近年来河蟹养殖发展正方兴未艾,其中性早熟现象为河蟹育种中最普遍的难题,这种性早熟个体在河蟹成蟹养殖中,死亡率高,生长僵滞,因此成为无用的废品。为了解决这一困扰蟹种培育中的难题,为养蟹生产培育出体质、规格及质量上乘,且无性早熟的蟹种是当务之急。按江苏省水产三项工程 In recent years, the development of crab farming is in the ascendant. The phenomenon of precocious puberty is the most common problem in crab breeding. The precocious individuals have high mortality and stagnant growth in crab crab farming, which makes them become useless waste products. In order to solve this problem that plagues the breeding of crabs, it is imperative to breed crabs with high quality, high quality and no precocity. Jiangsu Province, according to three projects of aquatic products