365 Impact of nutrition on the ruminal microbiome and epithelial tissue

Abstract:

Ruminal microbiome composition and epithelial tissue function can influence the diet's ability to address the nutrient requirements of cattle, but these associative effects are poorly characterized. Experiments were conducted to determine the effect of 2 dietary strategies, subacute ruminal acidosis (SARA) and the inclusion level of condensed distillers solubles (CDS), on the ruminal microbiome and epithelial gene expression. In both experiments, rumen samples were separated into solid and liquid fractions while epithelial papillae were excised from the rumen. After using a feed restriction acidosis-induction model, relative abundance of Bacteroidetes was increased (P < 0.01) in the solid fraction of SARA cows compared with Non-SARA cows. Quantitative PCR indicated greater Anaerovibrio lipolytica, Prevotella bryantii, and Succinimonas amylolytica (P < 0.03) after induction in the solid fraction of SARA cows …

Año de publicación:

2016

Keywords:

Fuente:

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