Fishery fry screening and breeding pond and breeding method

Abstract

The invention belongs to the field of fry and fingerling breeding, and relates to a fishery fry screening and breeding pond and a breeding method. The fishery fry screening and breeding pond comprises a shell, wherein an electromagnetic sliding groove is fixedly formed in the annular wall of the lower side of the shell, two electromagnetic sliding blocks which are in bilateral symmetry are slidably arranged in the electromagnetic sliding groove, cultivation cavities are fixedly arranged on the left electromagnetic sliding block and the right electromagnetic sliding block, and a separation cavity is arranged between each cultivation cavity and the shell. The fishery fry screening and breeding pond is suitable for fish fry breeding, in order to improve the activity of fish fry after fish fry breeding, vortexes are generated in the fish pond to push water flow, it is guaranteed that fish keeps moving in the fish pond, meanwhile, the fish pond is continuously screened, dead fish is screened, the water quality is prevented from being affected, fish manure in the fish pond is cleaned away, when water needs to be changed, the fish fry are separated from a water outlet, and the negative-pressure suction force does not influence the fry.

Description

technical field [0001] The invention belongs to the field of fish fry and fish fingerling reproduction, and in particular relates to a fry screening and cultivation pond for fishery and a cultivation method. Background technique [0002] As we all know, after the fry hatch, they need to be cultivated and grow to a certain size before they can be stocked on the water surface. In order to improve breeding efficiency, artificial cultivation is mostly adopted at present, not only to maintain water quality, but also to maintain water temperature. However, the biggest problem with indoor cultivation is that during the cultivation process, the pond waste and bait of the fry will pollute the water quality and produce a large amount of ammonia nitrogen. If it is not treated in time, it will lead to the death of the fry or even the explosion of the tank. The survival rate of the fry is low and the water quality requirements are higher High, batch cultivation of fry, and the death of ...

AI Technical Summary

Problems solved by technology

However, the biggest problem with indoor cultivation is that during the cultivation process, the pond waste and bait of the fry will pollute the water quality and produce a large amount of ammonia nitrogen. If it is not treated in time, it will lead to the death of the fry or even the explosion of the tank. The survival rate of the fry is low and the water quality requirements are higher High, batch cultivation of fry, and the death of fry will also affect the water quality. During the cultivation process, the fry will not move for a long time, which will also affect their activity. Timely salvage dead fish to avoid continuing to affect the water quality. At the same time, when changing the water in the cultivation pond, it is necessary to protect the fragile fry due to the avoidance of pumping suction.

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