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三元杂交鲤是芙蓉鲤为母本、资江野鲤为父本杂交而成的杂种一代。芙蓉鲤是省水产科学研究所七十年代培育的优良养殖对象,但其体短、腹部膨大,利用资江野鲤体较长、腹部较小等优点,以求改良芙蓉鲤的不良性状;同时通过三系杂交有可能获得更强的杂种优势。一、研究材料与方法 1.杂交程序与方法:以散鳞镜鲤为母本与兴国红鲤为父本杂交获得芙蓉鲤,培育至二龄达性成熟,再以其为母本与资江野鲤父本交杂即获三元杂交鲤。采用人工催产、自然产卵受精的方法,把粘附受精卵的鱼巢移放在砖石水泥结构的孵化池或0.2亩左右的土池进行静水孵化。
Three-way hybrid carp is Furong carp as the female parent, Zijiang Cyprinus carp as a cross between parents of the hybrid generation. Furong carp is a good breeding object cultivated by the Institute of Fisheries Sciences in the seventies, but its body is short and its abdomen is swollen. It uses the advantages of longer length and smaller abdomen of the carp in order to improve the bad traits of Furong carp. At the same time, Three-line crosses are likely to gain stronger heterosis. First, the research materials and methods 1 hybridization procedures and methods: with Scattered mirror carp as the mother and Xingguo red carp as the male parent to obtain Furong carp, up to the second age of sexual maturity, and then as its mother and Zi Jiang Ye Carp Cypriot hybrid get ternary hybrid carp. The method of artificial spawning and natural spawning fertilization is used to move the nest of the adhering fertilized eggs to the hatching pond with masonry structure or the soil pool of about 0.2 mu for static water hatching.