冬季,由于池塘易结冰,水中溶氧差,常给鱼类带来许多不利因素,甚至造成鱼类死亡,给养殖户造成不小的损失。下面介绍鱼类冬季几种死亡原因及防治方法。1越冬池塘存在病鱼或致病菌发生病害的鱼类未经认真治疗或不消毒就放 In winter, due to the icing of the pond and the poor dissolved oxygen in the water, it often brings many unfavorable factors to the fish and even causes the death of the fish and causes considerable losses to the farmers. Here are some reasons for the death of fish in winter and prevention methods. 1 overwintering ponds diseased fish or pathogenic bacteria exist in fish without serious treatment or disinfection