Effect of different levels of Zilpaterol hydrochloride in three weeks of growth finisher on growth performance in Japanese Quails

The purpose of this study was to evaluate the effect of Zilpaterol hydrochloride on the growth performance, carcass quality and blood parameters with128 male quails at 26 days of age were divided into four treatments which each treatment consists of four replicates of 8 birds. The birds received daily 0, 0.2, 0.225, or 0.25 mg/kg of live weight d−1zilpaterol. After three days of withdrawing zilpaterol, two birds were slaughtered for carcass evaluation. Results showed that zilpaterol hydrochloride supplementation improved feed conversion ratio (FCR) (P