Drug resistance was assessed by percent of optimum anticoccidial activity(POAA),reduction of lesion scores(RLS) and relative oocysts production(ROP).

• 并根据最适抗球虫活性百分率(POAA)病变记分减少率(RLS)、相对卵囊产量(ROP)、三项指标综合判定球虫对上述抗球虫药的耐药性。