1. Select ponds, rice fields, and large and medium water areas that are close to water sources, have plenty of water, are convenient for drainage and irrigation, and have fresh water and no pollution.
2. The crab pond requires 1-3 mu, the water depth is 0.8-1.2 meters, and the slope ratio is 1:3. There should be a crab trough and water plants in the pool, and be equipped with oxygen and anti-escape facilities; - 4 acres is appropriate, Tanggu slope ratio 1:2-3, anti-escape facilities can be used asbestos plate, glass, plastic film, walls more than 0.6 meters high, water depth of 2-2.5 meters; low-lying rice fields cultivate crab pool area of ​​more than 100 acres Dig wide trenches around the pool, dig trenches in the middle, 1 meter wide, and 0.6 meter deep. The surface of crabs covers 15-20% of the total area of ​​paddy fields. The medium and large waters should be rich in aquatic plants, open water, slow water flow, and water depth. 1-1.5 meters, waters with low water levels. Before the stocking, disinfection and seed disinfection of the clear pond should be strictly performed. The method is the same as that of general pond fish farming. The stocked crabs and buttoned crabs require pure germplasm, robust physique, quick agility, complete appendages, no knuckles, and prohibition of release. Precocious decapitated crab; feed is mainly planted with plants and vegetable feed, supplemented by high-quality pelleted feed, and artificial compound feed must meet pollution-free quality standards. Feeding insist on "four look", usually observed feeding activities, found that the excess food should be adjusted feed amount, when the clam shell should reduce the amount of feed, in order to reduce feed waste and pollution of water quality, management pay attention to watch the pond and escape Inspection and repair of facilities.
Non-pollution breeding technology of crab
The non-polluted aquaculture technology of crabs is a new type of technology popularized during crab breeding, crab cultivation, crab cultivation of one-year-old crabs, and feeding of adult crabs.