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在罗非鱼的商品鱼养殖中,常常因罗非鱼生长期间的性早熟和繁殖过盛而影响商品鱼的重量和产量。为此,寻求在整池鱼中商业化生产全雄性罗非鱼的方法,将可在产量上获得颇丰的经济效益。英国威尔士水生生物研究所在大规模培育全雄罗非鱼方面研究出一套行之有效的技术:先用雌激素对雄性罗非鱼进行诱导性转化,然后用性转化的雌鱼与正常雄亲鱼配对,生产出的子代为 YY 型雄性遗传罗非鱼,再将它们与正常的雌性配对,生产出的后代则为正常的 XY 型雄性鱼。用这种方法培育的整群
In the fish farming of tilapia, the weight and yield of the fish are often affected by precocious puberty and overgrowth during the growth of tilapia. For this reason, the search for a method of commercializing whole-male tilapia in whole-pond fish will yield considerable economic benefits. British Institute of Hydrobiology Wales to develop a large-scale whole-breed tilapia has developed an effective set of techniques: first with estrogen male tilapia induced transformation, and then use sexually transformed females and normal male The broodstock paired to produce offspring of YY male genetic tilapia, which were paired with normal females to produce offspring of normal XY male fish. The whole cluster that is bred in this way