近十年来，河蟹养殖发展迅猛。全国有２０多个省市发展了河蟹养殖业，苗种需求旺盛。虽然从前年开始，商品蟹价格大幅下挫，加上人工苗种数量持续增加，从而引起河蟹苗种价格下滑，人工育苗的风险大增，但就目前的价格水平，只要确保育苗技术过关，经营得当，中华绒螫蟹的人工 The past decade, the rapid development of crab farming. There are more than 20 provinces and cities across the country developed crab farming, seed demand. Although prices of commodity crabs have dropped sharply since the previous year and the number of artificial seedlings has continued to increase, the price of crab seedlings has dropped and the risk of artificial seedling has greatly risen. However, as far as the current price level is concerned, , Chinese crab crab artificial