Method for breeding crayfish in river channel

Abstract

The invention discloses a method for breeding crayfishes in a river channel. The method comprises the steps that one, a river channel which can drain water in a flood and preserving water in a droughtwith the water depth difference within 1 meter, the water depth of 1-1.5 meters and the water flow rate of 0.8-1.2 m / s is selected, dams on the two sides of the river channel is firm, and filth discharging positions of enterprises in working conditions are avoided; two, intercepting nets are arranged on broad water surface of the river channel, polyethylene net cloth is chosen as a net sheet, theheight of the net exceeds the highest water level of each year by 0.6-0.8 meter, and the mesh is 0.7 cm; three, proper crayfish species is put according to the fertility of water quality, and the 800-1500 ind of crayfishes with the sizes of 2-3 cm are put in each mu; four, a fine feed feeding site is arranged at a shoal, and the crayfishes are fed with granulated feed; five, intercepting net inspection is conducted everyday, and inspection is conducted day and night during a flood period. According to the method, the crayfishes are bred in the river channel, the operation is convenient, initial investment is low, the rate of return is high, a suitable growing environment is provided for the crayfishes,the yield is high, and the economic benefits are good.

Description

technical field [0001] The invention relates to a method for cultivating river crayfish, which is applied in the technical field of crayfish cultivation. Background technique [0002] Crayfish is a freshwater economical shrimp. The protein content in its body is very high, and the meat is soft and easy to digest. It is an excellent food for people who are weak and need to take care of themselves after illness; the shrimp meat is also rich in magnesium, zinc and iodine , selenium, etc. Magnesium has an important regulatory effect on heart activity and can protect the cardiovascular system. It can reduce the cholesterol content in the blood, prevent arteriosclerosis, and at the same time expand the coronary arteries, which is beneficial to the prevention of high blood pressure and myocardial infarction. It has become an important economic breeding species in China. At present, most of the crayfish farming models in the market are single breeding in ponds or lotus root fields. ...

AI Technical Summary

Problems solved by technology

[0002] Crayfish is a freshwater economical shrimp. The protein content in its body is very high, and the meat is soft and easy to digest. It is an excellent food for people who are weak and need to take care of themselves after illness; the shrimp meat is also rich in magnesium, zinc and iodine , selenium, etc. Magnesium has an important regulatory effect on heart activity and can protect the cardiovascular system. It can reduce the cholesterol content in the blood, prevent arteriosclerosis, and at the same time expand the coronary arteries, which is beneficial to the prevention of high blood pressure and myocardial infarction. It has become an important economic breeding species in China. At present, most of the crayfish farming models in the market are single breeding in ponds or lotus root fields. The initial investment is relatively large. Shrimp cultivation trenches need to be dug in ponds or lotus root fields, and basal fertilizers and river channels should be applied. The contact area with the land is relatively large, the inflow of organic matter is also large, and the water quality is relatively fertile, which can be used to increase the production of lobster farming. However, there are few breeding models for raising crayfish through river channels in the market, and there is no systematic farming method.