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Table 6 Predictive abilitya and bias of predictionsb in the commercial data

From: Effect of genomic selection and genotyping strategy on estimation of variance components in animal models using different relationship matrices

 

Model

Male

Female

Genotyped

Ungenotyped

Genotyped

Ungenotyped

Predictive ability

A-AM

0.15

0.21

0.25

0.26

H-AM

0.31

0.22

0.40

0.28

H-AM (VC-A)

0.40

0.42

0.44

0.49

Regression coefficientc

A-AM

0.93

0.96

0.89

0.95

H-AM

1.01

0.98

0.83

0.77

H-AM (VC-A)

0.99

0.90

0.98

0.89

  1. A-AM animal model with pedigree-based relationship matrix using VC estimated from A-AM, H-AM animal model with combined pedigree-based and genomic relationship matrix using VC estimated from H-AM, H-AM(VC-A) animal model with combined pedigree-based and genomic relationship matrix using VC estimated from A-AM
  2. aPredictive ability is correlation between predicted breeding value and corrected phenotype
  3. bBias of predicted breeding value is measured by the regression coefficients of predicted breeding values on corrected phenotypes, deviation from unity indicates a bias (inflation or deflation) in breeding values
  4. cRegression coefficients of predicted breeding values on corrected phenotypes
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Genetics Selection Evolution

ISSN: 1297-9686