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Etude de la diversité spécifique des bactéries attachées à la paroi du rumen : effet du régime alimentaire

Abstract : Bacteria attached to the rumen epithelium (epimural community) represent only 1% of the total rumen microbial biomass. Information on this community is scarce. However, it could play an important role in rumen function. The purpose of this thesis was to improve our knowledge of this community by studying its diversity by PCR-DGGE. We have shown that, irrespective of diet and animal species, this community was 1) homogeneous between different epithelial sampling sites for the same animal but 2) variable between animals, and 3) different from the bacterial communities present in rumen contents, suggesting specific roles for these epithelial bacteria. Contrary to the rumen content bacterial communities, epithelial bacteria were not affected by diet in up to two months trials.
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Submitted on : Wednesday, September 5, 2012 - 4:17:35 PM
Last modification on : Tuesday, March 17, 2020 - 1:47:14 AM

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Sophie Sadet. Etude de la diversité spécifique des bactéries attachées à la paroi du rumen : effet du régime alimentaire. Ingénierie des aliments. Université Blaise Pascal - Clermont-Ferrand II, 2008. Français. ⟨tel-00728351⟩

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