How to propagate crayfish seedlings

Crayfish are also called procrayfish, red crayfish and freshwater crayfish. It is a freshwater economical shrimp and is very popular because of its delicious meat. Today I will introduce to you how to reproduce crayfish seedlings.

1. Crayfish breeding technique

From April to May, when the water temperature reached more than 20 ℃, the parent shrimp began to mate. The fertilized eggs hatched into young shrimps in the belly of female shrimps. The incubation time is 40-70 days. When the water temperature is high, it can be hatched in about 30 days. When it is found that there are a large number of young shrimp in the breeding pond, the seedlings should be collected in time and put into the shrimp pond for intensive cultivation.

How to choose crayfish

1. Crayfish washed with shrimp powder often look very clean and glossy. However, the corroded crayfish forceps are easy to fall off and should be eaten carefully.

two。 To see whether the crayfish lives in clear water, look at the back, whether it is red and clean, and then look at its abdominal fluff and the hairs on its claws. If it is white and neat, it is basically raised by clean water.

3. After all, crayfish are aquatic animals that eat dead humic animals, and bacteria and toxins will only accumulate in the body more and more, so try to buy newly grown crayfish.

4. Before eating crayfish, look at the crayfish body: if the tail is curled up, it is alive before entering the pot. If the tail is straight, it means he was dead before he entered the pot.

5. For self-cooking crayfish, it is recommended to soak the crayfish in clean water for 2 to 3 hours, then rinse clean and cook at high temperature before eating.

Crayfish has become an important economically farmed species in China in recent years. In the process of commercial breeding, we should strictly prevent escape, especially into the inaccessible original ecological water body. It causes destructive harm to the ecological competitive advantage of local species.