Thesis - Open Access
Master of Science (MS)
Robbi H. Pritchard
Ranchers are continuously looking for ways to produce heavier, healthier calves at sale time. There are many on-ranch management practices performed to accomplish this, including early weaning, creep feeding, preconditioning and implanting. However, over time results may be variable. Before deciding on a certain method for handling a calf crop, ranchers must carefully evaluate their own situation, including facilities, labor, feed and pasture conditions. Feedlot operators should also be aware of previous management of calves since preshipment practices may affect performance in the feedlot. In an effort to evaluate the preconditioning program in South Dakota, performance of preconditioned and nonpreconditioned calves was monitored on the ranch and in the feedlot. Preconditioned calves have been noted for their ability to start on feed quickly and remain healthier during the initial days in the lot, but overall performance to slaughter must also be considered. This study may assist the rancher and feedlot operator in estimating the economic value and production efficiency of preconditioned calves. The effects of diet energy density, supplemental antibiotic feeding and implanting with zeranol on calf performance and health were also determined.
Library of Congress Subject Headings
Beef cattle -- Feeding and feeds
Calves -- Preconditioning
Beef cattle -- Growth
Beef cattle -- Performance records
Number of Pages
South Dakota State University
Swann, Janie Katrin, "Effect of Preconditioning on Performance and Health of Feeder Steers" (1987). Electronic Theses and Dissertations. 4480.