Effect of 3 additives on the growth performance and serum biochemical parameter of Guangxi local chicken

Three hundred one-day-old local female chickens were randomly divided into five groups.The control group was with the basal diet,the other four groups were fed with the basal diets added with 0.30% Stacidem,1% Chinese herb medicine,0.30% Stacidem plus 1% Chinese herb medicine,and 5 mg/kg flavomycin respectively.After 30 days of feeding,the growth performance and serum biochemical indexes were determined.The results showed that adding Chinese herb medicine,Stacidem,flavomycin or Chinese herb medicine plus Stacidem could improve average daily gain(ADG) and feed conversion rate(FCR) of the chicks(P0.05).Chinese herb medicine and Stacidem had similar effect with flavomycin on improving ADG and FCR,which indicated that it was feasible for Chinese herb medicine or Stacidem to replace flavomycin in local chicks diet.The content of serum calcium,phosphorus,total protein,albumin,and the activity of alanine aminotransferase(ALT) and alkaline phosphatase(ALP) were not significantly affected by the supplement of Chinese herb medicine,Stacidem and flavomycin.Compared with control,the activity of aspartate aminotransferase(AST) decreased in 1% Chinese herb medicine group and 5 mg/kg flavomysin group.By adding Chinese herb medicine,Stacidem or flavomycin in diet,the content of uric acid in serum tended to increase(P0.05).