Protein levels in beef cattle finishing diets: industry application, university research, and systems results.

Consulting nutritionists were surveyed to determine current formulation and management practices for finishing beef cattle. Among the six consultants surveyed, percentage of CP in finishing diets ranged from 12.5 to 14.

Effects of previous grazing treatment and consumption of locoweed on liver mineral concentrations in beef steers.

Twelve Hereford steers (average BW = 231 kg) that had previously grazed native rangeland (Range) or irrigated winter wheat pasture (Wheat) were allowed to graze locoweed-infested rangeland from April 1 to June 9, 1994 (six steers/previous grazing treatment). Relative consumption level of locoweed and other forage classes was measured as observed bites per steer. Liver biopsy and whole blood samples were obtained from each steer before and after grazing.

Effects of arrival medication with tilmicosin phosphate on health and performance of newly received beef cattle.

Three trials were conducted to evaluate the use of tilmicosin phosphate (Micotil) as a prophylactic medication for newly received, stressed beef cattle. In Trial 1, 57 beef calves (average initial BW = 170 kg) were shipped to the research feedlot from Tennessee and either given no antibiotic at processing or treated with Micotil at 10 mg of tilmicosin phosphate/kg of BW. During a 28-d receiving period, treatment at processing with Micotil did not affect daily gain (P < .