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近年来，池塘养殖常规鱼的产量虽不断提高，而养殖效益却相对降低。为了转变这种状况，必须充分挖掘水体潜力，降低养殖成本，在池塘适当套放一些特种水产养殖品种，以提高产品质量和池塘的养殖效益。１．鱼蟹混养在２～３月份，每６６７平方米（１亩）养鱼塘水面套放２００只
In recent years, although the production of conventional fish in ponds has been continuously raised, the breeding benefits have been relatively reduced. In order to change this situation, the potential of water bodies must be fully tapped to reduce the cost of breeding. Some special aquaculture species should be properly placed in ponds to improve product quality and pond culture benefits. 1. Mixed fish and crabs in February and March, every 667 square meters (1 acre) of fish ponds set 200