graduate Program in Animal Science, Pontifícia Universidade Católica do Paraná, Curitiba, 80215-901, PR, Brazil
| | - Jansller Luiz Genova
- Animal Science Department, Federal University of Viçosa, Viçosa, 36570-900, MG, Brazil
| | - Saulo Henrique Weber
- School of Medicine and Life Sciences, Graduate Program in Animal Science, Pontifícia Universidade Católica do Paraná, Curitiba, 80215-901, PR, Brazil
| | | | - Leandro Batista Costa
- School of Medicine and Life Sciences, Graduate Program in Animal Science, Pontifícia Universidade Católica do Paraná, Curitiba, 80215-901, PR, Brazil.
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Ortiz Sanjuán JM, Argüello H, Cabrera-Rubio R, Crispie F, Cotter PD, Garrido JJ, Ekhlas D, Burgess CM, Manzanilla EG. Effects of removing in-feed antibiotics and zinc oxide on the taxonomy and functionality of the microbiota in post weaning pigs. Anim Microbiome 2024; 6:18. [PMID: 38627869 PMCID: PMC11022352 DOI: 10.1186/s42523-024-00306-7] [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: 06/26/2023] [Accepted: 03/31/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Post weaning diarrhoea (PWD) causes piglet morbidity and mortality at weaning and is a major driver for antimicrobial use worldwide. New regulations in the EU limit the use of in-feed antibiotics (Ab) and therapeutic zinc oxide (ZnO) to prevent PWD. New approaches to control PWD are needed, and understanding the role of the microbiota in this context is key. In this study, shotgun metagenome sequencing was used to describe the taxonomic and functional evolution of the faecal microbiota of the piglet during the first two weeks post weaning within three experimental groups, Ab, ZnO and no medication, on commercial farms using antimicrobials regularly in the post weaning period. RESULTS Diversity was affected by day post weaning (dpw), treatment used and diarrhoea but not by the farm. Microbiota composition evolved towards the dominance of groups of species such as Prevotella spp. at day 14dpw. ZnO inhibited E. coli overgrowth, promoted higher abundance of the family Bacteroidaceae and decreased Megasphaera spp. Animals treated with Ab exhibited inconsistent taxonomic changes across time points, with an overall increase of Limosilactobacillus reuteri and Megasphaera elsdenii. Samples from non-medicated pigs showed virulence-related functions at 7dpw, and specific ETEC-related virulence factors were detected in all samples presenting diarrhoea. Differential microbiota functions of pigs treated with ZnO were related to sulphur and DNA metabolism, as well as mechanisms of antimicrobial and heavy metal resistance, whereas Ab treated animals exhibited functions related to antimicrobial resistance and virulence. CONCLUSION Ab and particularly ZnO maintained a stable microbiota composition and functionality during the two weeks post weaning, by limiting E. coli overgrowth, and ultimately preventing microbiota dysbiosis. Future approaches to support piglet health should be able to reproduce this stable gut microbiota transition during the post weaning period, in order to maintain optimal gut physiological and productive conditions.
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Affiliation(s)
- Juan M Ortiz Sanjuán
- Pig Development Department, Teagasc Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland.
- Grupo de Genómica y Mejora Animal, Departamento de Genética, Facultad de Veterinaria, Universidad de Córdoba, Córdoba, Spain.
