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TSUJIKAWA Y, NISHIYAMA K, NAMAI F, IMAMURA Y, SAKUMA T, SAHA S, SUZUKI M, SAKURAI M, IWATA R, MATSUO K, TAKAMORI H, SUDA Y, ZHOU B, FUKUDA I, VILLENA J, SAKANE I, OSAWA R, KITAZAWA H. Establishment of porcine fecal-derived ex vivo microbial communities to evaluate the impact of livestock feed on gut microbiome. BIOSCIENCE OF MICROBIOTA, FOOD AND HEALTH 2023; 43:100-109. [PMID: 38577893 PMCID: PMC10981943 DOI: 10.12938/bmfh.2023-085] [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: 10/03/2023] [Accepted: 10/24/2023] [Indexed: 04/06/2024]
Abstract
Sustainable livestock production requires reducing competition for food and feed resources and increasing the utilization of food by-products in livestock feed. This study describes the establishment of an anaerobic batch culture model to simulate pig microbiota and evaluate the effects of a food by-product, wakame seaweed stalks, on ex vivo microbial communities. We selected one of the nine media to support the growth of a bacterial community most similar in composition and diversity to that observed in pig donor feces. Supplementation with wakame altered the microbial profile and short-chain fatty acid composition in the ex vivo model, and a similar trajectory was observed in the in vivo pig experimental validation. Notably, the presence of wakame increased the abundance of Lactobacillus species, which may have been due to cross-feeding with Bacteroides. These results suggest the potential of wakame as a livestock feed capable of modulating the pig microbiome. Collectively, this study highlights the ability to estimate the microbiome changes that occur when pigs are fed a specific feed using an ex vivo culture model.
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Affiliation(s)
- Yuji TSUJIKAWA
- Food and Feed Immunology Group, Laboratory of Animal Food
Function, Graduate School of Agricultural Science, Tohoku University, 468-1 Aramakiaoba,
Aoba-ku, Sendai-shi, Miyagi 980-8572, Japan
- Central Research Institute, Ito En Ltd., 21 Mekami,
Sagara-cho, Haibara-gun, Shizuoka 421-0516, Japan
- Department of Agrobioscience, Graduate School of Agricultural
Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe-shi, Hyogo 657-8501, Japan
| | - Keita NISHIYAMA
- Food and Feed Immunology Group, Laboratory of Animal Food
Function, Graduate School of Agricultural Science, Tohoku University, 468-1 Aramakiaoba,
Aoba-ku, Sendai-shi, Miyagi 980-8572, Japan
- Livestock Immunology Unit, International Education and
Research Center for Food and Agricultural Immunology (CFAI), Graduate School of
Agricultural Science, Tohoku University, 41 Kawauchi, Aoba-ku, Sendai-shi, Miyagi
980-8576, Japan
| | - Fu NAMAI
- Food and Feed Immunology Group, Laboratory of Animal Food
Function, Graduate School of Agricultural Science, Tohoku University, 468-1 Aramakiaoba,
Aoba-ku, Sendai-shi, Miyagi 980-8572, Japan
- Livestock Immunology Unit, International Education and
Research Center for Food and Agricultural Immunology (CFAI), Graduate School of
Agricultural Science, Tohoku University, 41 Kawauchi, Aoba-ku, Sendai-shi, Miyagi
980-8576, Japan
| | - Yoshiya IMAMURA
- Food and Feed Immunology Group, Laboratory of Animal Food
Function, Graduate School of Agricultural Science, Tohoku University, 468-1 Aramakiaoba,
Aoba-ku, Sendai-shi, Miyagi 980-8572, Japan
| | - Taiga SAKUMA
- Food and Feed Immunology Group, Laboratory of Animal Food
Function, Graduate School of Agricultural Science, Tohoku University, 468-1 Aramakiaoba,
Aoba-ku, Sendai-shi, Miyagi 980-8572, Japan
| | - Sudeb SAHA
- Food and Feed Immunology Group, Laboratory of Animal Food
Function, Graduate School of Agricultural Science, Tohoku University, 468-1 Aramakiaoba,
Aoba-ku, Sendai-shi, Miyagi 980-8572, Japan
