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Method for raising squaliobarbus curriculus parent fishes by utilizing net cage

A technology of red-eyed trout and net cages, which is applied in the field of raising red-eyed trout broodstock in net cages, can solve the problems of low maturity rate and low adaptability of red-eyed trout, improve the maturity rate and seedling production rate, improve the survival rate, accelerate growth and mature effect

Inactive Publication Date: 2017-05-31
叶忠平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for raising broodstock of red-eyed trout by using net cages, so as to solve the problems of existing cage culture technology, low adaptability of red-eyed trout, and low maturity rate of red-eyed trout.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for raising red-eyed trout broodstock in cages, characterized in that it comprises the following steps:

[0027] S1. Breeding environment treatment: choose river waters with quiet environment, convenient transportation, sufficient water sources, and micro-flow characteristics as breeding sites, and there are no tall trees and tall crops around; the water temperature is 16°C, the pH value of the water area is 9.0, and the dissolved oxygen The amount is 4mg / L; the water level in the water area is relatively stable, the water quality transparency is >1, and the water flow is <0.2m / s.

[0028] S2. Net cage setting: the size of the net cage is 5m×5m×3m, and the mesh is 2a=1cm~3cm.

[0029] S3. Putting in fish species: put the red-eyed trout species into the net cage to start cultivation, and mix the sexes in the same box.

[0030] S4. Feed feeding: feeding floating compound feed, the protein content of which is 28%.

[0031] S5. Net cage replacement: replace the n...

Embodiment 2

[0039] A method for raising red-eyed trout broodstock in cages, characterized in that it comprises the following steps:

[0040] S1. Breeding environment treatment: choose river waters with quiet environment, convenient transportation, sufficient water sources, and micro-flow characteristics as breeding sites, and there are no tall trees and tall crops around; the water temperature is 32°C, the pH value of the water area is 7.0, and the dissolved oxygen The amount is 5mg / L; the water level in the water area is relatively stable, the water quality transparency is more than 1, and the water flow is less than 0.2m / s.

[0041] S2. Net cage setting: the size of the net cage is 5m×5m×3m, and the mesh is 2a=1cm~3cm.

[0042] S3. Putting in fish species: put the red-eyed trout species into the net cage to start cultivation, and mix the sexes in the same box.

[0043] S4. Feed feeding: feeding floating compound feed, the protein content of which is 30%.

[0044] S5. Net cage replacem...

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PUM

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Abstract

The invention discloses a method for raising squaliobarbus curriculus parent fishes by utilizing a net cage, and relates to the technical field of aquaculture. The method comprises the steps of raising environment treatment, net cage arrangement, fingerling putting, feed feeding, net cage replacement, feed replacement and the like. According to biological characteristics of squaliobarbus curriculus and growth stages of squaliobarbus curriculus in the net cage, squaliobarbus curriculus is fed with different feeds, and the demand of squaliobarbus curriculus for nutrition is met. According to the method for raising squaliobarbus curriculus parent fishes by utilizing the net cage, the raising density of squaliobarbus curriculus can be increased, and the maturing rate of the parent fishes and the unit fry reproduction rate of the parent fishes are increased.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for raising broodstock of red-eyed trout in a net cage. Background technique [0002] Breeding of freshwater fish broodstock is usually carried out in ponds, the stocking density is generally 180kg per mu, and the breeding maturity rate is about 80%. When existing red-eyed trout parents are cultivated in ponds, the density is relatively thin, and more broodstock breeding ponds will be used. Moreover, because the red-eyed trout is lively and likes to jump, it is more likely to be injured when it is mature and fished, which will affect the reproductive effect. The maturity rate is generally about 85%, and the breeding cost is relatively high. [0003] At present, there is a breeding method for raising red-eyed trout in cages, but due to the biological characteristics of red-eyed trout, it is not easy to improve the quality of the common fish if the common feeding meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A23K50/80A23K10/30A23K10/18A23K20/174A23K20/142A23K10/20A23K10/22A23K10/37A23K20/105A23K20/20A23K20/24A23K20/158A23K20/163
CPCA01K61/00Y02A40/81Y02A40/818Y02P60/87
Inventor 叶忠平
Owner 叶忠平
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