| | - Héctor Argüello
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, León, Spain
| | - Raúl Cabrera-Rubio
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland
- APC Microbiome Institute, University College Cork, Co. Cork, Ireland
| | - Fiona Crispie
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland
- APC Microbiome Institute, University College Cork, Co. Cork, Ireland
| | - Paul D Cotter
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland
- APC Microbiome Institute, University College Cork, Co. Cork, Ireland
- VistaMilk SFI Research Centre, Fermoy, Co. Cork, Ireland
| | - Juan J Garrido
- Grupo de Genómica y Mejora Animal, Departamento de Genética, Facultad de Veterinaria, Universidad de Córdoba, Córdoba, Spain
| | - Daniel Ekhlas
- Pig Development Department, Teagasc Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland
- Department of Food Safety, Teagasc Food Research Centre, Ashtown, Dublin, Ireland
- School of Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - Catherine M Burgess
- Department of Food Safety, Teagasc Food Research Centre, Ashtown, Dublin, Ireland
| | - Edgar G Manzanilla
- Pig Development Department, Teagasc Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland
- School of Veterinary Medicine, University College Dublin, Dublin, Ireland
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Law K, Garcia ERM, Hastad C, Murray D, Urriola PE, Gomez A. Interactions between maternal parity and feed additives drive the composition of pig gut microbiomes in the post-weaning period. J Anim Sci Biotechnol 2024; 15:33. [PMID: 38431668 PMCID: PMC10909285 DOI: 10.1186/s40104-024-00993-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 01/07/2024] [Indexed: 03/05/2024] Open
Abstract
BACKGROUND Nursery pigs undergo stressors in the post-weaning period that result in production and welfare challenges. These challenges disproportionately impact the offspring of primiparous sows compared to those of multiparous counterparts. Little is known regarding potential interactions between parity and feed additives in the post-weaning period and their effects on nursery pig microbiomes. Therefore, the objective of this study was to investigate the effects of maternal parity on sow and offspring microbiomes and the influence of sow parity on pig fecal microbiome and performance in response to a prebiotic post-weaning. At weaning, piglets were allotted into three treatment groups: a standard nursery diet including pharmacological doses of Zn and Cu (Con), a group fed a commercial prebiotic only (Preb) based on an Aspergillus oryzae fermentation extract, and a group fed the same prebiotic plus Zn and Cu (Preb + ZnCu). RESULTS Although there were no differences in vaginal microbiome composition between primiparous and multiparous sows, fecal microbiome composition was different (R2 = 0.02, P = 0.03). The fecal microbiomes of primiparous offspring displayed significantly higher bacterial diversity compared to multiparous offspring at d 0 and d 21 postweaning (P < 0.01), with differences in community composition observed at d 21 (R2 = 0.03, P = 0.04). When analyzing the effects of maternal parity within each treatment, only the Preb diet triggered significant microbiome distinctions between primiparous and multiparous offspring (d 21: R2 = 0.13, P = 0.01; d 42: R2 = 0.19, P = 0.001). Compositional differences in pig fecal microbiomes between treatments were observed only at d 21 (R2 = 0.12, P = 0.001). Pigs in the Con group gained significantly more weight throughout the nursery period when compared to those in the Preb + ZnCu group. CONCLUSIONS Nursery pig gut microbiome composition was influenced by supplementation with an Aspergillus oryzae fermentation extract, with varying effects on performance when combined with pharmacological levels of Zn and Cu or for offspring of different maternal parity groups. These results indicate that the development of nursery pig gut microbiomes is shaped by maternal parity and potential interactions with the effects of dietary feed additives.
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Affiliation(s)
- Kayla Law
- Department of Animal Science, University of Minnesota, 1364 Eckles Avenue, Saint Paul, MN, 55108, USA
| | | | - Chad Hastad
- New Fashion Pork, 164 Industrial Parkway, Jackson, MN, 56143, USA
| | - Deborah Murray
- New Fashion Pork, 164 Industrial Parkway, Jackson, MN, 56143, USA
| | - Pedro E Urriola
- Department of Animal Science, University of Minnesota, 1364 Eckles Avenue, Saint Paul, MN, 55108, USA
| | - Andres Gomez
- Department of Animal Science, University of Minnesota, 1364 Eckles Avenue, Saint Paul, MN, 55108, USA.
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Ortiz Sanjuán JM, Manzanilla EG, Cabrera-Rubio R, Crispie F, Cotter PD, Garrido JJ, Ekhlas D, O’Neill L, Argüello H. Fine-tuning of post-weaning pig microbiome structure and functionality by in-feed zinc oxide and antibiotics use. Front Cell Infect Microbiol 2024; 14:1354449. [PMID: 38384302 PMCID: PMC10879578 DOI: 10.3389/fcimb.2024.1354449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 01/22/2024] [Indexed: 02/23/2024] Open
Abstract
Introduction Post-weaning diarrhoea (PWD) is a multifactorial disease that affects piglets after weaning, contributing to productive and economic losses. Its control includes the use of in-feed prophylactic antibiotics and therapeutic zinc oxide (ZnO), treatments that, since 2022, are no longer permitted in the European Union due to spread of antimicrobial resistance genes and pollution of soil with heavy metals. A dysbiosis in the microbiota has been suggested as a potential risk factor of PWD onset. Understanding pig's microbiota development around weaning and its changes in response to ZnO and antibiotics is crucial to develop feasible alternatives to prophylactic and metaphylactic antimicrobial use. Methods This study used shotgun metagenomic sequencing to investigate the environmental and faecal microbiota on 10 farms using (Treated) or not using (ZnO-free) in-feed antibiotics and ZnO during the first 14 days post-weaning (dpw). Environmental samples from clean pens were collected at weaning day (0dpw), and faecal samples at 0, 7 and 14dpw. Diarrhoeic faecal samples were collected at 7dpw when available. Results The analysis of data revealed that the faecal microbiota composition and its functionality was impacted by the sampling time point (microbiota maturation after weaning) but not by the farm environment. Treatment with antibiotics and ZnO showed no effects on diversity indices while the analyses of microbiota taxonomic and functional profiles revealed increased abundance of taxa and metabolic functions associated with Phascolarctobacterium succinatutens or different species of Prevotella spp. on the Treated farms, and with Megasphaera elsdenii and Escherichia coli on the ZnO-free farms. The analysis of diarrhoea samples revealed that the treatment favoured the microbiota transition or maturation from 0dpw to 14dpw in Treated farms, resembling the composition of healthy animals, when compared to diarrhoea from ZnO-free farms, which were linked in composition to 0dpw samples. Discussion The results provide a comprehensive overview of the beneficial effects of ZnO and antibiotics in PWD in the microbiota transition after weaning, preventing the overgrowth of pathogens such as pathogenic E. coli and revealing the key aspects in microbiota maturation that antibiotics or ZnO alternatives should fulfil.