- Livestock Immunology Unit, International Education and
Research Center for Food and Agricultural Immunology (CFAI), Graduate School of
Agricultural Science, Tohoku University, 41 Kawauchi, Aoba-ku, Sendai-shi, Miyagi
980-8576, Japan
- Department of Dairy Science, Faculty of Veterinary, Animal
and Biomedical Sciences, Sylhet Agricultural University, Sylhet-3100, Bangladesh
- JSPS Fellow
| | - Masahiko SUZUKI
- Food and Feed Immunology Group, Laboratory of Animal Food
Function, Graduate School of Agricultural Science, Tohoku University, 468-1 Aramakiaoba,
Aoba-ku, Sendai-shi, Miyagi 980-8572, Japan
- Central Research Institute, Ito En Ltd., 21 Mekami,
Sagara-cho, Haibara-gun, Shizuoka 421-0516, Japan
| | - Mitsuki SAKURAI
- Food and Feed Immunology Group, Laboratory of Animal Food
Function, Graduate School of Agricultural Science, Tohoku University, 468-1 Aramakiaoba,
Aoba-ku, Sendai-shi, Miyagi 980-8572, Japan
| | - Ryo IWATA
- Department of Agrobioscience, Graduate School of Agricultural
Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe-shi, Hyogo 657-8501, Japan
| | - Kengo MATSUO
- Miyagi Prefecture Animal Industry Experiment Station, Osaki,
Miyagi 989-6445, Japan
| | - Hironori TAKAMORI
- Miyagi Prefecture Animal Industry Experiment Station, Osaki,
Miyagi 989-6445, Japan
| | - Yoshihito SUDA
- Department of Food, Agriculture and Environmental Science,
Miyagi University, 468-1 Aramakiaoba, Aoba-ku, Sendai-shi, Miyagi 980-8572, Japan
| | - Binghui ZHOU
- Food and Feed Immunology Group, Laboratory of Animal Food
Function, Graduate School of Agricultural Science, Tohoku University, 468-1 Aramakiaoba,
Aoba-ku, Sendai-shi, Miyagi 980-8572, Japan
- Livestock Immunology Unit, International Education and
Research Center for Food and Agricultural Immunology (CFAI), Graduate School of
Agricultural Science, Tohoku University, 41 Kawauchi, Aoba-ku, Sendai-shi, Miyagi
980-8576, Japan
| | - Itsuko FUKUDA
- Department of Agrobioscience, Graduate School of Agricultural
Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe-shi, Hyogo 657-8501, Japan
| | - Julio VILLENA
- Food and Feed Immunology Group, Laboratory of Animal Food
Function, Graduate School of Agricultural Science, Tohoku University, 468-1 Aramakiaoba,
Aoba-ku, Sendai-shi, Miyagi 980-8572, Japan
- Livestock Immunology Unit, International Education and
Research Center for Food and Agricultural Immunology (CFAI), Graduate School of
Agricultural Science, Tohoku University, 41 Kawauchi, Aoba-ku, Sendai-shi, Miyagi
980-8576, Japan
- Laboratory of Immunobiotechnology, Reference Centre for
Lactobacilli (CERELA-CONICET), Tucuman 4000, Argentina
| | - Iwao SAKANE
- Central Research Institute, Ito En Ltd., 21 Mekami,
Sagara-cho, Haibara-gun, Shizuoka 421-0516, Japan
| | - Ro OSAWA
- Food and Feed Immunology Group, Laboratory of Animal Food
Function, Graduate School of Agricultural Science, Tohoku University, 468-1 Aramakiaoba,
Aoba-ku, Sendai-shi, Miyagi 980-8572, Japan
- Department of Agrobioscience, Graduate School of Agricultural
Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe-shi, Hyogo 657-8501, Japan
| | - Haruki KITAZAWA
- Food and Feed Immunology Group, Laboratory of Animal Food
Function, Graduate School of Agricultural Science, Tohoku University, 468-1 Aramakiaoba,
Aoba-ku, Sendai-shi, Miyagi 980-8572, Japan
- Livestock Immunology Unit, International Education and
Research Center for Food and Agricultural Immunology (CFAI), Graduate School of
Agricultural Science, Tohoku University, 41 Kawauchi, Aoba-ku, Sendai-shi, Miyagi
980-8576, Japan
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Bellerose M, Fravalo P, Mainville I, Arcand Y, Thibodeau A. A short-term bioreactor assay to assess the effect of essential oils on a microbiota derived from piglet's intestinal content. Acta Vet Scand 2023; 65:17. [PMID: 37208761 PMCID: PMC10199583 DOI: 10.1186/s13028-023-00679-w] [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: 10/05/2022] [Accepted: 05/02/2023] [Indexed: 05/21/2023] Open
