在虹鳟受精卵孵化过程中,霉菌游动孢子伺机附着于坏死卵上,并开始发芽形成菌丝。菌丝除寄生于坏死卵外,还可蔓延侵入附近的正常卵,如不及时处理,会导致周边鱼卵感染水霉,黏连更多的正常卵。水霉病的防治一直是水产养殖病害防治中较为棘手的一个难题,自2002年我国全面禁止孔雀石绿以来,有效防治水霉病的药物长期处于空白,同时孔雀石绿 During rainbow trout fertilized egg hatching, mold zoospores are opportunistically attached to necrotic eggs and begin to germinate to form mycelium. In addition to mycelium parasite necrosis of eggs, but also can invade the invasion of nearby normal eggs, if not treated in time, will lead to the surrounding fish eggs infected with mold, sticky more normal eggs. Prevention and control of watery mildew disease has always been a difficult problem in the prevention and treatment of aquaculture diseases. Since the ban on malachite green in our country in 2002, the effective prevention and control of watery mildew has been in the blank for a long time. At the same time, malachite green