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Perca fluviatilis parent breeding method based on artificial propagation

A technology of artificial reproduction and red perch, applied in fish farming, application, climate change adaptation, etc., can solve the problems of low effect and poor disease resistance, achieve good production capacity, improve disease resistance, improve survival rate and The effect of disease resistance

Active Publication Date: 2017-10-24
CHENGDU ACAD OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wild red perch has high disease resistance and strong survival ability, while artificially bred red perch has poor disease resistance due to the limitation of living environment. Some researchers also consider breeding wild red perch as parents to improve its disease resistance in offspring, however with little effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The method for parent selection of red perch based on artificial breeding comprises the following steps:

[0034] S101, the selection of parents: choose the artificially bred red perch with strong physique, no injury and disease, no more than 1 year old, and a body weight of 120 grams as the parent seedlings;

[0035] S102. Temporary raising of parents: Put the selected broodlings into a holding pond for temporary raising, the ratio of male to female is 1:2, the water temperature in the holding pond is 2°C, the breeding density is 3 tails / ㎡, and dissolved in the water body Oxygen content is 4.5mg / L. During the temporary breeding period, surimi is fed as bait, and the feeding amount is about 2% of the total broodstock. The temporary breeding is 2.5 months, and the residual seedlings and dead seedlings are salvaged in time;

[0036] S103, male and female isolation: the female and male broodstock of red perch in the holding pond are isolated and cultivated, the breeding de...

Embodiment 2

[0042] The method for parent selection of red perch based on artificial breeding comprises the following steps:

[0043] S101, the selection of parents: select the artificially bred red perch with strong physique, no injury and disease, no more than 1 year old, and a body weight of 100 grams as the parent seedlings;

[0044] S102. Temporary raising of parents: Put the selected broodlings into a holding pond for temporary raising, the ratio of male to female is 1:3, the water temperature in the holding pond is 0°C, the breeding density is 5 fish / ㎡, and dissolved in the water body Oxygen content is 4mg / L. During the temporary breeding period, surimi is fed as bait, and the feeding amount is about 3% of the total broodstock. After 2 months of temporary breeding, residual seedlings and dead seedlings are salvaged in time;

[0045] S103, male and female isolation: the female and male broodstock of the red perch in the holding pond are isolated and cultivated, the breeding density o...

Embodiment 3

[0051] The method for parent selection of red perch based on artificial breeding comprises the following steps:

[0052] S101, the selection of parents: select the artificially bred red perch with strong physique, no injury and disease, no more than 1 year old, and a body weight of 150 grams as the parent seedlings;

[0053] S102. Temporary raising of parents: Put the selected broodlings into a holding pond for temporary raising, the ratio of male to female is 1:2.5, the water temperature in the holding pond is 5°C, the breeding density is 4 tails / ㎡, and dissolved in the water body The oxygen content is 3.5mg / L. During the temporary breeding period, the surimi is fed as bait, and the feeding amount is about 2.5% of the total broodstock. The temporary breeding is for 3 months, and the residual seedlings and dead seedlings are salvaged in time;

[0054] S103, male and female isolation: the female and male broodstock of red perch in the holding pond are isolated and cultivated, t...

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PUM

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Abstract

The invention discloses a perca fluviatilis parent breeding method based on artificial propagation. The method includes the steps of 1, selection of parents; 2, temporary rearing of parents; 3, isolation of male and female; 4, selection and breeding; 5, synchronous breeding of male and female: injecting oxytocin to female fishes with the age of 2 and the weight of 800-1000 g in a pool; 1-2 weeks after injection of the female fishes, conducting injection on male fishes with the age of 2 and the weight of 500-800 g in the pool; after feeding for 15-30 days, taking the female fishes and the male fishes in a net cage or a spawning pool as parents for fertilization. The perca fluviatilis parent breeding method has the advantages of improving the survival rate and disease resistance of the two-generation perca fluviatilis under an artificial propagation environment, and achieving the purpose of parent selection when the artificial propagation of the perca fluviatilis is conducted.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for breeding red perch parents based on artificial propagation. Background technique [0002] Red perch (Perca fluviatilis) belongs to Perciformes, Perca family, perch genus, also known as Wudaohei and multicolored grouper, is a rare sub-cold freshwater fish, widely distributed in the cold temperate zone of Europe and northern Asia, only in my country Produced in the Irtysh River and Ulungu River Basin in Xinjiang. It is a very important fishing object in Russia and is also an important game fish. Perch has the characteristics of wide salinity and wide temperature, strong fecundity, and the population increases rapidly. The natural production in northern Xinjiang is very large, especially in Fuhai County. The meat of this fish is plump, and it is one of the famous local edible fish. It is only produced in the Irtysh River system in Xinjiang in my country. The fish...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10
CPCA01K61/10Y02A40/81
Inventor 陈霞李良玉曹英伟杨壮志张小丽魏文燕杨马唐洪陈健刘家星
Owner CHENGDU ACAD OF AGRI & FORESTRY SCI
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