This study was designed to investigate the extract of compound Chinese medicinalherb(TSKZⅠand TSKZⅡ) that was developed in our group which had effects onpathogenic bacteria and probiotics susceptibility by the method of bacteriostatic test invitro, and compared with feed antlbiotics;then through the breeding test to study theeffects of TSKZⅠand TSKZⅡon broiler performance, meat quality, immune functionand intestinal flora in broilers,in order to study the two compound Chinese herbalextracts whether exit the...