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Affiliation(s)
- Juan M. Ortiz Sanjuán
- Pig Development Department, Teagasc Grassland Research and Innovation Centre, Moorepark, Cork, Ireland
- Grupo de Genómica y Mejora Animal, Departamento de Genética, Facultad de Veterinaria, Universidad de Córdoba, Córdoba, Spain
| | - Edgar G. Manzanilla
- Pig Development Department, Teagasc Grassland Research and Innovation Centre, Moorepark, Cork, Ireland
- School of Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - Raúl Cabrera-Rubio
- Teagasc Food Research Centre, Moorepark, Cork, Ireland
- APC Microbiome Institute Science Foundation Ireland (SFI) Research Centre, University College Cork, Cork, Ireland
| | - Fiona Crispie
- Teagasc Food Research Centre, Moorepark, Cork, Ireland
- APC Microbiome Institute Science Foundation Ireland (SFI) Research Centre, University College Cork, Cork, Ireland
| | - Paul D. Cotter
- Teagasc Food Research Centre, Moorepark, Cork, Ireland
- APC Microbiome Institute Science Foundation Ireland (SFI) Research Centre, University College Cork, Cork, Ireland
- VistaMilk Science Foundation Ireland (SFI) Research Centre, Cork, Ireland
| | - Juan J. Garrido
- Grupo de Genómica y Mejora Animal, Departamento de Genética, Facultad de Veterinaria, Universidad de Córdoba, Córdoba, Spain
| | - Daniel Ekhlas
- Pig Development Department, Teagasc Grassland Research and Innovation Centre, Moorepark, Cork, Ireland
- School of Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - Lorcan O’Neill
- Pig Development Department, Teagasc Grassland Research and Innovation Centre, Moorepark, Cork, Ireland
- School of Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - Héctor Argüello
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de León, León, Spain
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Ming D, Wang J, Yin C, Chen Y, Li Y, Sun W, Pi Y, Monteiro A, Li X, Jiang X. Porous Zinc Oxide and Plant Polyphenols as a Replacement for High-Dose Zinc Oxide on Growth Performance, Diarrhea Incidence, Intestinal Morphology and Microbial Diversity of Weaned Piglets. Animals (Basel) 2024; 14:523. [PMID: 38338166 PMCID: PMC10854673 DOI: 10.3390/ani14030523] [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: 01/01/2024] [Revised: 01/27/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024] Open
Abstract
The aim of this experiment is to evaluate the effects of adding porous zinc oxide, plant polyphenols, and their combination to diets without antibiotics and high-dose zinc oxide on the growth performance, diarrhea incidence, intestinal morphology, and microbial diversity of weaned piglets. A total of 150 Duroc × Landrace × Large White weaned piglets were allocated to one of five diets in a randomized complete block design with six replicates and five piglets per replicate. The experimental period was 42 d, divided into two feeding stages: pre-starter (0-14 d) and starter (14-42 d). In the pre-starter stage, the negative control group (NC) was fed a basal diet, the positive control group (PC) was fed a basal diet with 2000 mg/kg of zinc oxide, the porous zinc oxide group (PZ) was fed a basal diet with 500 mg/kg of porous zinc oxide, the plant polyphenol group (PP) was fed a basal diet with 1500 mg/kg of plant polyphenols, and the combination group (PZ + PP) was fed a basal diet with 500 mg/kg of porous zinc oxide and 1500 mg/kg of plant polyphenols. In the starter stage, the NC, PC, and PZ groups were fed a basal diet, while the PP and PZ + PP groups were fed a basal diet with 1000 mg/kg of plant polyphenols. The results showed that, (1) compared with the PZ group, adding plant polyphenols to the diet showed a trend of increasing the ADFI of weaned piglets from 14 to 28 d (p = 0.099). From days 28 to 42 and days 0 to 42, porous zinc oxide and the combination of porous zinc oxide and plant polyphenols added to the control diet improved the FCR to the level observed in pigs fed the PC diet. (2) Dietary PZ + PP tended to increase the jejunal villus height (VH) of weaned piglets (p = 0.055), and significantly increased the villus-height-to-crypt-depth ratio compared to the NC group (p < 0.05). (3) Compared with the NC group, PZ supplementation decreased the relative abundance of Firmicutes and increased the relative abundance of Bacteroidetes, and the relative abundance of Lactobacillus in the PZ and PZ + PP groups were both increased. In conclusion, porous zinc oxide and plant polyphenols may have synergistic effects in modulating intestinal health in weaned piglets and be a potential alternative to high-dose zinc oxide.
