河蟹是我国的一种珍贵水产品,但资源丰歉不定,不能适应养蟹业的发展。省淡水水产研究所在1977年取得河蟹人工繁殖小试成功的基础上,于1978年起,承担了河蟹人工繁殖的中试,对亲蟹采取土池水散养越冬,饲养5个多月,成活率可达70%;亲蟹 Crab is a kind of precious aquatic product in our country, but its resource is indifferent and can not adapt to the development of crab farming. Provincial Institute of Freshwater Fisheries in 1977 made crab artificial reproduction of a small test on the basis of success, since 1978, assumed crab artificial reproduction of the pilot, the crabs to take earth pool water free-winter, feeding more than 5 months, survival Rate up to 70%; crab