鱼类水霉病 因操作不慎擦伤鱼体,或放养密度过高,鱼类极易患水霉病。病鱼体表形成肉眼可见的灰白色柔软棉絮状物,鱼体负担过重,游动失常,食欲减退,以致衰弱而死。防治:(1)发病鱼池用0.04％食盐溶液和0.04％小苏打合剂全池泼洒。(2)受伤亲鱼可用4％碘酒或1％孔雀石绿软膏涂抹患部。(3)鱼卵可用66.6ppm孔雀石绿溶液浸洗10～15分钟,或用4％福尔马林浸洗2～3分钟。 Fish watermelon cause of accidental abrasion of fish, or stocking density is too high, fish susceptible to water mildew. The diseased fish body forms the gray-white soft cotton wool that is visible to the naked eye. The fish body is overburdened, swimming disorders and loss of appetite, resulting in weakness and death. Prevention: (1) the incidence of fish ponds with 0.04% salt solution and 0.04% baking soda mixture Quanchiposa. (2) injured broodstock can be 4% iodine or 1% malachite green ointment smear affected area. (3) fish eggs can be dipped in 66.6ppm malachite green solution 10 to 15 minutes, or 4% formalin dipped 2 to 3 minutes.