Large-scale grouper breeding device employing large outdoor fish pond

Abstract

The invention relates to a breeding device, in particular to a large-scale grouper breeding device employing a large outdoor fish pond. The invention aims to solve the problems that during the current process from the growth stage of fertilized eggs of groupers to the initial feeding stage, a great amount of larval fish dies, the facility investment at the earlier stage of current artificial breeding is higher, more links are involved, the operation is complicated, the hatching water and farming water cannot circulate mutually, the nurture environment is changed, and the larval fish cannot be placed in the original incubator facility for a long time, so that the survival rate of fry is extremely low, and even the mass death of a great amount of fry is caused. A rainproof awning is bound with a supporting framework, four sides of an opening of a hatching bag are bound at the lower parts of four parallel sides of the supporting framework, a parallel opening is formed in any side wall by shearing and sewed with a group of upper and lower zippers, the parallel opening is sealed through a filter screen sewed on the inner side of the parallel opening, a filtering window comprises a group of zippers and a filter screen, and an air pump is communicated with an inflation pipe and a plurality of air connectors. The large-scale grouper breeding device is used for large-scale grouper breeding.

Description

technical field [0001] The invention relates to the fish hatching and breeding industry, in particular to large-scale breeding of fry in open-air large fish ponds. Background technique [0002] The fertilized eggs of grouper fish are transparent floating eggs with small egg diameters, while the existing large-scale artificial breeding of grouper fish fry in open-air large fish ponds is under the condition of all controllable seawater water bodies. The main principle is to use fertilization The buoyancy of the eggs divides the fertilized eggs into multiple small water bodies and passively waits for the division of the fertilized egg cells until the larvae open, and then scoops them out and puts them in large fish ponds (1900-6600 cubic meters) to achieve large-scale hatching; the main incubators such as Put the fertilized eggs of the grouper into multiple cement ponds, and scoop them out into the fish pond after the larvae open; put the fertilized eggs of the grouper into mul...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that a large number of larvae die during the growth of the fertilized eggs of the existing grouper to the process of opening the mouth to eat, the investment in the existing artificial breeding early stage facilities is large, the implementation links are many and cumbersome to operate, and the larvae of the grouper after opening the mouth In case of heavy rain and strong winds, they cannot survive in large fish ponds, and the water quality of the hatching water body is inconsistent with the water quality of the fish ponds to be cultured, resulting in a stress response that causes a large number of larvae to die, and the breeding environment changes. After the opening, it cannot be placed in the original hatching facility for a long time, resulting in a very low survival rate. A large-scale breeding device for large-scale grouper fish ponds in the open air is proposed.

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