一般情况下,河蟹是在池塘中进行养殖,需要防逃设施,投放人工饵料,成本较高。利用河道资源进行河蟹人工放流养殖是根据河蟹在排灌河沟中,幼蟹顶流而上,成蟹顺水而下,紧贴地爬行,一般不浮在水中流动等河蟹特有的生活规律,同时结合河道的天然饵料资源,不需要投放人工饵料,是投资少,见效快的致富项目。 1、河道选择 Under normal circumstances, crabs are cultured in the pond, anti-flee facilities needed to put artificial bait, higher cost. The use of river resources for crab artificial drainage culture is based on crabs in the irrigation and drainage ditches, young crabs top flow, crabs along the water, closely crawling, generally do not float in the water flow and other crabs unique to the law of life, combined with the river Of the natural food resources, do not need to put artificial food, is less investment, quick get rich project. 1, river choice