80年代中期,池塘养蟹规模较大,后因养殖技术不完善,养成的商品蟹规格、质量、产量、效益较低,养殖面积有所减少。随着农村商品生产的发展,市场上河蟹紧缺,蟹价提高和养殖技术的进步,90年代初,许多单位和群众利用鱼塘或挖塘进行河蟹养殖,促进了河蟹养殖业的发展。为普及池塘养殖技术,现将有关知识简介于下。 In the mid-1980s, the pond crabs larger scale, because of imperfect breeding technology, develop a commodity crab specifications, quality, yield, benefit is low, farming area decreased. With the development of rural commodity production, the shortage of crab on the market, the improvement of crab price and the improvement of culture technology, many units and masses used the fish ponds or dig ponds to carry out crab farming in the early 1990s and promoted the development of crab farming. In order to popularize the pond farming technology, the relevant knowledge is introduced below.