Abstract: This experiment was conducted to study the effect of Huoxiang Zhengqi herb residues on growth performance,biochemical marker of serum and immune action in heat stress rabbit.60 days old rabbits were randomly divided into 4 groups. Rabbits in trial groups were fed basic diet supplemented with Huoxiang Zhengqi herb residues,and the control group was fed basic diet supplemented without Huoxiang Zhengqi herb residues. The results showed that the diet added with herb residues increased the rabbits ADG,decreased the F/G. The diet added with herb residues increased the content of TP,ALB,CK,IgA,IgM,IgG,T3 and T4 ,but decreased the content of TG and BUN,AST and ALT and in the serum. The results indicated that Huoxiang Zhengqi herb residues could improve the immunity and the production performance,raise the feed efficiency,decrease heat stress.

Key words: herb residues; rabbit; growth performance; heat stress