Avoparcin is a glycopeptide antibiotic produced by a strain of streptomyces candidus with activity against certain gram positive organisms. It has been reported to reduce the ratio of acetate to propionate produced during rumen fermentation and to improve weight gain and feed efficiency of feedlot cattle. This study was conducted to evaluate the effects of 30, 45 and 60 grams per ton of avoparcin and 30 grams per ton of monensin in the feed on weight gain, feed utilization and carcass quality of finishing heifers over a 140-day feeding period.
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Department of Animal Science, Agricultural Experiment Station, South Dakota State University
Embry, L. B.; Bush, L. F.; and Goetz, M. J., "Effects of Avoparcin on Performance of Feedlot Heifers" (1980). South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1980. 10.