据对无锡郊区和吴江市重点养鱼区跟踪调查，2000年鳜鱼发病率达90％以上，死亡率70％，部分塘口达到95％。从100克到400克重的个体均有发病现象，给养殖户造成了重大的经济损失。本中心对百余亩鳜鱼池的死亡原因和防治方法总结分析如下，供养殖户参考。1 发病症状通过对多处发 According to the survey of key fish culture areas in Wuxi suburbs and Wujiang City, the incidence of catfish reached over 90% in 2000 with a mortality rate of 70% and some of them reached 95%. From 100 grams to 400 grams of weight of individuals are the incidence of disease, farmers have caused significant economic losses. The Center of more than 100 acres of fish pond death causes and prevention methods summarized as follows, for farmers reference. 1 symptoms through multiple hair