Abstract
BACKGROUND Modulating the microbiota is an emerging way to improve pig health. In-vitro bioreactor systems can be used to reproduce intestinal microbiota to study modulating avenues. In this study, a continuous feeding system to support a microbiota derived from piglet colonic contents, over 72 h, was developed. The microbiota from piglets was collected and used as inoculum. The culture media was derived from an artificial digestion of piglet feed. The microbiota diversity in time, the reproducibility between replicates and the diversity of the bioreactor microbiota compared to the inoculum was assessed. Essential oils were used as a proof of concept to assess the in vitro microbiota modulation. The microbiota diversity was assessed by 16S rRNA amplicon sequencing. Quantitative PCR was also used for total bacteria, lactobacilli and Enterobacteria. RESULTS At the start of the assay, the bioreactor microbiota diversity was similar to the inoculum. Time and replication affected the bioreactor microbiota diversity. Between 48 and 72 h, no statistical variation of the microbiota diversity was observable. After a 48 h running period, thymol and carvacrol were added at 200 ppm or 1000 ppm for 24 h. No microbiota modification was observed by sequencing. Quantitative PCR results showed a significant growth of lactobacilli when thymol was used at 1000 ppm, where only a trend was observed with the 16S analysis. CONCLUSIONS This study presents a bioreactor assay that can be used as a tool for rapid screening of additives and suggests that the effects of essential oils on the microbiota are subtle, acting against a few bacterial genera.
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Affiliation(s)
- Mathieu Bellerose
- Research Chair in Meat Safety, Faculty of Veterinary Medicine, University of Montreal, 3 200 rue Sicotte, (J2S 2M2), Saint-Hyacinthe, Canada
- Swine and Poultry Infectious Diseases Research Centre, Faculty of Veterinary Medicine, University of Montreal, 3 200 rue Sicotte, (J2S 2M2), Saint-Hyacinthe, Canada
| | - Philippe Fravalo
- Research Chair in Meat Safety, Faculty of Veterinary Medicine, University of Montreal, 3 200 rue Sicotte, (J2S 2M2), Saint-Hyacinthe, Canada
- Chaire Agro-alimentaire, Conservatoire national des arts et métiers, Le Cnam, 2 Rue Camille Guérin, Ploufragan, 22440 France
| | - Isabelle Mainville
- Agriculture and Agri-Food Canada, Saint-Hyacinthe Research and Development Centre, 3 600 Casavant O, Saint-Hyacinthe, J2S 8E3 Canada
| | - Yves Arcand
- Agriculture and Agri-Food Canada, Saint-Hyacinthe Research and Development Centre, 3 600 Casavant O, Saint-Hyacinthe, J2S 8E3 Canada
| | - Alexandre Thibodeau
- Research Chair in Meat Safety, Faculty of Veterinary Medicine, University of Montreal, 3 200 rue Sicotte, (J2S 2M2), Saint-Hyacinthe, Canada
- Swine and Poultry Infectious Diseases Research Centre, Faculty of Veterinary Medicine, University of Montreal, 3 200 rue Sicotte, (J2S 2M2), Saint-Hyacinthe, Canada
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Navez M, Antoine C, Laforêt F, Goya-Jorge E, Douny C, Scippo ML, Vermeersch M, Duprez JN, Daube G, Mainil J, Taminiau B, Delcenserie V, Thiry D. In Vitro Effect on Piglet Gut Microbiota and In Vivo Assessment of Newly Isolated Bacteriophages against F18 Enterotoxigenic Escherichia coli (ETEC). Viruses 2023; 15:v15051053. [PMID: 37243139 DOI: 10.3390/v15051053] [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: 03/02/2023] [Revised: 04/19/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023] Open
Abstract
