2. Add water to the bathtub to keep the hairy crabs alive. If you buy too many hairy crabs, you can feed them in the bathtub. The bathtub is smooth around, which can ensure that hairy crabs will not escape from prison. Put a proper amount of water in the bathtub (the difference is only 1~3cm thick) to ensure the humidity of hairy crabs, and then put some small fish, loach and live shrimp as their food, which can keep them for 5~ 10 days.
Extended data:
Every100g of crab edible part contains protein17.5g, fat 2.8g, phosphorus182mg, calcium126mg, iron 2.8mg and abundant vitamin A and vitamin B 1. ?
The composition of Scylla serrata is rich in protein, among which the content of female gonad is as high as 30.98%, ranking first in fresh protein. Protein of Scylla serrata has a complete range of amino acids, and the score of essential amino acids is 84.23 ~ 93.58.
Crab shell can be used to extract chitin, an industrial raw material, and also can be used to extract glucose. Some crabs can be used as Chinese medicine. Crab larvae or adults can be used as bait and feed. In addition, some crabs will destroy farmland water conservancy or serve as intermediate hosts of human parasites.
Baidu encyclopedia-crab