Ruminant production systems face significant challenges currently, driven by heightened
awareness of their negative environmental impact and the rapidly rising global population …

Improvements in feed efficiency of beef cattle have the potential to increase producer
profitability and simultaneously lower the environmental footprint of beef production …

Background Microorganisms are responsible for fermentation within the rumen and have
been reported to contribute to the variation in feed efficiency of cattle. However, to what …

Increasing food production for the growing human population off a constraining land base
will require greater efficiency of production. Genetic improvement of feed efficiency in cattle …

Fourteen Holstein cows of similar ages were monitored through their first two lactation
cycles, during which ruminal solids and liquids, milk samples, production data, and feed …

Feed-efficient animals have lower production costs and reduced environmental impact.
Given that rumen microbial fermentation plays a pivotal role in host nutrition, the premise …

Mitigation of enteric methane (CH4) emission in ruminants has become an important area of
research because accumulation of CH4 is linked to global warming. Nutritional and …

Genetic selection for residual feed intake (RFI) is an indirect approach for reducing enteric
methane (CH4) emissions in beef and dairy cattle. RFI is moderately heritable (0.26 to 0.43) …

Background Feed efficient cattle consume less feed and produce less environmental waste
than inefficient cattle. Many factors are known to contribute to differences in feed efficiency …

Residual feed intake (RFI) testing has increased selection pressure on biological efficiency
in cattle. The objective of this study was to assess the association of the rumen microbiome …