Abstract
The beneficial effects of anabolic implants with respect to feedlot performance and carcass weight are nearly unequivocal. Although individual prospective studies may have concluded that there are no significant differences between implant dosages, modern production economics demand that any differences, however small, must be gleaned if they are real. The objective of this study was to conduct a meta-analysis of existing data from peer-reviewed as well as industry sources to compare the effects of different doses of anabolic implants on feedlot performance and carcass traits of steers.
Highlights
The beneficial effects of anabolic implants with respect to feedlot performance and carcass weight are nearly unequivocal
Individual prospective studies may have concluded that there are no significant differences between implant dosages, modern production economics demand that any differences, small, must be gleaned if they are real
The studies included in the meta-analysis reported data on some or all of the following variables: initial body weight, days of implant activity, number of pens or individual animals per treatment, average daily gain, feed:gain, dry matter intake, dressing percentage, hot carcass weight, yield grade, and percentage Choice or better
Summary
(2014) "High-dose anabolic implants are not all the same for growth and carcass traits of feedlot," Kansas Agricultural Experiment Station Research Reports: Vol 0: Iss. 1.
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