The effect of extractives on lustrating Trichodinella of fish was also studied.The results showed that the alkaloid from Sophora flavescens Ait could lustrate Trichodinella ninuta efficiently.

• 运用药理学方法对得到的生物碱进行了抗鱼体车轮虫试验，结果显示：苦参生物碱能对鱼体鳃部车轮虫起到有效的驱杀作用；