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Affiliation(s)
- Dongxu Ming
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (D.M.); (J.W.); (C.Y.); (Y.L.); (W.S.); (Y.P.)
- Key Laboratory of Feed Synthetic Biotechnology of Ministry of Agriculture and Rural Affairs, Ganzhou 341000, China
| | - Jizhe Wang
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (D.M.); (J.W.); (C.Y.); (Y.L.); (W.S.); (Y.P.)
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- Sanya Institute of China Agricultural University, Sanya 572000, China
| | - Chenggang Yin
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (D.M.); (J.W.); (C.Y.); (Y.L.); (W.S.); (Y.P.)
| | - Yiqun Chen
- Animine, 74960 Annecy, France; (Y.C.); (A.M.)
| | - Yanpin Li
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (D.M.); (J.W.); (C.Y.); (Y.L.); (W.S.); (Y.P.)
| | - Wenjuan Sun
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (D.M.); (J.W.); (C.Y.); (Y.L.); (W.S.); (Y.P.)
| | - Yu Pi
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (D.M.); (J.W.); (C.Y.); (Y.L.); (W.S.); (Y.P.)
| | | | - Xilong Li
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (D.M.); (J.W.); (C.Y.); (Y.L.); (W.S.); (Y.P.)
| | - Xianren Jiang
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (D.M.); (J.W.); (C.Y.); (Y.L.); (W.S.); (Y.P.)
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Christensen B, Zhu C, Niazy M, McCullough T, Ricker N, Huber L. Partial replacement of soybean meal with full-fat black soldier fly larvae meal in plant-based nursery diets did not influence fecal Escherichia coli colony forming units or improve fecal consistency when pigs were weaned into non-disinfected pens. Transl Anim Sci 2023; 7:txad121. [PMID: 37965427 PMCID: PMC10642758 DOI: 10.1093/tas/txad121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 10/18/2023] [Indexed: 11/16/2023] Open
Abstract
At weaning, one hundred pigs (21 d of age; 6.96 ± 0.23 kg BW) were used to determine the effect of partially replacing soybean meal (SBM) in corn- and SBM-based nursery diets on growth performance, fecal scores, Escherichia coli (E. coli) colony forming units (CFU), and cecal mucosal microbial profile when weaned into non-disinfected nursery pens. Pens were randomly assigned to one of four dietary treatments (n = 5): high-complexity (contained highly digestible animal proteins and 10.8% SBM) with and without 3,000 ppm ZnO (HC + and HC-, respectively; representative of commercial diets), low-complexity (corn- and SBM-based; 31.8% SBM; LC), or LC with 30% inclusion of full-fat black soldier fly larvae meal (BSFLM) to partially replace SBM (LCFL; 8.0% SBM). Diets were fed for 14 d (phase I), followed by 4 wk of a common corn-SBM diet (phase II). Fecal E. coli CFU and cecal mucosal microbial 16s rRNA community profiles were assessed 7 d after weaning. During phase I, pigs fed LC and LCFL had lower average daily gains (P < 0.05) than pigs fed HC + and HC-, which were not different. Average daily feed intake was not different for pigs fed LC and LCFL, but lower than for pigs fed HC- (P < 0.001); pigs fed HC + had greater feed intake in phase I vs. all other treatment groups (P < 0.001). Upon nursery exit, only pigs fed LCFL had lower BW than pigs fed HC- (P < 0.05), with intermediate values observed for HC + and LC. Day 3 fecal scores were greater for pigs fed LCFL vs. HC + (P < 0.05) and day 7 E. coli CFU were greater for all treatment groups vs. HC + (P < 0.001). Pigs fed HC- (P < 0.01), LC (P < 0.05), and LCFL (P < 0.05) had lower alpha diversity for cecal mucosal microbiota compared to HC+. At the genus level, pigs fed LC had lower Lactobacillus relative abundance vs. pigs fed HC + (P < 0.01). Therefore, BSFLM can partially replace SBM without sacrificing growth performance vs. nursery pigs fed corn- and SBM-based diets, but both groups had reduced phase I growth performance vs. pigs fed highly digestible diets containing animal proteins when weaned into non-disinfected pens. The BSFLM did not influence fecal E. coli CFU or improve fecal consistency after weaning and therefore, is less effective at minimizing digestive upsets vs. HC + diets.
