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

There is simultaneous interest in improving the feed efficiency of ruminant livestock and
reducing methane (CH4) emissions. The relationship (genetic and phenotypic) between …

The objective of this study was to evaluate the effect of residual feed intake (RFI) on rumen
function in finishing lambs. A total of 60 male Hu lambs (average initial BW= 25.2±2.5 kg) …

Context Providing feed is the largest cost in beef production. Genetic variation exists in feed
efficiency traits in young cattle but the genetic associations with feed efficiency traits in cows …

Australian seedstock cattle breeders have expressed concerns that while there has been
genetic improvement in feedlot and abattoir performance of cows, it could have led to a …

This experiment evaluated the productivity of 500 Angus cows that differed in genetic merit
for either subcutaneous rib fat depth (Fat) or residual feed intake (RFI) based on estimated …

The pregnancy rate of heifers affects the efficiency and profitability of beef herds. Heifers
extreme in rib fatness (Fat) or post-weaning residual feed intake (RFI) estimated breeding …

Two small pen trials with cattle and sheep both clearly demonstrated that while there is
significant variation in residual feed intake when on high energy supply, there is negligible …

Simple Summary This study reports a genomic analysis of purebred Angus and Hereford×
Angus maternal productivity, which is a key driver of sustainable systems. Heterozygosity …

This study investigated factors influencing heifer replacement and cow–calf profitability
using 361 cows (born 2011–2018) at the Lacombe Research and Development Centre …