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鲤鱼杂交优势的利用,是一项能在淡水养鱼生产中广为应用的科研成果。推广养殖杂交鲤,能因水制宜,扩大养殖品种,增加产量,改善市场鱼货的质量。现在,湖南省推广的有三条杂交鲤:荷源鲤——荷包红鲤鱼(雌)与与源江野鲤(雄)杂交一代、芙蓉鲤——散鳞镜鲤(雌)与兴国红鲤(雄)杂交一代和岳鲤——荷包红鲤鱼(雌)与湘江野鲤(雄)杂交一代。它们的共同特点是生长快:荷源鲤比母本快42—63％,比父本快18—30％;芙蓉鲤比母本快66％,比父本快33％;岳鲤比父本快50—100％,比母本快25—50％。在肥水塘套养,每亩放杂交鲤夏花20—30尾,当年一尾能长到1.5市斤左右。在精养塘中套养,可不增加投饵和用工,也不影响其它鱼的产量,稳产保收。这些杂交
The advantage of carp hybridization is a widely used scientific research achievement in freshwater fish farming. Promote the breeding of hybrid carp, due to the water system should be to expand the breeding varieties, increase production and improve the quality of fish market. At present, there are three hybrid carp species popularized in Hunan Province: the generation of crossbred carp - female red carp (female) and the source carp (male) hybrid generation, Furong carp - ) Hybrid generation and Yue carp - red purse carp (female) and Xiangjiang wild carp (male) cross generation. Their common feature is the rapid growth: Dutch source carp 42-63% faster than the mother, 18-30% faster than the father; Lotus carp 66% faster than the mother, 33% faster than the father; Yue carp than the father Faster 50-100%, 25-50% faster than the female parent. Nesting in the fertilizer ponds, hybrid acreage of carp to spend 20-30 months of summer, when a can grow to about 1.5 kilos. Nesting in the intensive pond, without increasing the feeding and labor, does not affect the output of other fish, stable yield. These hybrids