Karen A. Beauchemin

TL;DR: Acyl-homoserine lactone based quorum-sensing systems are widespread among gram-negative bacteria, particularly in association with plants and animals, but there have been no reports of AHL signaling in the anaerobic rumen environment.

TL;DR: Investigation of the effect of a linear increase in level of ruminally fermentable carbohydrate, at a constant level of dietary starch and fiber, on performance, microbial N yield, chewing activity, and ruminal pH of midlactation dairy cows found increasing levels of refined cornstarch did not compromise rumen fermentation or affect performance.

TL;DR: Feeding EN to beef heifers lowered enteric methane production in a dose-response manner, which slightly increased energy supply and energy losses by enteringic methane mitigation, which increased ME supply.

TL;DR: In this paper, the authors compared the greenhouse gas (GHG) emissions and breeding herd and land requirements of Canadian beef production in 1981 and 2011 and found that a significant reduction in GHG intensity over the past three decades occurred as a result of increased average daily gain and slaughter weight, improved reproductive efficiency, reduced time to slaughter, increased crop yields and a shift towards high-grain diets.

TL;DR: Overall, inoculation with bison rumen contents successfully altered the cattle rumen microbiome and metabolism, and increased protein digestibility and nitrogen retention, but did not alter fiber digestibility.