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Method for breeding carp quickly and efficiently

A high-efficiency, carp technology, applied in fish farming, application, climate change adaptation, etc., can solve the problems of long breeding cycle, inability to carry out long-term breeding, inbreeding decline, etc., and achieve high-efficiency breeding and long-term breeding. effect on breeding and avoiding inbreeding decline

Active Publication Date: 2012-09-05
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the breeding cycle of this method is long, and generally requires more than 5 to 6 generations.
Moreover, the fish bred in this way are very likely to be closely related. Therefore, after several generations of breeding, the problem of inbreeding depression will occur, and long-term breeding cannot be carried out.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment one: a kind of fast and efficient carp breeding method adopts following cultivation steps:

[0020] (1) Establishment of pedigrees: Breeding populations based on Jian carp and Yellow River carp. In April 2004, 20 male Jian carp and 20 female Jian carp, 20 male Jian carp and 20 female Yellow River carp, 20 Male Yellow River carp and 20 female Jian carp, 20 male Yellow River carp and 20 female Yellow River carp were paired with one male and one female in 80 1m×1m×1m cages to establish 80 first generation selection breeding family;

[0021] (2) Fish from 80 first-generation breeding families were isolated in 80 net cages. After artificial induction, a total of 76 fish families hatched fry, and fish from different families were isolated in different net cages for early stage breeding. Cultivation, the water temperature for early cultivation is 20-28°C, the water level in the cage is 70-80cm, and new water is added once every half a month; the 2nd to 15th day aft...

Embodiment 2

[0028] Embodiment two: a kind of fast and efficient carp breeding method adopts following cultivation steps:

[0029] (1) Establishment of families: In April 2006, 90 groups of second-generation selective breeding families and 20 groups of second-generation control families were used to establish families;

[0030] (2) After artificial induction of labor on the families, 81 breeding families and 16 control families were actually produced. The hatched fry were isolated and cultivated to about 10g, and 50 fish were randomly selected from each family for individual marking with PIT, and Measure data such as weight, body length, body height and body thickness of each fish;

[0031] (3) Put the marked fish into a 5-acre earthen pond for cultivation. Until December 2007, a total of 3,605 selected fish and 712 control fish were harvested, and the weight, body length, and height of each fish were measured. And body thickness and other data; use ASREML software to analyze the data to ...

Embodiment 3

[0033] Embodiment three: a kind of fast and efficient carp breeding method adopts the following cultivation steps:

[0034] (1) Establishment of families: In April 2008, 90 groups of third-generation selective breeding families and 20 groups of third-generation control families were used to establish families;

[0035] (2) After artificial induction of labor on the families, 84 selected breeding families and 19 control families were actually produced. The hatched fry were isolated and bred to about 10g, and 50 fish were randomly selected from each family for individual marking with PIT, and measured Data such as weight, body length, body height and body thickness of each fish;

[0036] (3) Put the marked fish into a 5-acre earthen pond for cultivation. Until December 2009, a total of 3,823 selected fish and 856 control fish were harvested, and the weight, body length, and height of each fish were measured. and body thickness data. Use ASREML software to analyze the data to o...

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Abstract

The invention relates to a method for breeding carp quickly and efficiently. The method is characterized by comprising the following culture steps of: establishing 80 first breeding families by taking carp and Yellow River carp as basic breeding colonies, hatching fish fry in net cages and performing early culture; injecting radio frequency marks into abdominal cavities of 50 fish fry selected from each family by using a syringe and individually marking; evaluating the breeding value of each fish fry by using ASReml software and according to a BLUP method; performing matched breeding on male fish with the evaluated breeding values in the first ninety places and female fish with the evaluated breeding values in the first ninety places, and establishing second breeding families; performing matched breeding on 20 male fish with the evaluated breeding values closest to 0 and 20 female fish with the evaluated breeding values closest to 0, and establishing second control families; and afterthe female fish are matched with the male fish, transferring fish nests with oosperms into hatching net cages to hatch to obtain the second generation of fish fry. By the method, the carp can be bredquickly and efficiently; inbreeding depression is avoided; and breeding can be performed for a long time.

Description

technical field [0001] The invention relates to a fast and efficient carp breeding method, which belongs to the field of aquatic breeding. Background technique [0002] The breeding of carp is usually through the method of group breeding, and the mature broodstock is selected according to the ratio of male to female ratio of 1:1. After injecting oxytocin, the broodstock is placed in the pond, and a fish nest is placed to collect fertilized eggs; Put the fish nests with fertilized eggs into the hatching tank for incubation, collect the hatched small fish for breeding, and after they develop to sexual maturity, select a certain number of fish as the next generation of parents according to the breeding index, and reproduce to produce the next generation ; In this way, through 5 to 6 generations of selective breeding, a population with excellent traits can be obtained. [0003] However, the breeding cycle of this method is long, generally requiring more than 5 to 6 generations...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 董在杰苏胜彦张成锋曲疆奇
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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