How do crabs survive the winter?

Crab is a common seafood in life, with many varieties and high nutritional value, so it is very popular with people. At present, most areas are raising crabs. How can the crabs survive the winter?

How do crabs survive the winter?

Before the crabs pass the winter, clean up the mud in the pond in time and do a good job of disinfection. The water temperature should be controlled above 10 degrees as far as possible, and if it is lower than 10 degrees, the amount of feeding will be reduced by 3-5%. Make inspections 1-2 times a day, and take escape prevention measures in advance.

Second, how can crabs not die?

1. Breeding environment

Raising crabs at home can choose a pool that is more spacious and has a certain depth to prevent crabs from escaping. It can be a cement pond or a larger plastic basin.

Spread a layer of about 10 centimeters of silt and 5 centimeters of river sand in the crab pond. You can go to the riverside or lake to get some sand or buy it online.

If you plan to keep crabs at home for a long time, you can also plant some aquatic plants that are easy to survive in the pond, such as verticillium verticillata, Sophora flavescens, Elodea, which can not only purify the water quality, but also can be used as bait for crabs to eat.

Specific planting of several aquatic plants depends on the size of the breeding site and the number of crabs.

2. Crab specification

It is recommended that the specifications of crabs raised in the same pool should not be too different, so as not to affect the survival rate of crabs.

In addition, it is necessary to ensure that the raised crabs are disease-free and injury-free.

3. Feeding and management

(1) bait

In the process of feeding, you can feed red worms, shrimp, snail, clam meat and other animal bait, supplemented with aquatic plants, pumpkins, potatoes and other plant bait, feeding once in the morning and evening, the crabs will grow better.

(2) changing water

On the issue of changing water, it is suggested that the water should be changed every 3 days. After changing the water, it can be poured with appropriate amount of quicklime to sterilize and disinfect in time.