The effect of Chinese herbal medicine formulas Cuzhangsan on growth of broiler and levels of serum hormone

Three hurdred one day healthy broilers were choosed and divided them into ten groups separately,use 0.5%,1%,2% dose of Chinese herbal medicine which compound with Cuzhangsan Ⅰ,Ⅱ,Ⅲ to engage in contrast test of raise broilers,at 1 d,14 d,28 d,56 d survey weight and comsume capacity for feed of broilers of each groups.at 28 d and 56 d, the level of concentration of serum hormone were detected.The result showed that Chinese herbal medicine additive of each recipe has different degree in increase the growth speed of broilers and reduce the rate of breed and meat.The level of GH is lower than the control group,but the levels of T_3 and T_4 is higher,The best effect of accelerate growth is Cuzhangsan I,and dosage of 20%.