低温寒冷的冬季,养鱼池塘常因水面结冰过厚,导致鱼类被冻死、饿死或闷死。搞好冬季寒害防御,使鱼类安全过冬,可为鱼类冬壮生长、明春放养和提早上市打好基础,使养鱼效益极大提高。多年实践证明,防御鱼类寒害主要有如下几项措施: Cold and cold winter, fish ponds often due to icing over the water, resulting in frozen fish died, starved to death or suffocated. Do a good job of winter cold damage prevention, so that fish safety winter, for the winter winter Zhuangzhuang growth, stocking and early spring market to lay a good foundation, so that the benefits of fish farming greatly improved. Years of practice has proved that there are several major measures to prevent fish chills: