Timely Topics

Effects of ruminal pH on gene expression in the rumen epithelium, peripheral blood 4 mononuclear cell subpopulations, and blood metabolites from Holstein calves during 5 weaning transition

By Yo-Han KIM, Noriyuki TOJI, Keiichiro KIZAKI, Kei TAKEMURA, Shiro KUSHIBIKI, Shigeru SATO

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

Automated assessment of reticulo-ruminal motility in dairy cows using 3-dimensional vision

By X. Song, P. P. J. van der Tol, P. W. G. Groot Koerkamp, and E. A. M. Bokkers

This study demonstrated a low-cost 3D vision system that could automatically and remotely assess the reticulo-ruminal motility of dairy cows. The automated assessment performed similarly to referential manual assessment. In contrast to other available methods of reticulo-ruminal assessment, this automated system was noninvasive and did not distress the cows. Read
Page 1 of 9