Enterotoxigenic Escherichia coli (ETEC) causing post-weaning diarrhea (PWD) in piglets have a detrimental impact on animal health and economy in pig production. ETEC strains can adhere to the host's small intestinal epithelial cells using fimbriae such as F4 and F18. Phage therapy could represent an interesting alternative to antimicrobial resistance against ETEC infections. In this study, four bacteriophages, named vB_EcoS_ULIM2, vB_EcoM_ULIM3, vB_EcoM_ULIM8 and vB_EcoM_ULIM9, were isolated against an O8:F18 E. coli strain (A-I-210) and selected based on their host range. These phages were characterized in vitro, showing a lytic activity over a pH (4-10) and temperature (25-45 °C) range. According to genomic analysis, these bacteriophages belong to the Caudoviricetes class. No gene related to lysogeny was identified. The in vivo Galleria mellonella larvae model suggested the therapeutic potential of one selected phage, vB_EcoS_ULIM2, with a statistically significant increase in survival compared to non-treated larvae. To assess the effect of this phage on the piglet gut microbiota, vB_EcoS_ULIM2 was inoculated in a static model simulating the piglet intestinal microbial ecosystem for 72 h. This study shows that this phage replicates efficiently both in vitro and in vivo in a Galleria mellonella model and reveals the safety of the phage-based treatment on the piglet microbiota.
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Affiliation(s)
- Margaux Navez
- Laboratory of Bacteriology, Department of Infectious and Parasitic Diseases, FARAH and Faculty of Veterinary Medicine, University of Liege, 4000 Liege, Belgium
- Unit of Cardiovascular Sciences, Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), University of Liege, 4000 Liege, Belgium
| | - Céline Antoine
- Laboratory of Bacteriology, Department of Infectious and Parasitic Diseases, FARAH and Faculty of Veterinary Medicine, University of Liege, 4000 Liege, Belgium
- Laboratory of Food Quality Management, Food Science Department, FARAH and Faculty of Veterinary Medicine, University of Liège, 4000 Liege, Belgium
| | - Fanny Laforêt
- Laboratory of Bacteriology, Department of Infectious and Parasitic Diseases, FARAH and Faculty of Veterinary Medicine, University of Liege, 4000 Liege, Belgium
- Laboratory of Food Quality Management, Food Science Department, FARAH and Faculty of Veterinary Medicine, University of Liège, 4000 Liege, Belgium
| | - Elizabeth Goya-Jorge
- Laboratory of Food Quality Management, Food Science Department, FARAH and Faculty of Veterinary Medicine, University of Liège, 4000 Liege, Belgium
| | - Caroline Douny
- Laboratory of Food Analysis, Department of Food Sciences, FARAH and Faculty of Veterinary Medicine, University of Liège, 4000 Liege, Belgium
| | - Marie-Louise Scippo
- Laboratory of Food Analysis, Department of Food Sciences, FARAH and Faculty of Veterinary Medicine, University of Liège, 4000 Liege, Belgium
| | - Marjorie Vermeersch
- Center for Microscopy and Molecular Imaging, Electron Microscopy Laboratory, ULB, 6041 Gosselies, Belgium
| | - Jean-Noël Duprez
- Laboratory of Bacteriology, Department of Infectious and Parasitic Diseases, FARAH and Faculty of Veterinary Medicine, University of Liege, 4000 Liege, Belgium
| | - Georges Daube
- Laboratory of Food Microbiology, Fundamental and Applied Research for Animals & Health (FARAH), Department of Food Sciences, Faculty of Veterinary Medicine, University of Liege, 4000 Liege, Belgium
| | - Jacques Mainil
- Laboratory of Bacteriology, Department of Infectious and Parasitic Diseases, FARAH and Faculty of Veterinary Medicine, University of Liege, 4000 Liege, Belgium
| | - Bernard Taminiau
- Laboratory of Food Microbiology, Fundamental and Applied Research for Animals & Health (FARAH), Department of Food Sciences, Faculty of Veterinary Medicine, University of Liege, 4000 Liege, Belgium
| | - Véronique Delcenserie
