Tangkou 1
Before crayfish culture, the first thing to prepare is to choose a pond mouth, and we must choose an area without pollution sources, and also ensure the convenience of water storage and drainage.
2. Disinfect fertilizer and water
After selecting the pond mouth for crayfish culture, the pond mouth should be disinfected and cleaned first. Only by thorough disinfection can the bacteria harmful to crayfish be eliminated. Before putting crayfish into the pond, some aquatic plants and plankton should be planted.
3. Prevent escape
Crayfish can crawl around like crabs, especially the two pliers in front of crayfish are more convenient to escape. Therefore, before breeding, we must do a good job of preventing escape. The pond will be surrounded by nets and the width of the pond will be widened, because crayfish will not only climb high and escape, but also have the habit of making holes.
Step 4 choose shrimp seedlings
After all the above work is completed, shrimp seedlings are selected and released. Generally, crayfish varieties with high survival rate and strong reproductive ability should be selected, and the density of crayfish should not be too large, otherwise the water quality will become worse.
5, pond water temperature
The growth temperature of crayfish is above 10℃, and the optimum water temperature is 16-33℃ and 20-32℃. However, when the temperature is lower than 20℃ or higher than 32℃, the growth rate of crayfish will decrease, and adult shrimps have certain tolerance to high and low temperatures. Crawfish will still crawl out of the cave for food all winter, but when the water temperature is lower than 10℃, they will eat.