Effects of Chinese Herb Medicine on Performance,Immune Function and Anti-oxidant Capacity of Broiler

720 1-day-old AA broilers were randomly allocated to 4 groups to study the effects of Chinese herb medicine additive on the performance and immune function through the datum of growth performance,immune organ and anti-oxidant index of broilers.The treatments of four diets were the basal diet(control,group 1);1.5kg/t,2kg/t Chinese herb medicine were added into the starter and finisher diets(group2,group3) respectively and 2kg/t,1.5kg/t Chinese herb medicine were added to the starter and finisher diet(group 4) respectively.The results showed that different levels of Chinese herb medicine improved the performance and the development of immune organ of 1-21-day broilers.The bursa of fabricius and its index,spleen and its index of group 3 were increased significantly(P0.05)compared with the control group.The feed conversion rate,body weight gain of finisher broilers of group 3 and 4 were improved by 4.9% and 6.8%、4.5% and 7%.Addition of Chinese herb medicine promoted the development of immune organ,enhanced the anti-oxidant capacity of plasma and the economic benefits of production of broiler.