目前,罗非鱼成鱼养殖季节已到,各地将陆续投放苗种。在罗非鱼养殖过程中,常见到三种病症相似、且对罗非鱼危害较大的疾病。为减少因病害造成的损失,现将这三种疾病的症状及防治方法介绍如下,供广大同仁参考。一、爱德华氏菌病发病原因:由迟钝爱德华氏菌感染引起。疾病症状:病鱼 At present, tilapia adult fish breeding season has come, will gradually put seedlings around. In the process of tilapia farming, it is common to find three diseases that are similar and have a greater risk of tilapia. To reduce the damage caused by the disease, the symptoms of these three diseases and prevention methods are introduced below, for the majority of my colleagues for reference. First, the incidence of Edwardsiella disease: caused by the delay of Edwardsiella infection. Symptoms of disease: sick fish