- Laboratory of Food Quality Management, Food Science Department, FARAH and Faculty of Veterinary Medicine, University of Liège, 4000 Liege, Belgium
| | - Damien Thiry
- Laboratory of Bacteriology, Department of Infectious and Parasitic Diseases, FARAH and Faculty of Veterinary Medicine, University of Liege, 4000 Liege, Belgium
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Apple Pomace Modulates the Microbiota and Increases the Propionate Ratio in an In Vitro Piglet Gastrointestinal Model. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8080408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Apple pomace (AP) contains biomolecules that induce changes in intestinal fermentation of monogastrics with positive expected health effects. The weaning of piglets can induce economic losses due to intestinal disturbances; new weaning strategies are, thus, welcome. The purpose of this study was to test the effect of AP on fermentation products by using baby-SPIME, an in vitro multi-compartment model dedicated to piglet weaning. A comparison was done on short chain fatty acid (SCFA) ratio and the microbiota induced in bioreactors between a control culture medium vs. an AP culture medium. The results of 2 preliminary runs showed that AP medium increased the molar ratio of propionate (p = 0.021) and decreased the molar ratio of butyrate (p = 0.009). Moreover, this medium increased the cumulative relative abundance of Prevotella sp. and Akkermansia sp. in bioreactors. AP could promote an ecosystem enriched with bacteria known as next-generation probiotics (NGP)—likely influencing the energy metabolism of piglets by their fermentation metabolites. AP could be used as a dietary strategy to influence bacterial changes in the intestine by stimulating the growth of bacteria identified as NGP.
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Gresse R, Chaucheyras-Durand F, Garrido JJ, Denis S, Jiménez-Marín A, Beaumont M, Van de Wiele T, Forano E, Blanquet-Diot S. Pathogen Challenge and Dietary Shift Alter Microbiota Composition and Activity in a Mucin-Associated in vitro Model of the Piglet Colon (MPigut-IVM) Simulating Weaning Transition. Front Microbiol 2021; 12:703421. [PMID: 34349744 PMCID: PMC8328230 DOI: 10.3389/fmicb.2021.703421] [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: 04/30/2021] [Accepted: 06/24/2021] [Indexed: 12/13/2022] Open
Abstract
Enterotoxigenic Escherichia coli (ETEC) is the principal pathogen responsible for post-weaning diarrhea in newly weaned piglets. Expansion of ETEC at weaning is thought to be the consequence of various stress factors such as transient anorexia, dietary change or increase in intestinal inflammation and permeability, but the exact mechanisms remain to be elucidated. As the use of animal experiments raise more and more ethical concerns, we used a recently developed in vitro model of piglet colonic microbiome and mucobiome, the MPigut-IVM, to evaluate the effects of a simulated weaning transition and pathogen challenge at weaning. Our data suggested that the tested factors impacted the composition and functionality of the MPigut-IVM microbiota. The simulation of weaning transition led to an increase in relative abundance of the Prevotellaceae family which was further promoted by the presence of the ETEC strain. In contrast, several beneficial families such as Bacteroidiaceae or Ruminococcaceae and gut health related short chain fatty acids like butyrate or acetate were reduced upon simulated weaning. Moreover, the incubation of MPigut-IVM filtrated effluents with porcine intestinal cell cultures showed that ETEC challenge in the in vitro model led to an increased expression of pro-inflammatory genes by the porcine cells. This study provides insights about the etiology of a dysbiotic microbiota in post-weaning piglets.
