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Oval pompano body mass breeding method based on Gompertz model

A technology for oval pomfret and pomfret body, which is applied in fish farming, application, animal husbandry and other directions, can solve problems such as slow growth of varieties, degradation of germplasm, etc., achieve high accuracy, avoid inbreeding, and large genetic improvement effect of space

Active Publication Date: 2020-02-11
SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for breeding body quality of pomfrets based on the Gompertz model, to solve the problems of slow growth and germplasm degradation caused by inbreeding in the large-scale breeding process of existing pomfrets

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  • Oval pompano body mass breeding method based on Gompertz model
  • Oval pompano body mass breeding method based on Gompertz model

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[0031] The present invention will be further described below in conjunction with specific examples, so that those skilled in the art can better understand and implement the technical solution of the present invention.

[0032] A kind of ovoid pomfret body quality breeding method based on Gompertz model, comprises the following steps:

[0033] (1) Construct a selective breeding population of ovate pomfret, carry out nutritional enhancement of broodstock and gonad stimulation to induce production, obtain fertilized eggs, and then carry out offspring seed cultivation and sea area culture. Specific steps are as follows:

[0034] The F3 individuals of the ovoid pomfret breeding population were used as candidate parents. During the first two months of the breeding season, fresh squid, miscellaneous fish, bonito and multivitamins were mixed and fed to strengthen the nutrition of the broodstock and stimulate the maturation of the gonads. Chorionic gonadotropin (HCG), ovulation-stimul...

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Abstract

The invention provides an oval pompano body mass breeding method based on a Gompertz model. The method includes the steps: measuring multiple body mass data of an oval pompano breeding group; buildinga Gompertz model of body mass of each pompano body; calculating an optimal value of body mass growth velocity of each pompano body; calculating an breeding value of body mass growth velocity of eachpompano body according to a additive genetic correlation matrix constructed by a micro-satellite marker; selecting and remaining candidate parents according to the breeding values of the body mass growth velocity, and designing mating schemes of the candidate parents to complete oval pompano body mass breeding. According to the method, new strains of rapid growth of oval pompano can be cultured, consanguineous mating is avoided, and breeding efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of aquatic animal breeding, and relates to a method for breeding oval pomfret body quality based on a Gompertz model. Background technique [0002] Oval pomfret (Trachinotus ovatus), commonly known as golden pomfret, yellow wax pomfret, and red three yellow wax pomfret, is a warm-water, eurysalin, and migratory fish. It is widely distributed in tropical and subtropical seas such as the South my country Sea, Indian Ocean, and Mediterranean Sea. Belonging to carnivorous fish, its group feeding behavior is fierce, and it can eat commercial compound feed with suitable caliber after domestication. Oval pomfret is a high-quality seawater edible fish with rapid growth, tender meat, delicious taste and high economic value. It has become one of the important marine fish culture species in coastal areas such as Guangdong, Guangxi and Hainan. However, with the continuous expansion of its breeding scale, problems such a...

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Application Information

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IPC IPC(8): A01K61/95
CPCA01K61/95
Inventor 张殿昌刘宝锁江世贵郭华阳张楠郭梁朱克诚
Owner SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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