1. The pond must be well drained and breathable. In order to make the crab thrive, first of all, the conditions of the pond must meet the growth conditions. In the selection of good aeration, easy drainage, water quality is not polluted clay, soil sand and other soils at the same time, but also must pay attention to the depth of the pond water and the slope of the pond. Please note that the depth of the pond must be maintained at about 0.6 to 1.5 m. If the pond is not sloping too fast, it will not be conducive to the night time water release activities of the crabs. If the condition is available, you can choose to make holes artificially.

2, planting good aquatic plants, aquatic plants are related to the production of river crabs, so it is necessary to plant aquatic plants well. There are many kinds of aquatic plants such as floating weeds, bromeliads, blackfish algae, potatoes and so on.

3. Be careful not to let the crabs escape. Crabs tend to escape when they are cultured in the pond, so it is necessary to take measures to prevent them from escaping. Depending on the culture condition, you can use plastic film, cement board and so on.

4, the pond should be sterilized and cleaned, the pond is cleaned and sterilized to keep the crabs from growing better and less sick. Sterilize with quicklime before putting in seedlings can improve the structure of microorganisms on the bottom of the pond and sterilize harmful organisms.

5, selecting seedlings to put seedlings, crab crab seedlings related to the quality of the crab, so be sure to choose healthy, lively, neat crab seedlings. Pay attention to the stocking density and temperature when putting seedlings. You can't just put the newly bought saplings into the pool like that. Soak it a few times to familiarize yourself with it before putting it into the pool. The survival rate is higher.

6, feeding, when breeding crabs in the pool, mainly fed with artificial feed, so choosing the appropriate feed is the focus. Generally you can choose animal small mixed fish. Plants of aquatic plants, bitter herbs, etc.; Commodities are cereals, potatoes, etc..

7, crab black gill disease, when the crab suffers from black gill, if it is light, the part of the gill will become dark gray and black, if it is heavy, the whole gill will become black, unable to breathe, and the reaction will become slow. Generally, it is mostly seen in the late growth period of the crab due to the difference in the water environment.