How to achieve high yield in crab farming?

With the rise of hairy crab farming, more and more farmers are beginning to get involved in this field. However, scientific management methods are essential to successfully breeding hairy crabs . Today, let’s discuss how to achieve high yields in crab farming?

1. Preparation before breeding

Hairy crabs are aquatic animals, so the choice of breeding location is very critical. Ideal breeding sites include rice fields, ponds or lakes with sufficient and clean water. Anti-escape measures need to be taken, such as using cement fencing, removing excess mud and sand, and thoroughly cleaning with quicklime and soaking for a day before injecting clean water. After 3-5 days, remove the crabs from the dry environment, inject water, and put in their favorite aquatic plants , such as water spinach, bitter grass , etc.

2. Selection of crab seedlings

When choosing crab seedlings, you should pick those with uniform color, moderate size, healthy limbs, no disease, and high vitality. Such crab seedlings grow fast, have strong reproductive ability and a higher survival rate.

3. Scientific stocking method

The crab seedlings should be disinfected before stocking to prevent water pollution and affect the health of other crab seedlings. The water depth for the first stocking should be controlled at 1.5 to 2 meters and the water temperature should be maintained at 20 to 25 degrees Celsius. After a month, the crab seedlings will gradually adapt to the environment. Under good growing conditions, about 300 hairy crabs can be farmed in a year to ensure they have enough space to move around and food.

4. Breeding management

The growing season of hairy crabs is mainly in summer. At this time, the nutritional supply should be increased to promote rapid growth, mainly based on plant feed , such as wheat, corn, pumpkin, etc. Autumn is the fattening period for hairy crabs. Animal feed such as snails, small fish, and river clams should be added to improve meat quality and economic benefits.

5. Daily management

Check the water quality regularly as it is crucial to the growth of hairy crabs. Change the water every half a month in spring and autumn, once a week in summer, and once a month in winter. At the same time, check anti-escape facilities to prevent escape accidents. Disinfect the breeding grounds regularly to maintain a clean environment.

6. Pest and disease control

During the breeding process, hairy crabs may encounter a variety of diseases, such as gill rot, edema, molting failure, ciliate disease, polysaccharidosis, parasitic disease and water rats. It can be controlled by using drugs such as quicklime, erythromycin, chitin, formalin, copper sulfate and rat cages.

The above is an introduction to the key points of crab farming . Through the above methods, the success rate of crab farming can be effectively improved, thereby obtaining better economic benefits.