Date Available
12-7-2011
Year of Publication
2008
Degree Name
Master of Science (MS)
Document Type
Thesis
College
Agriculture
Department
Crop Science
First Advisor
Dr. Glen E. Aiken
Second Advisor
Dr. C. T. Dougherty
Abstract
Fescue toxicosis can produce negative effects on animal weight gain and physiology. Sixty-four steers were grazed on endophyte-infected (E+) KY-31 tall fescue for 77 days in 2007 and sixty steers grazed for 86 days in 2008 to evaluate interactions with implantation of steroidal implants and concentrate feeding on performance and physiology of yearling steers. Steers were stratified by body weight for assignment to six, 3.0-ha toxic tall fescue pastures. The main plot treatment of with or without pelleted soybean hulls (SBH) were randomly assigned to pastures. Pelleted SBH were group-fed to provide daily consumptions of 2.3 kg/steer/d (as fed). Sub-plot treatments of with or without ear implantation with steroid hormone (200 mg progesterone--20 mg estradiol were assigned to groups of five or six steers within each pasture. Average daily gain in the experiment showed an additive effect of feeding SBH and implanting (P
Recommended Citation
Carter, Jessica Meagan, "PERFORMANCE AND PHYSIOLOGY OF YEARLING STEERS GRAZING TOXIC TALL FESCUE AS INFLUENCED BY CONCENTRATE FEEDING AND STEROIDAL IMPLANTS" (2008). University of Kentucky Master's Theses. 569.
https://uknowledge.uky.edu/gradschool_theses/569
