Family selection breeding method of red-line strain siniperca chuatsi

A technology of mandarin fish with cocked mouth and red stripes, which is applied in the field of family selection and breeding of mandarin fish with red stripes, can solve the problem of lack of species conservation and breeding, light color and genetic diversity of mandarin fish with red stripes Reduce problems such as ensuring quality and developmental synchronization, improving fertilization rate, improving inbreeding and breed degradation

Inactive Publication Date: 2018-11-02
FISHERIES RES INST ANHUI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there is a lack of effective species conservation and breeding technical measures for the red-striped mandarin fish, which...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A kind of family selection and breeding of red striped mandarin fish is carried out according to the following operation steps:

[0039] (1) Preferred parent

[0040] 120 male and 120 male and female broodstocks with pale yellow body color and red body surface lines were selected from 800 populations of mandarin fish with variation in body color. 40 male and female red-striped mandarin fish with high fullness were selected as candidate broodstock.

[0041] (2) Establish a family

[0042] (2.1) Parental reinforcement cultivation

[0043] 80 male and female alternative broodstock were isolated and placed in a cage with a length of 1.5 meters, a width of 1.5 meters and a height of 2 meters. The cages are placed in a pond with a water depth of 2.5 meters. Each cage is placed with 5 males or 5 females, and 8 cages are placed in each male and female, and dace is used as bait. The fish were fed twice a day, and the daily feeding amount was 5% of the fish body weight, and c...

Embodiment 2

[0057] A kind of family selection and breeding of red striped mandarin fish is carried out according to the following operation steps:

[0058] (1) Preferred parent

[0059] 150 male and 150 male and female broodstocks with pale yellow body color and red body surface lines were selected from 1000 populations of Variegated mandarin fish in body color. 50 male and female red-striped mandarin fish with high fullness were selected as candidate broodstock.

[0060] (2) Establish a family

[0061] (2.1) Parental reinforcement cultivation

[0062] 100 male and female alternative broodstock were isolated and placed in a cage with a length of 2 meters, a width of 2 meters and a height of 1.5 meters. The mesh of the cage was 60 meshes for adaptive strengthening cultivation. In the pond, 5 males or 5 females of red-striped mandarin fish were placed in each cage, 10 cages for each male and 10 males, and dace as bait fish were fed twice a day. The daily feeding amount was 8% of the fis...

Embodiment 3

[0076] A kind of family selection and breeding of red striped mandarin fish is carried out according to the following operation steps:

[0077] (1) Preferred parent

[0078] 100 male and 100 male and female broodstocks with pale yellow body color and red body surface were selected from 600 populations of mandarin fish with variation in body color. 30 male and female red-striped mandarin fish with high fullness were selected as candidate broodstock.

[0079] (2) Establish a family

[0080] (2.1) Parental reinforcement cultivation

[0081] The 60 male and female alternative broodstock were isolated and placed in a cage with a length of 2 meters, a width of 2 meters and a height of 1.5 meters. The mesh of the cage was 60 meshes for adaptive strengthening cultivation. In the pond, 6 males or 6 females of red-striped mandarin fish were placed in each cage, with 5 cages for each male and 5 males, and dace as bait fish, twice a day. The daily feeding amount was 8% of the fish bod...

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PUM

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Abstract

The invention relates to a family selection breeding method of red-line strain siniperca chuatsi. The method comprises the following steps that 1, red-line siniperca chuatsi which is light yellow in color and has red body surface lines and obvious growth advantages is selected from a siniperca chuatsi population variant in body color to serve as standby parents; 2, after the selected female and male parents are subjected to adaptability breeding strengthening, artificial directional mating and induced spawning are carried out on each pair of male and female parents, and fertilized eggs produced by each pair of parent fishes are transferred into incubation barrel for independent breeding; 3, in the young fish stage and the adult fish stage of growth of siniperca chuatsi, a family high in red-line siniperca chuatsi proportion and high in weight gain rate is selected out to serve as a next-generation selection breeding basic family. Through the method, 4-6 generations of continuous selection breeding are carried out so that the red-line strain siniperca chuatsi bright in color, symmetric and attractive in body shape, strong in physique and obvious in variety feature can be bred. The method effectively solves the problems that the varieties of red-line siniperca chuatsi are mixed and degradation is serious; inbreeding is avoided, and the diversity of the genetic structure of the population is kept; selection breeding is carried out many times from the parents to fry, and the selection breeding efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a family breeding method of red striped mandarin fish. Background technique [0002] mandarin fish ( siniperca chuatsi ) is homophonic with "Gui Yu", which symbolizes "rich and noble." It is a normal body color, with 3 black stripes on the head and light black on the side of the body. The red-striped mandarin fish is an individual differentiated from the common mandarin fish group. The 3-striped road on the head is mutated to red, and the side of the body is pale yellow. At present, the breeding of mandarin fish is mainly based on growth rate as the target trait for selection and breeding, while the research on family selection with body color as the target trait has not been reported yet. The mandarin fish with red stripes is bright in color, which adds ornamental value and economic value on the basis of mandarin fish's meaning of "rich and noble", and has gre...

Claims

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Application Information

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IPC IPC(8): A01K61/10A01K61/17A01K61/95
CPCA01K61/10A01K61/17A01K61/95Y02A40/81
Inventor 吴明林崔凯李海洋侯冠军蒋阳阳李静
Owner FISHERIES RES INST ANHUI ACAD OF AGRI SCI
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