淡水白鲳为热带、亚热带鱼类,水温低于12℃时,就会自然死亡。水温18―19℃时鱼可以存活,但易生病,导致大批鱼的死亡。因此必须做好越冬保种及疾病防治工作。我们在2000年―2004年间每年对淡水白鲳越冬期加强做好保种保温、疾病防治技术措施,取得可观的经济效益,鱼种成活率平均达93%以上。 Freshwater pomfret is tropical, subtropical fish, the water temperature below 12 ℃, it will naturally die. When the water temperature is 18-19 ℃, the fish can survive, but it is easy to get sick, resulting in the death of a large number of fish. Therefore, we must do a good job overwintering conservation and disease prevention and control work. During 2000-2004, we strengthened the measures of keeping warm and keeping warm and disease prevention and treatment every year during the wintering period of freshwater white catfish, and achieved considerable economic benefits. The average survival rate of fish species was over 93%.