目前我省大部分养鱼池塘,结冰期为2—3个月,有的冰层厚达2尺左右,如管理不好,会造成鱼类的大批死亡。因此,搞好鱼类的越冬管理是很重要的。一、越冬死亡原因越冬期间造成鱼类死亡的原因很多,主要是:1.冬季池水缺氧。由于池塘杂草、淤泥多,土壤保水力差,结冰后水位下降过 At present, most fish ponds in our province have a freezing period of 2-3 months and some ice sheets are about 2 feet thick. If not managed well, a large number of fish will be killed. Therefore, it is very important to do a good job of winter management of fish. First, the reasons for the death of overwintering cause of death during the winter fish for many reasons, mainly: 1. Winter pool water oxygen. Due to pond weeds, silt and more, poor soil water retention, water level dropped after freezing