CATDOLL : CATDOLL: Crab farming technology and management, what conditions are needed for farming

If you want to raise crabs, you first need to build a pond of appropriate size. The water in the pond must be clean and hygienic enough. There must also be aquatic plants in the pond, but the number of aquatic plants cannot be too many. At the same time, you need to prepare an oxygenator to supply oxygen to the crabs, and you also need to prepare an anti-escape device. When choosing crab seedlings, do not choose those with injuries or difficulty breathing.

1. Crab farming technology and management

1. Crab breeding technology

(1) First, you need to build a pond of appropriate size. The water in the pond should be clean and sanitary, and there should be enough sunlight around it. The water in the pond should not be too deep, generally 50cm deep, and the height of the pond should be above 1m.

(2) There must be water plants in the crab pond, because water plants can not only produce oxygen, but also have a certain effect on purifying water quality. The amount of water plants should be determined according to the changes in weather and climate. In summer, the amount of water plants can be more, and in other seasons, the amount of water plants should be reduced.

(3) When breeding crabs, you can prepare an aerator to provide oxygen to the crabs. If there is not enough oxygen in the water, the crabs will suffocate to death. You also need to prepare some anti-escape devices and water filling and drainage systems.

(4) You need to choose high-quality crab seedlings. Do not choose crab seedlings with injuries or difficulty breathing.

(5) Before putting crab seedlings in, you can disinfect the pond with quicklime. Generally, the amount used per mu is 70 kg. Half a month after disinfection with quicklime, crab seedlings can be put in. In addition, you can place the crab seedlings in a corner of the pond to let them adapt to the pond environment before putting them in.

(6) Generally, crab fry can be released in the spring. At the same time, they need to be fed with feed, but the amount of feed should not be too much. When the crabs are slightly larger, they can be fed with an appropriate amount of meat feed.

2. How to manage crabs

(1) When breeding crabs, it is necessary to observe the behavior of the crabs. If any crabs are found to be behaving abnormally, they need to be isolated in time.

(2) You need to change the water frequently, but not all at once. Generally, you should change about 40% of the water first. When changing the water for crabs, be careful not to allow the water temperature and water level to fluctuate greatly.

2. What conditions are required for crab farming?

1. The place for breeding crabs must be quiet, sheltered from the wind and facing the sun, and transportation must be convenient.

2. The breeding site should have sufficient water resources, good water quality and convenient irrigation and drainage. The silt at the bottom of the pond should not exceed 5cm.

3. After selecting a site, you need to go to the relevant department to apply for the corresponding breeding certificate.

4. When raising crabs, you need to find a good sales channel in advance.