一、前言对于细菌性鱼病的诊断,从来都是采用从病鱼体中分离、鉴定病原体,即所谓细菌培养法的。此法往往需要1～2周时间才能得到诊断结果。然而,在这期间,鱼随着病情的恶化,食欲消失,口服药物已没有效果,生产常因此受重大损失。另外,对于大量的鱼病进行诊断,因为细菌培养法操作过繁,生产试验场及普通的鱼病防疫站都很难进行。于是,需要寻求一种简便而迅速的鱼病诊断方法。最近,由于混合感染症增加,病状更加复杂,一尾鱼体 First, the preamble For the diagnosis of bacterial fish disease, has always been used from diseased fish body separation, identification of pathogens, the so-called bacterial culture. This method often takes 1 to 2 weeks to get the diagnosis. However, during this period, the fish lost its appetite as the condition deteriorated and oral medication had no effect and the production was often severely damaged. In addition, the diagnosis of a large number of fish diseases, because of bacterial culture method is too complicated, the production of test sites and ordinary fish epidemic prevention station are very difficult. So, need to seek a simple and rapid method of fish disease diagnosis. Recently, due to the increase of mixed infections, the symptoms are more complex, a fish body