宁夏地区,在自然条件下5月中下旬以后才能生产出适宜放养的乌仔鱼苗,这使得当年鱼种规格小,越冬成活率低。近年来,鲤鱼生产者常从南方空运乌仔鱼苗以改变这一现状,但空运鱼苗成本高,而且很易随鱼苗带入病菌。笔者于2004年3～4月开展了鲤鱼早春人工繁殖试验,以达到鱼苗早放、增 Ningxia region, under natural conditions in late May to produce a suitable stocking Wu Zi fry, which makes the year of small fish species, overwintering survival rate is low. In recent years, carp producers have often flown their fry seedlings from the South to change the status quo, but airfishing fry is costly and can easily be introduced into germs by fry. The author carried out artificial propagation experiment of carp in early spring from March to April in 2004,