Grading culture system for crayfish fries

Abstract

The invention discloses a grading culture system for crayfish fries. The grading culture system comprises a culture pond body, wherein a drainage opening is formed in the bottom end of the culture pond body, a drainage pipe communicates with the drainage opening, a grading assembly communicates with the tail end of the drainage pipe and comprises a frame body and a plurality of net-shaped collecting baskets arranged in the frame body at intervals up and down, meshes of the plurality of collecting baskets are sequentially reduced from top to bottom, and a cover body capable of being opened and closed is arranged at the drainage opening; the cover body is of a net-shaped structure, and a valve is arranged at the end of the drainage pipe; the culture pond body is of a cylindrical structure, and the bottom end of the culture pond body is of a structure in a shape of a circular truncated cone; and an oxygen inlet pipe is arranged in the culture pond body, the tail end of the oxygen inlet pipe communicates with an annular oxygen aeration pipe, and the aeration pipe is arranged on the lower portion of the side wall of the culture pond body. By arranging the drainage pipe and the collecting nets which communicate with the tail end of the drainage pipe and have different meshes, grading of the crayfish fries is achieved, and then accurate culture of the crayfish fries is achieved.

Description

technical field [0001] The invention relates to the technical field of breeding equipment. More specifically, the present invention relates to a kind of crayfish fingerling cultivation system. Background technique [0002] Crayfish farming in paddy fields has developed rapidly in recent years. Because crayfish has low requirements on the water environment for farming, the market demand has increased year by year, the market price is high, and the farming benefits are considerable. Farmers in non-crayfish-mainly raising provinces have also set off a boom in crayfish farming. . Due to the lack of seedlings in these areas, it is impossible to achieve self-sufficiency in crayfish seedlings in this province. It is necessary to purchase seedlings from other provinces. Long-distance transportation is lossy, high cost, and the quality of seedlings cannot be guaranteed, which restricts the scale of crayfish farming. At present, the existing crayfish seedlings are generally cultured...

AI Technical Summary

Problems solved by technology

Due to the lack of seedlings in these areas, the province cannot achieve self-sufficiency of crayfish seedlings, and it is necessary to purchase seedlings from other provinces. The long-distance transportation loss is large, the cost is high, and the quality of seedlings cannot be guaranteed, which restricts the scale of crayfish farming.

At present, the existing crayfish seedlings are generally cultured in breeding ponds, but the existing breeding ponds are not convenient for grading crayfish seedlings according to individual size, and it is not convenient for precise cultivation of crayfish seedlings

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