For more than 60 y, beef cattle producers have safely used various types of growth-
enhancing technology (GET) such as steroidal implants with anabolic activity and orally …

Feed provision is one of the greatest costs of beef production and, with the increasing costs
of feed, will remain so for the foreseeable future. Improvement in efficiency has the potential …

New laboratory and animal sampling methods and data have been generated over the last
10 yr that had the potential to improve the predictions for energy, protein, and AA supply and …

ABSTRACT A 2× 2 factorial study evaluated effects of cow wintering system and last
trimester CP supplementation on performance of beef cows and steer progeny over a 3-yr …

ABSTRACT A concern of the USEPA is the volatilization of NH3 from animal manure and
CH4 produced from ruminal fermentation. Excess N in the environment has been associated …

A deterministic and mechanistic growth model was developed to dynamically predict growth
rate, accumulated weight, days required to reach target body composition, carcass weight …

We summarized experimental data to quantify the change in final BW due to a particular
implant strategy when cattle are adjusted to the same final body composition. The database …

Records collected between 1997 and 2010 were used to determine the effect of calving
period on heifer (n= 1,019) and steer (n= 771) progeny from the Gudmundsen Sandhills …

The objectives of this study were to 1) quantify effects of metaphylactic treatment for bovine
respiratory disease (BRD) on growth performance, carcass characteristics, and lung lesion …

Mature Angus-cross beef cows (n= 228) were used to evaluate effects of prepartum dietary
energy source on postnatal growth and carcass composition of progeny in a 2-yr study …