中华鳖（Ｔｒｉｏｎｙｘ ｓｉｎｅｎｓｉｓ）是我国淡水名优养殖的主要品种之一。近年来由于养殖面积不断扩大，养殖强度逐渐增加，养殖集约化程度日渐加强，中华鳖的病害也越来越多，有的已十分严重，给生产带来了较大的损失［１］。有的鳖农为了提高药物防治的效果，盲目加大 Trionyx sinensis is one of the main varieties of freshwater aquaculture in China. In recent years, due to the continuous expansion of the breeding area, the intensity of aquaculture is gradually increasing, and the intensification of aquaculture is increasingly strengthened. The disease of soft-shelled turtle is also getting more and more, and some of them have been very serious, which has brought great losses to production [1]. Some turtle farmers in order to improve the effectiveness of drug control blindly increased