河蟹学名中华绒螯蟹,属名贵淡水产品,味道鲜美,营养丰富,尤其是大规格河蟹(雌150g以上、雄200g以上)以其个头大,肉多鲜美而深受国内外消费者的喜爱。目前,大规格河蟹的生态养殖在我国正处于推广阶段,本文主要讨论大规格河蟹生态养殖的关键技术。1.亲本提纯复壮提纯复壮是大规格河蟹生态养殖中的第一步,也是非常关键的一步。原来的河蟹养殖只是直接地 Crab scientific name Eriocheir sinensis, is a rare freshwater products, delicious, nutritious, especially the large size crab (female 150g above, over 200g male) with its big, meat and delicious and loved by consumers at home and abroad. At present, the ecological culture of large-scale crabs is in the promotion stage in our country. This article mainly discusses the key technologies of large-scale crabs ecological breeding. 1. Parents Purification Rejuvenation Rejuvenation is a large-scale crab eco-farming in the first step is also a very crucial step. The original crab farming is just directly