每年12月至次年2月间,在江南和江北地区,亲鱼饲养进入越冬期,此时期的池塘水温降低,亲鱼活动减弱,新陈代谢缓慢,摄食量减少。因而,在越冬期间亲鱼饲养方法也要相应地改变:主荞鲢、鳙亲鱼的池塘,在越冬之前要施足基肥,趁水温未降低之前,抓紧培肥水质。进入越冬期后,每周施人畜粪一次,每次可在池塘向阳处堆施粪肥50—75公斤;也可设饵料台,投喂糠饼、熟红薯等精料。主养草亲鱼的池塘,由于冬季草料缺乏,可投喂一些精料,如糠饼、菜饼、熟红薯等,每周投喂数量为亲鱼体重的10—15％。越冬期由于雨水较少,常出现冰冻,要及时 Between December and February of each year, in the areas of Jiangnan and Jiangbei, broodstock reared into the wintering period. During this period, the pond water temperature decreased, the broodstock activity decreased, the metabolism was slow, and the food intake decreased. Therefore, during the winter, the method of feeding the broodstock should also be changed accordingly: the main buckwheat, silver carp and broodstock ponds should be applied with foot-based fertilizer before overwintering, and pay close attention to water quality before fertilization. After entering the wintering period, livestock and poultry manure is applied once a week, 50-75 kilograms of manure can be piled up in the sunny part of the pond each time. Feed bait stations can also be set up to feed bran cakes and sweet potatoes. Due to the lack of winter fodder, the ponds of the main broodstock can be fed with some fine materials such as bran cake, vegetable cakes and cooked sweet potatoes. The number of broodstock fed per week is 10-15% of that of the broodstock. Overwintering due to less rainfall, often appear frozen, to be timely