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Affiliation(s)
- Raphaële Gresse
- INRAE, UMR 454 MEDIS, Université Clermont Auvergne, Clermont-Ferrand, France.,Lallemand SAS, Blagnac, France
| | | | - Juan J Garrido
- Grupo de Genómica y Mejora Animal, Departamento de Genética, Facultad de Veterinaria, Universidad de Córdoba, Córdoba, Spain
| | - Sylvain Denis
- INRAE, UMR 454 MEDIS, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Angeles Jiménez-Marín
- Grupo de Genómica y Mejora Animal, Departamento de Genética, Facultad de Veterinaria, Universidad de Córdoba, Córdoba, Spain
| | - Martin Beaumont
- GenPhySE, INRAE, ENVT, Université de Toulouse, Castanet-Tolosan, France
| | - Tom Van de Wiele
- Center for Microbial Ecology and Technology, Ghent University, Ghent, Belgium
| | - Evelyne Forano
- INRAE, UMR 454 MEDIS, Université Clermont Auvergne, Clermont-Ferrand, France
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Gresse R, Chaucheyras-Durand F, Denis S, Beaumont M, Van de Wiele T, Forano E, Blanquet-Diot S. Weaning-associated feed deprivation stress causes microbiota disruptions in a novel mucin-containing in vitro model of the piglet colon (MPigut-IVM). J Anim Sci Biotechnol 2021; 12:75. [PMID: 34078434 PMCID: PMC8170946 DOI: 10.1186/s40104-021-00584-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 03/11/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Risk factors for the etiology of post-weaning diarrhea, a major problem in swine industry associated with enormous economic losses, remain to be fully elucidated. In concordance with the ethical concerns raised by animal experiments, we developed a new in vitro model of the weaning piglet colon (MPigut-IVM) including a mucin bead compartment to reproduce the mucus surface from the gut to which gut microbes can adhere. RESULTS Our results indicated that the MPigut-IVM is able to establish a representative piglet archaeal and bacterial colon microbiota in terms of taxonomic composition and function. The MPigut-IVM was consequently used to investigate the potential effects of feed deprivation, a common consequence of weaning in piglets, on the microbiota. The lack of nutrients in the MPigut-IVM led to an increased abundance of Prevotellaceae and Escherichia-Shigella and a decrease in Bacteroidiaceae and confirms previous in vivo findings. On top of a strong increase in redox potential, the feed deprivation stress induced modifications of microbial metabolite production such as a decrease in acetate and an increase in proportional valerate, isovalerate and isobutyrate production. CONCLUSIONS The MPigut-IVM is able to simulate luminal and mucosal piglet microbiota and represent an innovative tool for comparative studies to investigate the impact of weaning stressors on piglet microbiota. Besides, weaning-associated feed deprivation in piglets provokes disruptions of MPigut-IVM microbiota composition and functionality and could be implicated in the onset of post-weaning dysbiosis in piglets.
