Timely Topics

Changes in the rumen and colon microbiota and effects of live yeast dietary supplementation during the transition from the dry period to lactation of dairy cows

By A. Bach, A. López-García, O. González-Recio, G. Elcoso, F. Fàbregas, F. Chaucheyras-Durand, M. Castex

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

Changes in digestive microbiota due to a grain-based SARA challenge

By Jan C. Plaizier, Shucong Li, Anne Mette Danscher, Hooman Derakshani, Pia H. Andersen, Ehsan Khafipour

A study showing how a grain-based diet-induced subacute ruminal acidosis (SARA) challenge impacts the rumen microbiota of lactating dairy cows. The richness, the diversity, as well as the stability of the bacterial communities were reduced for SARA challenged cows. Both ruminal and fecal microbiota were changed, indicating that the rumen but also the hindgut microbiota are affected by SARA challenge. Read