Evolution of Pig Fecal Microbiota Composition and Diversity in Response to Enterotoxigenic <i>Escherichia coli</i> Infection and Colistin Treatment in Weaned Piglets
The intestinal microbiota plays several important roles in pig health and growth. The aim of the current study was to characterize the changes in the fecal microbiota diversity and composition of weaned piglets following an oral challenge with an ETEC: F4 strain and/or a treatment with colistin sulf...
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MDPI AG
2021-07-01
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| Series: | Microorganisms |
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| Online Access: | https://www.mdpi.com/2076-2607/9/7/1459 |
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| author | Mohamed Rhouma Charlotte Braley William Thériault Alexandre Thibodeau Sylvain Quessy Philippe Fravalo |
| author_facet | Mohamed Rhouma Charlotte Braley William Thériault Alexandre Thibodeau Sylvain Quessy Philippe Fravalo |
| author_sort | Mohamed Rhouma |
| collection | DOAJ |
| description | The intestinal microbiota plays several important roles in pig health and growth. The aim of the current study was to characterize the changes in the fecal microbiota diversity and composition of weaned piglets following an oral challenge with an ETEC: F4 strain and/or a treatment with colistin sulfate (CS). Twenty-eight piglets were used in this experiment and were divided into four groups: challenged untreated, challenged treated, unchallenged treated, and unchallenged untreated. Rectal swab samples were collected at five sampling times throughout the study. Total genomic DNA was used to assess the fecal microbiota diversity and composition using the V4 region of the 16S rRNA gene. The relative abundance, the composition, and the community structure of piglet fecal microbiota was highly affected by the ETEC: F4 challenge throughout the experiment, while the oral treatment with CS, a narrow spectrum antibiotic, resulted in a significant decrease of <i>E. coli/Shigella</i> populations during the treatment period only. This study was the first to identify some gut microbiota subgroups (e.g., <i>Streptococcus</i>, <i>Lachnospiraceae</i>) that are associated with healthy piglets as compared to ETEC: F4 challenged animals. These key findings might contribute to the development of alternative strategies to reduce the use of antimicrobials in the control of post-weaning diarrhea in pigs. |
| first_indexed | 2024-03-10T09:31:33Z |
| format | Article |
| id | doaj.art-750cb0af439f42088cfe1e8367238525 |
| institution | Directory Open Access Journal |
| issn | 2076-2607 |
| language | English |
| last_indexed | 2024-03-10T09:31:33Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
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| series | Microorganisms |
| spelling | doaj.art-750cb0af439f42088cfe1e83672385252023-11-22T04:26:02ZengMDPI AGMicroorganisms2076-26072021-07-0197145910.3390/microorganisms9071459Evolution of Pig Fecal Microbiota Composition and Diversity in Response to Enterotoxigenic <i>Escherichia coli</i> Infection and Colistin Treatment in Weaned PigletsMohamed Rhouma0Charlotte Braley1William Thériault2Alexandre Thibodeau3Sylvain Quessy4Philippe Fravalo5Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, CanadaDepartment of Pathology and Microbiology, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, CanadaDepartment of Pathology and Microbiology, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, CanadaDepartment of Pathology and Microbiology, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, CanadaDepartment of Pathology and Microbiology, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, CanadaDepartment of Pathology and Microbiology, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC J2S 2M2, CanadaThe intestinal microbiota plays several important roles in pig health and growth. The aim of the current study was to characterize the changes in the fecal microbiota diversity and composition of weaned piglets following an oral challenge with an ETEC: F4 strain and/or a treatment with colistin sulfate (CS). Twenty-eight piglets were used in this experiment and were divided into four groups: challenged untreated, challenged treated, unchallenged treated, and unchallenged untreated. Rectal swab samples were collected at five sampling times throughout the study. Total genomic DNA was used to assess the fecal microbiota diversity and composition using the V4 region of the 16S rRNA gene. The relative abundance, the composition, and the community structure of piglet fecal microbiota was highly affected by the ETEC: F4 challenge throughout the experiment, while the oral treatment with CS, a narrow spectrum antibiotic, resulted in a significant decrease of <i>E. coli/Shigella</i> populations during the treatment period only. This study was the first to identify some gut microbiota subgroups (e.g., <i>Streptococcus</i>, <i>Lachnospiraceae</i>) that are associated with healthy piglets as compared to ETEC: F4 challenged animals. These key findings might contribute to the development of alternative strategies to reduce the use of antimicrobials in the control of post-weaning diarrhea in pigs.https://www.mdpi.com/2076-2607/9/7/1459<i>Escherichia coli</i>ETECcolistin16S rRNAfecal microbiotadiversity |
| spellingShingle | Mohamed Rhouma Charlotte Braley William Thériault Alexandre Thibodeau Sylvain Quessy Philippe Fravalo Evolution of Pig Fecal Microbiota Composition and Diversity in Response to Enterotoxigenic <i>Escherichia coli</i> Infection and Colistin Treatment in Weaned Piglets Microorganisms <i>Escherichia coli</i> ETEC colistin 16S rRNA fecal microbiota diversity |
| title | Evolution of Pig Fecal Microbiota Composition and Diversity in Response to Enterotoxigenic <i>Escherichia coli</i> Infection and Colistin Treatment in Weaned Piglets |
| title_full | Evolution of Pig Fecal Microbiota Composition and Diversity in Response to Enterotoxigenic <i>Escherichia coli</i> Infection and Colistin Treatment in Weaned Piglets |
| title_fullStr | Evolution of Pig Fecal Microbiota Composition and Diversity in Response to Enterotoxigenic <i>Escherichia coli</i> Infection and Colistin Treatment in Weaned Piglets |
| title_full_unstemmed | Evolution of Pig Fecal Microbiota Composition and Diversity in Response to Enterotoxigenic <i>Escherichia coli</i> Infection and Colistin Treatment in Weaned Piglets |
| title_short | Evolution of Pig Fecal Microbiota Composition and Diversity in Response to Enterotoxigenic <i>Escherichia coli</i> Infection and Colistin Treatment in Weaned Piglets |
| title_sort | evolution of pig fecal microbiota composition and diversity in response to enterotoxigenic i escherichia coli i infection and colistin treatment in weaned piglets |
| topic | <i>Escherichia coli</i> ETEC colistin 16S rRNA fecal microbiota diversity |
| url | https://www.mdpi.com/2076-2607/9/7/1459 |
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