Effect Of Several Physiological Regulators On Growth Performance And Related Neuroendocrine Status Of Animals

F89,CS87 and ~ -agonist supplemented consecutively were used to study the effects of them on the growth performance of non-ruminant animals and the rumen metabolism of ruminant animals, meanwhile,daidzein was used to study the effects on growth of male rats and castrated piglets.The research includes two parts. Part I Effect of three physiological regulators supplemented consecutively on the growth performance of non-ruminant animals and the rumen metabolism of ruminant animals. Series 1 Growing rats were fed diet supplemented with 2 mg/kg F89 for 42 days, then with 14.2 mg/kg BWd CS87 for 25 days, finally with 4 mg/kg Cimaterol for 25 days. Compared with control group, F89 increased feed intake 13 .93%(p<0.0 1) per day BW gain 20.25% and decreased feed/gain 5.3 1%;CS87 increased significantly feed intake 10.81% and BW gain 13.00% and decreased feed/gain 1.97%; CIM increased feed intake 4.11% and decreased BW gain 56.86%(P