Carp family selective breeding method utilizing net cage

A cage and family technology, applied in the breeding field of carp family selection, can solve the problems of error in experimental results, occupying a large pond, and difficult to popularize, and achieve the effect of easy breeding and selection, elimination of experimental error, and saving pond water surface

Inactive Publication Date: 2010-12-01
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

The first method generally requires a pond for each family, and the conditions of each pond are also different, which may easily cause errors in the experimental results.
When comparing the growth performance of multiple families, a large number of ponds will be occupied, which is actually very difficult to do; the second method can be applied to multiple families, but the cost of chips is high and requires high technical personnel, so it is difficult to popularize

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0007] 1. Set up the cage. 1. The setting of broodstock breeding cages. The cage can be closed, the size is 1 cubic meter, the mesh mesh is 30 mesh, and a fish nest is placed in the cage to attach fish eggs. The net cage is arranged in the cement pool, and the water depth in the net cage is about 90 centimeters (in order to increase the water body and make full use of the eggs attached to the inner wall of the net cage), and the water quality is well water through aeration. 2. The setting of breeding cages. Closeable net cages with a size of 1 cubic meter and a mesh of 20 mesh. All the net cages are set in the same 2-acre pond, and the water depth in the net cage is about 70 cm. Second, establish a family line. Broodstock from 4 populations with different genetic backgrounds were mated and reproduced on a one-to-one ratio between male and female. The paired broodstock is put into the broodstock breeding net cage (every pair of broodstock puts a net cage) after artificial i...

Embodiment approach 2

[0009] 1. Set up the cage. 1. The setting of broodstock breeding cages. A closed cage with a size of 1 cubic meter and a mesh of 30 meshes. A fish nest is placed in the cage to attach fish eggs. The net cage is set in the pond, and the water depth in the net cage is about 90 centimeters, and the water quality is well water through aeration. 2. The setting of breeding cages. Closeable net cages with a size of 1 cubic meter and a mesh size of 20 mesh. All the net cages are set in the same 2-acre pond with a water depth of about 70 cm. Second, establish a family line. 60 broodstocks from the same genetic background were selected and paired on a one-to-one ratio between males and females for mating and breeding. A total of 30 pairs of broodstocks were mated. The paired broodstock is put into the broodstock breeding net cage (every pair of broodstock puts a net cage) after artificial induction of labor, and the net cage is closed to prevent the parent fish from jumping out. Af...

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PUM

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Abstract

The invention belongs to a fish breeding technology, in particular to a carp family selective breeding method utilizing a net cage. At present, the family selection method is used intensively for the selective breeding of carps, and the traditional method carries out growth performance comparison and selection on multiple families, thus occupying a great quantity of ponds and actually being difficult to practice; and the method of injecting an electronic chip injection family marking mixed cultivation and family selection method has high cost and high requirements on technical personnel and is difficult to popularize. The invention adopts an family selection method utilizing an enclosed net cage to carry out feeding and growth performance comparison on multiple families, eliminates experimental errors caused by pond separated cultivation, saves a great quantity of the water surfaces of ponds, does not need a chip for marking, saves cost, is suitable for common breeding farms and facilitates carrying out selective breeding of multiple families.

Description

Technical field: [0001] The invention belongs to the fish breeding technology, and specifically relates to a cultivation method for carp family selection and breeding by using a net cage. Background technique: [0002] Carp is a traditional cultured fish in my country, and it is also the main freshwater cultured fish, which is suitable for farming in most areas of our country. The culture of carp has a long history, there are many breeds, and the breeding technology is mature, so it is difficult to increase the breeding output only through the breeding technology. Therefore, in order to further improve the yield and quality of carp, it is necessary to carry out genetic improvement on the currently farmed species. At present, the selective breeding of carp widely adopts the method of family selection. In family selection breeding, try to establish as many families as possible if conditions permit. The more families there are, the greater the chance of selection, the higher ...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 朱健李冰张成锋王建新谢婷婷何杰
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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