title: Growth-promotant implants: managing the tools.
abstract: Great contemplation, conversation, and controversy have surrounded the use of growth-promotant implants since their inception in the 1950s. Since the very beginning, the purpose of growth promotants has been to enhance production efficiency, reduce the cost of production, and improve profitability. Changes in our understanding of the physiologic mechanisms involved in growth promotion have not altered this fundamental purpose. With enhanced knowledge of the impact of various compounds and doses on different classes of animals, and with the introduction of numerous products providing those compounds and doses, planning implant programs has become difficult. However, the net return from a well-designed implant program may mean the difference between profit and loss on a given set of cattle.
authors.affiliation: Kansas State University, 125 Call Hall, Manhattan, KS 66506-1600, USA. cdr3@oznet.ksu.edu
authors.forename: Chris
authors.initials: C
authors.lastname: Reinhardt
mesh_terms: D045930:Anabolic Agents / Q000008:administration & dosage* / Q000009:adverse effects; D000822:Animal Husbandry / Q000191:economics / Q000379:methods*; D000818:Animals; D001835:Body Weight / Q000187:drug effects; D002417:Cattle / Q000254:growth & development*; D003362:Cost-Benefit Analysis; D004343:Drug Implants; D004967:Estrogens / Q000008:administration & dosage / Q000009:adverse effects; D006133:Growth Substances / Q000008:administration & dosage* / Q000009:adverse effects; D014204:Trenbolone Acetate / Q000008:administration & dosage / Q000031:analogs & derivatives
chemical_list: D045930:Anabolic Agents; D004343:Drug Implants; D004967:Estrogens; D006133:Growth Substances; D014204:Trenbolone Acetate