A brief Analysis of the five questions about raising Crayfish
1. What conditions do you need?
Answer: crayfish has strong adaptability to the environment and can grow in lakes, ponds, ditches, rice fields and other water bodies. The water source should be adequate and the water depth should be about 1 meter.
two。 Can crayfish be raised in a goldfish tank?
A: yes, but it can not form large-scale farming, nor can it produce economic benefits.
3. How is the income from raising crayfish?
Answer: generally, 30 jin of shrimp per mu can breed 200 kg 300 jin of crayfish, and the net profit can reach about 1000 yuan. Five or six years later, even without planting shrimp, the yield per mu can reach 200 jin.
4. When do you start to breed shrimp and where do you buy it?
A: shrimp are generally released and planted in September every year, and are caught and listed from May to June of the following year. It is best to buy shrimp nearby and choose crayfish with large heads and hard carapace. Shrimp is in short supply this year, and farmers who are interested in raising crayfish can buy shrimp in captivity in advance and release them in September.
5. Will the massive promotion of crayfish culture do harm to ecology and flood control?
A: crayfish are not very destructive. First of all, it needs to grow and reproduce in a specific environment. At present, there are nearly 400000 mu of low-lying land suitable for crayfish farming in our city. In addition, in aquatic products, crayfish is not the strongest reproductive capacity, a female shrimp can reproduce 200 shrimps. At present, crayfish exports and domestic demand are still in short supply. Even if no one eats it, crayfish are easy to catch and do not pose much threat. In addition, although crayfish like to drill holes, experiments have found that the depth of the hole is only 20 to 30 centimeters, and the highest one is only more than one meter deep, and it is carried out along an oblique line toward the groundwater, which will not pose a threat to flood control.
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