鲤鱼是北方地区主要的养殖鱼类品种。传统的鲤鱼商品鱼养殖方式普遍采取春放秋捕,由于秋季商品鱼集中上市,导致了卖鱼难、鱼价低,效益不高。针对传统的养殖方式存在的问题,黑龙江省推广了鲤鱼复养技术,也就是在1年内重复两次养殖:先养一茬商品鱼,上市后,再养一茬鱼种。 Carp is the major cultured fish species in the north. Traditional carp fish breeding methods commonly used in the spring to bring the autumn harvest, due to focus on the autumn listing of fish products, leading to the hard fish, fish prices are low, the benefit is not high. In view of the problems existing in the traditional farming methods, Heilongjiang Province has promoted the carp rearing technique, that is, breeding twice in a year: Raising a crop of fish first and then raising a stubble of fish.