Abstract
Studies of the cattle rumen have uncovered correlations between animal production and the rumen microbial community. Young et al. (e00861-20) improve on previous work to adapt buccal swab sampling as a proxy for rumen microbial contents by applying random forest classifier and regression models to a time course survey of cannulated cows. They found that swabs taken 1 hour prior to feeding were the most representative of rumen contents, and they identified 10 oral or feed-associated microbial taxa that could be removed from analysis. This has implications with regard to the routine collection of microbial samples from cattle for use in improving animal production systems.
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