Method for establishing selection index for breeding Chinese prawn in multiple characters

A technology for selection index, Chinese prawns, applied in the direction of fish farming, application, climate change adaptation, etc., to achieve the effect of improving accuracy, eliminating the influence of selection index, and avoiding the formulation and calculation

Active Publication Date: 2007-05-09
青岛海壬水产种业科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no report on adopting the present invention to formulate selection index in aquatic animal breeding at home and abroad

Method used

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  • Method for establishing selection index for breeding Chinese prawn in multiple characters
  • Method for establishing selection index for breeding Chinese prawn in multiple characters
  • Method for establishing selection index for breeding Chinese prawn in multiple characters

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Embodiment Construction

[0016] The method for formulating selection index for Chinese prawn multi-trait breeding of the present invention will be described in detail below through examples.

[0017] The invention utilizes the importance of traits in breeding objectives, that is, the percentage value instead of economic weighting, and formulates a selection index based on the standardization of trait breeding values ​​to improve the efficiency and accuracy of selection.

[0018] First, establish a half-sib family of Chinese prawns, and perform performance test on multiple traits that need to be selected for breeding; then use the measured data and pedigree to calculate the breeding value of individual or family traits by BLUP method; The breeding values ​​are standardized, and the percentage weighted assignment is carried out according to their importance in the breeding goal, and the selection index is calculated; finally, the selection index is arranged in sequence, and individuals or families are se...

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Abstract

A method for defining the selective index used for the multi-character breeding of Chinese prawn includes such steps as using BLUP method to calculate the breeding value of each character for the individual or family, standardizing each breeding value, percentage weighting to the importance of each character in breeding target, and multiplying said standardized breeding value with the percentage weighted value to obtain said selective index used to choose individual or family.

Description

Technical field: [0001] The invention belongs to the selection breeding technology of aquatic animals, and is a method for effectively performing family selection and individual selection by using selection index in the selection breeding process. Background technique: [0002] In modern selective breeding research, the establishment of the selection index for multiple traits of individuals or families is based on the estimation of the breeding value of the breeding traits, and the estimation of the breeding value of the traits is mainly based on the best linear model based on the mixed model equation. Unbiased prediction (Best Linear UnbiasedPrediction, BLUP) method, which uses the information sources of phenotype and pedigree data, in the same mixed model equations, estimates fixed environmental effects and genetic effects and random genetic effects, increasing the breeding The reliability of the estimated value. In some aquatic animals such as Atlantic salmon, salmon, ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 栾生孔杰张勤
Owner 青岛海壬水产种业科技有限公司
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