Effects of Feeding Stilbestrol to Lactating Dairy Cows

Abstract
Diethylstilbestrol was fed at the rate of 10 and 15 mg per day to 11 lactating cows for 60 days. No effect on level or persistency of milk production was observed. Evidence was obtained indicating a slight improvement in weight gains during the treatment and post-treatment periods. No physical abnormalities or undesirable side effects in reproductive activities were found.