Net cage device for odontobutis obscura breeding

Abstract

The invention discloses a net cage device for odontobutis obscura breeding. The net cage device comprises a net cage, a conical body, sinkers and ropes, wherein the net cage is formed by sewing bottom net sheets and peripheral net sheets; a plurality of round holes are formed in the net sheets; the edges of the round holes and the fan-shaped net sheets are sewn to form the embedded conical body with the closed top; the sinkers are sewn at the periphery of the bottom of the net cage; the net cage extends in the water body; the ropes penetrate the periphery of the top of the net cage; and the tails of the ropes are used for fixing the net cage. The net cage device is firm and simple in structure, long in service life, suitable for multiple specifications and wide in application range; daily management in the breeding process is facilitated, quantitative fishing at any time is facilitated, the fishing intensity and the fish body fishing stress are reduced, and the fishing efficiency is improved; and meanwhile, the requirements of juvenile odontobutis obscura and adult odontobutis obscura on hidden habitats are met, the space competition of odontobutis obscura is reduced, the food intake level of the odontobutis obscura on bait organisms is increased, the energy consumption is reduced, and the growth is promoted.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and relates to the cultivation technology of the channa, in particular to a net cage device for the cultivation of the channa. Background technique [0002] Channa is a benthic carnivorous fish. In natural waters and aquaculture waters, Channa often stays in hidden places such as aquatic plants, stones, and crevices to ambush and prey on prey organisms, and has a strong demand for sheltered habitats. At present, most of the snakeheads are polyculture species, which are not easy to catch at any time, and the bottom of the breeding water body is often uneven, and many kinds of submerged plants are often planted, which is not convenient for pulling nets and the fishing efficiency is low. Channa nama can be successfully cultured in cage culture, but the predation rate is low and the growth is slow. Contents of the invention [0003] At present, the main problems in the prior art include: [0...

AI Technical Summary

Problems solved by technology

At present, most of the snakeheads are polyculture species, which are not easy to catch at any time, and the bottom of the breeding water body is often uneven, and many kinds of submerged plants are often planted, which is not convenient for pulling nets, and the fishing efficiency is low

Sand pond snakehead can be successfully cultured in cage culture, but the predation rate is low and the growth is slow

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