The Effect of Diethylstilbestrol, Reserpine, Hydroxyzine and Hygromycin on Growth and Carcass Quality of Lambs

Publisher Website
Google Scholar
Abstract
Two levels of reserpine (5 mcg. and 10 mcg.) and two levels of hydroxyzine (1 mg. and 2 mg.) per lb. of pelleted complete ration had no significant effect on the rate of gain of fattening lambs in drylot. However, the control lambs which received no reserpine or hydroxyzine gained exceedingly well (control not implanted with diethylstilbestrol, 0.54 lb. per day; control implanted with diethylstilbestrol, 0.70 lb. per day). Lambs implanted with 3 mg. diethylstilbestrol gained significantly more than lambs not implanted. The carcasses from the implanted lambs were graded lower than those from the non-implanted lambs. The inclusion of hygromycin at a level of 3.5 mg. hygromycin per lb. total ration had no significant effect on the gains of lambs which were not implanted with diethylstilbestrol, but did result in a significant depression in the gain of lambs that had been implanted with 3 mg. diethylstilbestrol. Castrate males gained more than females. This consistent difference occurred in the presence of, as well as in the absence of, diethylstilbestrol implants, tranquilizers and hygromycin. Copyright © . .

This publication has 0 references indexed in Scilit: