A.S. Series 74-3
Numerous experiments during the past several years have shown that implanting feedlot steers or heifers with diethylstilbestrol (DES), zeranol or Synovex results in an increase in rate of gain with improved feed efficiency. Comparisons between the three products under various conditions are more limited. Therefore, comparative effects of DES, zeranol and Synovex-S were tested in a growing experiment where steers were full-fed corn silage with 2 lb. per head daily of protein supplement for a period of about 3 months.
Number of Pages
Department of Animal Science, Agricultural Experiment Station, Cooperative Extension Service, South Dakota State University
Embry, L. B. and Swan, W. S., "Diethylstilbestrol, Zeranol or Synovex-S Implants for Growing Steers" (1974). South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1974. 4.