鱼类肠炎病,俗称“烂肠瘟”,在我国流行广、危害大,在水温20℃以上时,水质浑浊,污物较多的水体中最易发生。该病的流行期一般为4—9月份,7—8月高温期最易感染吃食性鱼类,主要危害草鱼、青鱼、鲤鱼等,鲢、鳙鱼偶有发病。由于此病常与烂鳃、赤皮、出血等病并发。死亡率一般为70%以上,养鱼历史较长的地方,或没有经过清塘消毒的老鱼塘,危害更严重。 Fish enteritis disease, commonly known as “rotten bowel disease”, widely popular in our country, endangering large, when the water temperature is above 20 ℃, the water quality is muddy, dirt is more likely to occur in the body of water. The prevalence of the disease is generally 4-9 month, July-August high temperature most susceptible to eating fish, the main harm grass carp, black carp, carp, etc, silver carp, mackerel occasional onset. As the disease often with rotten gills, red skin, bleeding and other diseases complicated. Mortality is generally more than 70%, where there is a long history of fish farming or old fish ponds that have not been disinfected by Qingtang, the damage is more serious.