What is the difference between Yangcheng Lake hairy crabs and ordinary hairy crabs? How long can hairy crabs live in water?

Hairy crabs are delicious, so everyone likes to eat them. Mid-Autumn Festival is the time when hairy crabs are delicious. Giving Yangcheng Lake hairy crabs as gifts during the Mid-Autumn Festival is a good choice. Now Yangcheng Lake hairy crabs are still a relatively high-end gift. In addition, the meaning is also very good. So what is the difference between Yangcheng Lake hairy crabs and ordinary hairy crabs? You might as well open the Encyclopedia Knowledge Network to take a look.

Contents of this article

1. The difference between Yangcheng Lake hairy crabs and ordinary hairy crabs

2. How long can hairy crabs survive in water?

3. Why do we give hairy crabs as gifts during the Mid-Autumn Festival?

The difference between Yangcheng Lake hairy crabs and ordinary hairy crabs

Yangcheng Lake crabs have always been known as the best crabs. This is related to the special ecological environment of Yangcheng Lake. The water area is hundreds of miles in radius, with rippling blue waves, clear water like a mirror, shallow water, hard bottom, lush aquatic plants, wide extension, and suitable climate. It is the most ideal crystal palace for crabs to settle and grow Yangcheng Lake hairy crabs. Therefore, the shape and meat quality of Yangcheng Lake crabs are very different from other crabs.

There are four major characteristics of Yangcheng Lake hairy crabs: first, the green back, the crab shell is blue-gray, smooth and shiny; second, the white belly, the navel and shell are crystal white, without black spots; third, the yellow hair, the hair of the crab legs is long and yellow, and each hair is upright; fourth, the golden claws, the crab claws are golden, strong and powerful, and can stand upright on the glass with eight legs, two claws in the air, two claws in the air, and the navel back is raised, which is majestic. The meat is fat, tender and delicious. After eating it, other delicacies will be tasteless. Just a few kilometers away from Yangcheng Lake, Chicheng Lake also has a large output of lake crabs, but due to the influence of the sea tide, the belly is not white, the hair is slightly black, and the meat is far less delicious than that of Yangcheng Lake crabs. The lake crabs in the same area cannot be compared, and the crabs in other areas are even more inferior. Therefore, Yangcheng Lake crabs have long enjoyed a high reputation overseas and are called "Chinese golden velvet crabs".

How long can hairy crabs live in water?

Hairy crabs cannot live in water with too low oxygen content. If hairy crabs are kept in stagnant, unoxygenated water, the oxygen will slowly be depleted. After about 4 hours, the hairy crabs will die due to low oxygen content. If oxygen is added, the crabs can be preserved for a longer time.

How to keep hairy crabs in water for a long time

1. Place the hairy crabs in a larger container, add about half a bucket of water, and then insert the aerator into the water to maintain oxygen in the water. The hairy crabs can be preserved for more than 3 days. If small fish, shrimps, egg whites and other foods are added, the breeding time can be longer.

2. You can also put the hairy crabs in a deeper basin and add some water, just enough to cover most of the crab's body. This way, the crabs can break the water surface to breathe and are less likely to suffer from hypoxia.

Other ways to preserve hairy crabs

You can also put the tied hairy crabs in the refrigerator's cold storage layer and cover them with a wet towel. This will not only maintain the crab's moisture content, but also reduce the crab's activity due to the low temperature in the refrigerator, thus avoiding excessive crab activity, excessive consumption, and meat loss during storage.

What are the consequences of storing hairy crabs for too long?

1. If the hairy crabs are not stored in good conditions and remain in a dying state for a long time, a large amount of substances such as histamine and cadaverine will appear in the body, which is harmful to the body if eaten. Therefore, it is best not to store hairy crabs for a long time and eat them quickly after buying them.

2. The carbohydrate content in hairy crabs is very low, so what is consumed during the storage process is protein. Therefore, if stored for a long time, the protein in the hairy crabs will be lost in large quantities, resulting in the meat being not full.

Why do we give hairy crabs as gifts during the Mid-Autumn Festival?

The reason why hairy crabs are given as gifts during the Mid-Autumn Festival is that the hairy crabs are at their best when they have more roe and more roe.

Because hairy crabs are delicious, everyone likes to eat them, and generally few people will refuse them. Most people will refuse other gifts, so they are a good gift for the Mid-Autumn Festival. Another reason is that everyone likes to eat fresh food, and hairy crabs are fresh food that cannot be kept overnight.