一、早清塘、早消毒、早放养。在12月末就要将鱼池清整、消毒。在立春前选择晴天没有西北风的天气,将鱼种投放。冬天气温低,鱼的活动能力差,鳞片紧密,不易脱落,在捕捞、运输等操作过程中不易受伤,可减少水霉病、赤皮病的发生,在寒冷的冬季水中寄生虫较少,可减少寄生性病原体的 First, early Qing Tong, early disinfection, early stocking. At the end of December will fish pond cleaning, disinfection. In the spring before the selection of sunny weather without the northwest wind, the fish species. Winter temperatures are low, the fish activity is poor, the scales close, not easy to fall off, fishing, transportation and other operations are not easy to hurt, can reduce the water mildew disease, the occurrence of red-skin disease, less parasites in cold winter water can be Reduce parasitic pathogens