近两年,江苏、安徽、浙江、上海等地区相继暴发白鲫出血病,该病来势凶猛,传染性极强,6—9月广泛流行。此病先从白鲫发起,两、三天后大量死亡,死亡率达70～80%。现已证明该病由细菌引起。今年江都县昭关林场周国余家一面积为11亩混养白鲫的池塘,6月下旬开始发现白鲫、鳊鱼、花白鲢 The past two years, Jiangsu, Anhui, Zhejiang, Shanghai and other areas have been outbreak of white carp bleeding, the disease fierce, highly infectious, 6-September widespread. The disease first started from white carp, a large number of two or three days after death, the mortality rate of 70 to 80%. It has been shown that the disease is caused by bacteria. This year Jiangdu County Zhao Guan woodland Zhou Guo Yu an area of ​​11 acres of polyculture white crucian carp pond in late June began to find white carp, catfish, flower silver white carp