Karen A. Beauchemin

TL;DR: In this paper, a variety of nutritional management strategies that reduce enteric methane (CH4) production are discussed, such as increasing the level of grain in the diet, inclusion of lipids and supplementation with ionophores (>24ppm) are most likely to be implemented by farmers.

TL;DR: Results from in vitro batch culture studies provide evidence that EO and their components have the potential to improve N and/or energy utilization in ruminants and identification of EO that favorably alter fermentation without resulting in broad overall inhibition of rumen fermentation, continues to be a major challenge for researchers.

TL;DR: It is demonstrated that sunflower oil, ionophores, and possibly some yeast products can be used to decrease the GE lost as methane from cattle, but fiber digestibility is impaired with oil supplementation.

TL;DR: In this article, the authors have demonstrated that supplementing dairy cow and feedlot cattle diets with fiberdegrading enzymes has significant potential to improve feed utilization and animal performance, mainly due to improvements in ruminal fiber digestion resulting in increased digestible energy intake.

TL;DR: A life cycle assessment (LCA) was conducted to estimate whole-farm greenhouse gas (GHG) emissions from beef production in western Canada as discussed by the authors, where the authors determined the relative contributions of the cow-calf and feedlot components to these emissions, and examined the proportion of whole farm emissions attributable to enteric methane (CH 4 ).