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Breeding and culturing method of improved crucian carp

A breeding method and a female parent technology, which are applied in the breeding field, can solve problems such as restricting the promotion of crucian carp breeding, degeneration of species germplasm, and reduction in yield, etc., and achieve the effects of strong stress resistance, fast growth, and silvery white scales.

Inactive Publication Date: 2011-01-12
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to many years of breeding, the existing species have problems such as germplasm degradation and yield reduction, which restricts the promotion of crucian carp breeding.

Method used

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Embodiment 1

[0037] Select broodstock in autumn and winter. The female parent is a kind of crucian carp in Northeast my country, with a weight of more than 500 grams and an age of 1 to 3 years; the male parent is a fish of Cyprinidae and Subfamily subfamily, 2 to 4 years old, with a weight of not less than 1 kg. The parent body is complete, without injury or disease.

[0038] Separate cultivation and special pond cultivation are adopted. The water depth of the female parent breeding pool is 1.5-2 meters, the bottom of the pool is flat, there are no gravels, weeds, wild fish and other harmful organisms, and it is convenient to enter and drain. The stocking density is about 150 kilograms per mu, which should not be too large. During the cultivation period, wheat bran, bean cake, rapeseed cake can be fed, and pellet compound feed can also be fed. As the temperature rises, gradually increase the feeding amount, and the daily feeding amount is 2% to 5% of the fish's body weight. Maintain go...

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Abstract

The invention belongs to a freshwater fish cross breeding technology in the culture field, and in particular relates to a breeding and culturing method of hybridized crucian carp, which comprises the following steps: (1) selecting parent fish: selecting Pengze crucian carp as a female parent and Ictiobus cyprinellus as a male parent; (2) culturing the parent fish: culturing the female parent and the male parent in separate pools; (3) injecting hormone for induced spawning; (4) carrying out artificial insemination; (5) carrying out abhesion treatment on the oosperm; (6) hatching the oosperm; and (7) culturing fish fry. The improved crucian carp bred and obtained by the method provided by the invention has fast growth, strong stress resistance and good meat quality, the improved crucian carp with good quality can be stably obtained, and the germplasm can not degenerate easily.

Description

technical field [0001] The invention belongs to the field of breeding, and relates to a freshwater fish hybrid breeding technology, in particular to a hybrid crucian carp breeding and breeding method. Background technique [0002] Crucian carp is rich in nutrition, delicious in meat, wide in distribution, strong in adaptability and easy to raise. It is a high-quality fish cultured artificially and is favored by consumers and farmers. At present, the species of crucian carp cultured in my country include gibel crucian carp, heterogeneous gibel crucian carp, Xiangyun crucian carp, and heterogeneous Qi crucian carp. [0003] However, due to many years of cultivation, problems such as germplasm degradation and yield reduction have occurred in existing varieties, which restrict the cultivation and promotion of crucian carp. Contents of the invention [0004] The purpose of the present invention is to address the deficiencies in the prior art, to provide a breeding and culture ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 邹记兴林永贺马建波催科房伟平廖富蘋陈振龙
Owner SOUTH CHINA AGRI UNIV
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