春节过后,江苏溧阳、金坛等地发生多起鲫鱼春片鱼种死亡现象。最早在刚过春节就开始死鱼,死鱼数量迅速增多,来势较猛。主要表现为地区性发生,发病面积大,死鱼数量多而集中,死亡率10%～20%,严重者可达40%以上,损失较大。发病池均为越冬后的春片鱼种,鱼种规格为100～200克。经诊 After the Spring Festival, Jiangsu Liyang, Jintan and other places occurred more than the carp fish species died. As early as the beginning of the Spring Festival dead fish, the rapid increase in the number of dead fish, more fierce. Mainly as a regional occurrence, the incidence of a large area, the number of dead fish and more concentrated, the mortality rate of 10% to 20%, severe cases up to 40% or more, a greater loss. The incidence of ponds are overwintering spring species, fish species specifications for 100 to 200 grams. After consultation