严冬时节气温较低,池水容易结冰,水中溶氧降低,鱼类抗病能力弱,常可引起死亡,造成损失。现将冬季鱼类的死亡原因及防制方法介绍如下。1.病鱼进入越冬池塘冬季鱼种未经认真消毒就放入池塘,或在塘鱼类带病越冬。冬季鱼类在水温低于10℃后基本停食进入冬眠状态,鱼类发病率较低。但 The winter season temperatures are low, the water is easy to icy, dissolved oxygen in the water, fish disease resistance is weak, can often cause death, resulting in loss. Now the causes of winter fish death and prevention methods are described below. 1. Sick fish into the winter ponds Winter species into the pond without serious disinfection, or in the pond fish ill winter. Winter fish in the water temperature below 10 ℃ basically stop feeding into hibernation, the incidence of fish is lower. but