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Affiliation(s)
- B Christensen
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - C Zhu
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - M Niazy
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - T McCullough
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - N Ricker
- Department of Pathobiology, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - L Huber
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
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Jerez-Bogota K, Jensen M, Højberg O, Cormican P, Lawlor PG, Gardiner GE, Canibe N. Antibacterial plant combinations prevent postweaning diarrhea in organically raised piglets challenged with enterotoxigenic Escherichia coli F18. Front Vet Sci 2023; 10:1095160. [PMID: 37077951 PMCID: PMC10106643 DOI: 10.3389/fvets.2023.1095160] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 03/13/2023] [Indexed: 04/05/2023] Open
Abstract
Antibiotics and zinc oxide restrictions encourage the search for alternatives to combat intestinal pathogens, including enterotoxigenic Escherichia coli (ETEC), a major cause of postweaning diarrhea (PWD) in pigs. PWD causes important economic losses for conventional and organic farming. This study investigated the effect of dietary supplementation with garlic and apple pomace or blackcurrant on infection indicators and the fecal microbiota of organic-raised piglets challenged with ETEC-F18. For 21 days, 32 piglets (7-weeks-old) were randomly assigned to one of four groups: non-challenge (NC); ETEC-challenged (PC); ETEC-challenged receiving garlic and apple pomace (3 + 3%; GA); ETEC-challenged receiving garlic and blackcurrant (3 + 3%; GB). ETEC-F18 was administered (8 mL; 109 CFU/ml) on days 1 and 2 postweaning. The 1st week, PC had lower average daily gain than those in the NC, GA, and GB groups (P < 0.05). NC pigs showed neither ETEC-F18 shedding nor signs of diarrhea. The PC group had higher diarrhea incidence and lower fecal dry matter than NC (≈5–10 days; 95% sEBCI). The GA and GB groups showed reduced ETEC-F18 and fedA gene shedding, higher fecal dry matter, and lower diarrhea incidence than the PC (≈5–9 days; 95% sEBCI). The NC, GA, and GB had normal hematology values during most of the study, whereas the PC had increased (P < 0.05) red blood cells, hemoglobin, and hematocrit on day 7. Haptoglobin and pig-MAP increased in all groups, peaking on day 7, but PC showed the greatest increase (P < 0.05). The fecal microbiota of PC pigs had reduced α-diversity (day 7; P < 0.05) and higher volatility (days 3–14; P < 0.05). Escherichia, Campylobacter, and Erysipelothrix were more abundant in the PC than in the NC, GB, and GA groups (log2FC > 2; P < 0.05), whereas Catenibacterium, Dialister, and Mitsoukella were more abundant in the NC, GB, and GA than in the PC group (log2FC > 2; P < 0.05). Prevotella and Lactobacillus were more abundant in the GB group (log2FC > 2, P < 0.05). In conclusion, dietary supplementation of GA and GB limited ETEC proliferation, reduced PWD, and beneficially impacted the fecal microbiota's diversity, composition, and stability.
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Affiliation(s)
- Kevin Jerez-Bogota
- Department of Food Science, Aarhus University, Aarhus, Denmark
- Department of Animal and Veterinary Sciences, Aarhus University, Tjele, Denmark
| | - Martin Jensen
- Department of Food Science, Aarhus University, Aarhus, Denmark
| | - Ole Højberg
- Department of Animal and Veterinary Sciences, Aarhus University, Tjele, Denmark
| | - Paul Cormican
- Animal Bioscience Research Centre, Teagasc Grange, Meath, Ireland
| | - Peadar G. Lawlor
- Pig Development Department, Teagasc Animal and Grassland Research and Innovation Centre, Fermoy, Ireland
| | - Gillian E. Gardiner
- Department of Science, Eco-Innovation Research Centre, Southeast Technological University, Waterford, Ireland
| | - Nuria Canibe
- Department of Animal and Veterinary Sciences, Aarhus University, Tjele, Denmark
- *Correspondence: Nuria Canibe
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