淡水白鲳由于在我国绝大部分地区不能在自然条件下越冬,在此期间,由于水温低,拉网操作造成鱼体受伤,鱼体极易患水霉病,严重时引起鱼类死亡,给越冬保种及来年养殖造成困难。针对这一不良现象,淡水白鲳在秋末冬初应谨防水霉病的发生、流行。 Due to the inability of winter water in most parts of China to win over the water in winter, during the period, due to the low water temperature, the fish are injured due to the pulling operation. The fish are most likely to suffer from mold and mildew, causing the fish to die in severe cases. Overwintering conservation and farming difficulties in the coming year. In response to this undesirable phenomenon, freshwater catfish in the late autumn and winter should beware of the occurrence of fungal disease, epidemic.