Methods: Adult female KM mice received 1% carboxymethyl cellulose (CMC) with 1,1.5,2 ml/kg the compound of neem oil orally,respectively. After one week,adult male KM mice lumped with experimental femal KM mice,the rate of pregnancy was statuted.

• 方法:昆明种雌性小鼠分别每日灌胃含1ml/kg、1.；5ml/kg和2ml/kg的印楝油复合物的1%25羧甲基纤维素(CMC)；灌胃1周后；与正常性成熟雄鼠合笼。