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鲤鱼Cyprinus carpio在鱼类中饲养历史最早,在世界上的分布广泛,已知有许多地方变种或品种。为了对鲤鱼品质进行遗传改良,首先科学地阐明这些品种的经济性状是很重要的。欧洲产的养殖种中,以鳞片出现的方式,分为鳞鲤(nnSS nnSs)、线鲤(NnSS NnSs)、镜鲤(nnss)和革鲤(Nnss)。其中具有Nn因子的线鲤和革鲤比具有nn因子的镜鲤和鳞鲤的生长与成活率都低,而具有NN因子者为致死性已有报导(Kirpichnikov 1961,Schaperclaus 1961,Wohlfarth等1963)。Moav等(1974,1975)、Wohlfarth等(1975a,1976b)及
Carp Cyprinus carpio is the oldest kept in fish and widely distributed in the world, and many local varieties or varieties are known. In order to genetically improve carp quality, it is important to first scientifically elucidate the economic traits of these breeds. In Europe, aquaculture species are classified into nnSS nnSs, nnSS NnSs, nnss and nnss in the form of scales. Among them, line carp and leather carp with Nn factor have lower growth rate and survival rate than those with nn factor, while lethal factor with NN factor has been reported (Kirpichnikov 1961, Schaperclaus 1961, Wohlfarth et al. 1963) . Moav et al. (1974, 1975), Wohlfarth et al. (1975a, 1976b) and