Effect of short (10-or 12-day) or standard (14-or 18-day) periods of estrus suppression with allyl trenbolone on estrus synchronization and fertility in pubertal gilts

摘要

Allyl trenbolone was fed at 20 mg per day for 10, 12, 14, or 18 days, with two 75-mu g injections of D-doprostenol at last feeding at 10 or 12 days to synchronize estrus in gilts. There were no treatment effects on farrowing rate or subsequent litter sizes.