Timely Topics

In-depth study of intensively milk-fed calf microbiota

By J.J. Castro, A. Gomez, B. White, J.R. Loften, J.K. Drackley

Changes in the intestinal bacterial community, short-chain fatty acid profile, and intestinal development of preweaned Holstein calves. 2. Effects of gastrointestinal site and age1 Read

Calving/transition

Using rumination sensors to monitor heat stress in dairy cows

By Mathew M. Haan, Penn State Extension

Heat stress study at farm-level clearly shows the impact of heat stress on rumination and on milk production. Read

Calves absorb the good, the bad, and the ugly

By Maggie Seiler

“There are many holes in the gastrointestinal immune system for the first few weeks,” explains Michael Ballou Read

Calving/transition Immunity lower gut tract

New research on non-lactating cattle fed high concentrate diets

Evidence of in vivo absorption of lactate and modulation of short chain fatty acid absorption from the reticulorumen of non-lactating cattle fed high concentrate diet Read

Rumen papillae absorption Acidosis Rumen fermentation Rumen pH

New research on non-lactating cattle fed high concentrate diets

By M. Qumar, R. Khiaosa-ard, P. Pourazad, S. U. Wetzels, F. Klevenhusen, W. Kandler, J. R. Aschenbach, Q. Zebeli

Evidence of in vivo absorption of lactate and modulation of short chain fatty acid absorption from the reticulorumen of non-lactating cattle fed high concentrate diet Read

Acidosis Rumen fermentation Rumen papillae absorption Rumen pH