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In this 2019 paper published in The Journal of Veterinary Medical Science, the authors found feeding the only starter to calves decreases rumen pH at weaning with upregulation of the receptor TLR4. Feeding only starter lowered cholesterol synthesis in the rumen epithelium whereas starter and forage combined resulted in higher energy status. Read

This work offers a comprehensive analysis of more than 6.5 terabytes of Illumina and Nanopore sequence data, including assembly of 4,941 metagenome-assembled genomes, whole-chromosome assemblies of novel rumen bacteria. Read

This research suggests that specific rumen microbes are altered in cows with high SCCs. Cows with high SCCs showed lowered milk and component yield and rumen volatile fatty acids concentration — but these cows also had higher rumen bacterial diversity compared to low SCC cows. Read

The authors of this 2013 Nature publication describe the changes occurring in the rumen ecosystem after birth. Read

This article presents 913 draft bacterial and archaeal genomes from 43 Scottish cattle. Most of these genomes were previously unsequenced strains and species. Read

In this study, researchers made innovative use of endoscopy to sample rumen and colon tissues. This technique offered a unique perspective to study rumen microbiota. The resulting research details the effect of the rumen-specific yeast S. cerevisiae CNCM I-1077 on microbiota changes in both rumen and colon around transition. Read

In the future, we may be able to estimate dairy production using a “genotype × environment × microbial” interaction model that accurately combines all factors affecting milk production. Read

The use of relative rumen microbial gene abundances to estimate meat fatty acids profiles has great potential as proxy traits for breeding. Read

This study evaluates the degradation pattern of rice straw by ruminal bacteria and identifies the bacteria that colonize rice straw during its digestion in the cow rumen. Read