Finless eel net cage ecological breeding method

A net cage and eel technology, applied in the field of eel breeding industry, can solve the problems of low recapture rate, high cost, and difficult cultivation of eel seedlings, and achieve the effect of solving difficult fishing, low production cost, and fast growth speed
CN103404470AInactive Publication Date: 2013-11-27WANGJIANG ZHIYU SPECIAL AQUATIC PROD DEV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WANGJIANG ZHIYU SPECIAL AQUATIC PROD DEV
Publication Date
2013-11-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a finless eel net cage ecological breeding method. The finless eel net cage ecological breeding method comprises the steps of adopting a net cage low-density sparse breeding aquaculture technology to create a finless eel symbiotic ecological environment, selecting bred high-grade parental finless eels, performing intensive cultivation, enabling the finless eels to naturally perform spawning, fertilization, hatch and birth in a net cage, then taking away the parental finless eels, artificially feeding young finless eels and finally breeding finless eels. The method utilizes the net cage to breed finless eel fry, operation is easy, bred finless eel fry is easy to catch, the working amount is small, the production cost is low, the water quality is easy to manage, the problem that the finless eel fry is difficult to catch is solved, and industrial large-scale production of the finless eel fry is facilitated. In addition, the method does not adopt artificial spawning, meets the requirement for gonad development through advanced breeding of the parental finless eels and achieves natural spawning and fertilization, the bred fry is good in constitution and quick in growing speed, and the survival rate of the finless eel fry is improved.
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Description

technical field

[0001] The invention relates to the technical field of rice field eel breeding industry, in particular to a method for ecological seedling cultivation of rice field eels in net cages. Background technique

[0002] In recent years, wild natural eel seedlings are decreasing year by year, wild eel seedling resources are scarce, and the rice field eel breeding industry is developing rapidly. Natural seedlings alone can no longer meet the needs of the eel farming industry. Therefore, artificial propagation is the solution to the shortage of rice field eel breeding seed The inevitable way, artificial propagation of eel seedlings is imperative.

[0003] However, due to the characteristics of sex reversal, low fecundity, batch spawning, long incubation time, and irregular film production, the artificial reproduction of rice field eel is difficult, and the technology of large-scale reproduction has not yet been broken through.

[0004] The eel seedlings cultivated by...

Claims

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