How to raise crabs How to raise crabs

1. Breeding environment. In the process of breeding crabs, a fish tank or glass tank should be prepared as a utensil, and fine sand should be spread on the bottom to provide a suitable growth environment for the crabs, and river water and lake water should be added to the fish tank.

2. Feeding method. Crab breeding in the early stage of no need to feed, at this time the crab has not adapted to the environment, will not eat, wait for a period of time, you can provide crabs with fish and shrimp, egg yolk, red worm and other food, and after each feeding, let the crab eat within half an hour, and remove food residues in time.

3. Clean regularly. When breeding crabs, it is necessary to clean them regularly, use a toothbrush dipped in shower gel or soap, and scrub their back armor to avoid breeding bacteria, resulting in soft and damaged crab shells, and every time the water is changed, the water in the fish tank should be discharged, and then after cleaning the inside, the crabs are re-put into farming.

1. You can put the crabs in a deep basin, if there are too many crabs, a basin can not be placed, they can be scattered and raised, in order to prevent the crabs from escaping, it is best to cover the basin with a layer of gauze.

2. Put water in the basin, and the depth of the water should not be lower than the crab, so that its head can be exposed when it stands up, otherwise it will not be able to breathe in oxygen, but the crab's shell should be submerged.

3. If you are worried that the crabs will escape if you use pots, you can use plastic buckets to raise, in the same way as pots, don't put too much water in it, and choose a bucket with a smooth inner wall.

4. Put the crab bucket in a ventilated and cool place, the temperature is about 15 degrees Celsius, if you want to eat it after a day or two, then you don't need to feed it, just use water.

5. If you want to keep it for a longer time and don't let the crab lose weight, you can feed the crab some small shrimp or small fish or something, and add some weeds.

6. If the crab you want to raise is a river crab, you can only raise it with clean water, if it is a sea crab, you also need to put some salt in the water to make the water salty and closer to its growth environment.

1. When breeding hairy crabs, we need to buy a batch of small hairy crabs for breeding, and generally choose hairy crabs with better quality, especially when we breed hairy crabs for the first time, the mortality rate will be much lower, which we need to understand.

2. When breeding hairy crabs, it is necessary to feed, otherwise it is basically difficult for hairy crabs to grow up, generally, we can buy some small fry to give hairy crabs to eat, they prefer to eat small fish, small fish are best to be alive, otherwise buy dead fish, which is easy to lead to the death of hairy crabs.

3. When breeding hairy crabs, especially when there is more rain, we need to drain water, and generally we must make a good guardrail in the drainage, otherwise the hairy crabs are easy to run away, and if they do not drain, it is easy to cause the water to be turbid and lead to the death of hairy crabs, which we need to know.

4. When breeding hairy crabs, we also need to put some aquatic plants in the water appropriately, which can improve the environment of the water area and make the water not so turbid, which is very important, otherwise it is easy to cause the hairy crabs to die, which is also very important.

5. When we breed hairy crabs, we should salvage them in the appropriate season, generally from September to November, the crab roe of hairy crabs at this time is the most, generally at this time when many people eat hairy crabs, we are also selling them, and then we put small hairy crabs to continue breeding.

1. Pond conditions. The water depth of the pond is kept at about meters all year round, the water depth is different everywhere, the shallowest place is 10cm, the ants can make several mounds slightly higher than the water surface in the pond, that is, the crab island is boring, the island can transplant aquatic plants, the pond is not too steep, the slope ratio is generally below, and artificial caves can also be built. Generally, half a month before the seedlings are put into the pond with quicklime to disinfect, and the dosage is 75 kg per mu.

2. Transplant aquatic plants. The main types of aquatic plants are duckweed, Manjianghong, water hyacinth, water floating lotus, black algae, goldfish algae, bitter grass, water peanut, etc., and attention should be paid to disinfection and damage prevention during transplantation. Escape prevention facilities are mostly made of plastic film, but also cement boards, depending on the situation.

3. Seedling density. The seedlings purchased from other places can not be directly put into the pool, should be soaked in water for 2-3 minutes, taken out and placed for 10 minutes, so repeated 2-3 times, after the young crabs gradually absorb enough water and adapt to the water temperature, put into the pool, can improve the survival rate. The density can be controlled within 1500 mu, and the specification is 120-150 kg.

If the conditions are poor or shrimp farming is the mainstay, the amount of seedlings can be appropriately reduced.

4. Feeding management. The feeding method of crabs is like pond fish farming, so as to achieve "four looks and four determinations", that is, to see the season, the weather, the water quality, and the activities of the crabs, timing, fixed, qualitative, and quantitative.