Abstract: A study was conducted to evaluate the effects of on performance and Intestinal Bacilli ,one hundred twenty twenty-one-days of Early Weaned Piglets were randomly assigned to five treatments with three replicates.there were eight piglets perreplicate. Feed and water were provided ad limbitum.All of piglets were fed with a common corn soybean meal based diet. Treatments were as follows:the control group(no Saccharicterpenin and no Flavomycin),the group treatment Ⅱ contained 250 mg/kg Saccharicterpenin,the group treatment Ⅲ contained 500 mg/kg Saccharicterpenin, the group treatmentⅣcontained 250 mg/kg Saccharicterpenin plus 4 mg/kg Flavomycin , the group treatment Ⅴcontained 4 mg/kg Flavomycin.The results showed that:Supplemented with Saccharicterpenin the ADG and ADFI of piglets were higher,compared to control group,the average final wt of treatment Ⅱ，Ⅲ，Ⅳ，Ⅴwas higher 4.00%，12.30%,5.21%,2.64%;the ADG of group treatment was significantly improved(P<0.05).FCR was highter when 250 mg/kg Saccharicterpenin and Flavomycin were combined than alone.

Key words: saccharicterpenin; flavomycin; early weaned piglets; perforormance; intestinal bacilli