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Affiliation(s)
- Raphaële Gresse
- Université Clermont Auvergne, INRAE, UMR 454 MEDIS, F-63000 Clermont-Ferrand, France
- Lallemand SAS, F-31702 Blagnac, Cedex France
| | - Frédérique Chaucheyras-Durand
- Université Clermont Auvergne, INRAE, UMR 454 MEDIS, F-63000 Clermont-Ferrand, France
- Lallemand SAS, F-31702 Blagnac, Cedex France
| | - Sylvain Denis
- Université Clermont Auvergne, INRAE, UMR 454 MEDIS, F-63000 Clermont-Ferrand, France
| | - Martin Beaumont
- GenPhySE, Université de Toulouse, INRAE, ENVT, F-31326 Castanet-Tolosan, France
| | - Tom Van de Wiele
- Ghent University, Center for Microbial Ecology and Technology, B-9000 Ghent, Belgium
| | - Evelyne Forano
- Université Clermont Auvergne, INRAE, UMR 454 MEDIS, F-63000 Clermont-Ferrand, France
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Dufourny S, Everaert N, Lebrun S, Didelez M, Wavreille J, Froidmont E, Rondia P, Delcenserie V. Oxygen as a key parameter in in vitro dynamic and multi-compartment models to improve microbiome studies of the small intestine? Food Res Int 2020; 133:109127. [PMID: 32466899 DOI: 10.1016/j.foodres.2020.109127] [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: 09/06/2019] [Revised: 01/10/2020] [Accepted: 02/24/2020] [Indexed: 11/13/2022]
Abstract
In vitro digestion and fermentation models are frequently used for human and animal research purposes. Different dynamic and multi-compartment models exist, but none have been validated with representative microbiota in the distal parts of the small intestine. We recently developed a dynamic and multi-compartment piglet model introducing microbiota in an ileum bioreactor. However, it presented discrepancies compared to in vivo data. Recommendations are available to standardize studies in this field. They target the digestion model but include elements of a fermentation model. But no recommendation is given concerning control of the atmosphere. The gastrointestinal tract is generally associated with anaerobiosis to conduct a good fermentation process. In this study, we attempted to improve the ileal microbiota of the piglet model by testing inoculation: real intestinal content vs feces; the latter being generally used for ethical and economical aspects. Results showed a positive effect of using real intestinal content. Fusobacteriia were less abundant in the model, Bacteroidia were better maintained in the colon. But for the ileum, results showed that anoxic conditions in the ileum bioreactor conditioned the microbial profile probably more than the type of inoculum itself, leading to the general conclusion that in vitro dynamic and multi-compartment models probably have to get oxygenated to improve microbiome studies of the small intestine.
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Affiliation(s)
- S Dufourny
- Animal Nutrition and Sustainability Unit, Production and Sectors Department, Walloon Agricultural Research Centre, Rue de Liroux 8, B-5030 Gembloux, Belgium.
| | - N Everaert
- Precision Livestock and Nutrition Unit, AgroBioChem Department, TERRA Teaching and Research Centre, University of Liège, Passage des Déportés 2, B-5030 Gembloux, Belgium.
| | - S Lebrun
- Food Quality Management, Food Science Department, FARAH, University of Liège, Avenue de Cureghem 10, B-4000 Liège, Belgium.
| | - M Didelez
- Animal Nutrition and Sustainability Unit, Production and Sectors Department, Walloon Agricultural Research Centre, Rue de Liroux 8, B-5030 Gembloux, Belgium.
| | - J Wavreille
- Animal Breeding, Quality Production and Welfare Unit, Production and Sectors Department, Walloon Agricultural Research Centre, Rue de Liroux 8, B-5030 Gembloux, Belgium.
| | - E Froidmont
- Animal Nutrition and Sustainability Unit, Production and Sectors Department, Walloon Agricultural Research Centre, Rue de Liroux 8, B-5030 Gembloux, Belgium.
| | - P Rondia
- Animal Nutrition and Sustainability Unit, Production and Sectors Department, Walloon Agricultural Research Centre, Rue de Liroux 8, B-5030 Gembloux, Belgium.
| | - V Delcenserie
- Food Quality Management, Food Science Department, FARAH, University of Liège, Avenue de Cureghem 10, B-4000 Liège, Belgium.
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