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草鱼又名草鲵、鲵鱼,属鲤形目、鲤科、雅罗鱼亚科、草鱼属。草鱼因其生长快、成本低、价值高等特点,一直受到养殖者和消费者的青睐,是池塘淡水养殖的主要放养品种。因此,草鱼的鱼苗繁殖也越来越受到人们的重视。在草鱼的人工繁殖过程中,必须要识别草鱼的雌雄.辨认草鱼的性别,一般均采取触摸胸鳍追星(生殖季节)和观察胸鳍及腹部鳞片的形态(非生殖季节)来区分。 1.触摸胸鳍。在生殖季节(4—6月),雄性草亲鱼胸鳍内侧(靠近鱼体的一面)前面的一些鳍条上生有排列很密的向后倾斜的许多细小的角质突起叫做“珠星”或“追星”,这些珠星肉眼不易看清,但用手触摸有粗糙的感觉。雌性草亲鱼的胸鳍仅在靠近尖端的部分上有追星,
Grass carp, also known as grass mullet, mullet, is a common carp, Cyprinidae, Arroyo subfamily, grass carp. Due to its rapid growth, low cost and high value, grass carp has always been favored by farmers and consumers and is the main stocking variety for pond freshwater aquaculture. Therefore, grass carp fry breeding more and more people’s attention. In the process of artificial reproduction of grass carp, the male and female of the grass carp must be recognized. The discrimination of the grass carp is generally based on the contact of the pectoral fin starving (reproductive season) and the observation of the morphology of pectoral fins and abdomen scales (non-reproductive season). Touch the pectoral fins In the reproductive season (April-June), a number of finely-oriented rearwardly-laden keratin cells are arranged on some rays in front of the male broodstock pectoral fins (near the side of the fish) Chasing stars ", these pearls naked eye is not easy to see, but the touch of a rough feeling. Female grass broodstock pectoral fins only in the vicinity of the tip part of chasing stars,