Skip to main content

Table 5 Biases of genomic predictions for average daily gain (ADG) and feed conversion ratio (FCR) in different validation groups for univariate (UNI) or bivariate (BI) single-step genomic prediction models with or without metafounders (MF), each with their optimal weighting factor (ω) in the two populations

From: Single-step genomic evaluation with metafounders for feed conversion ratio and average daily gain in Danish Landrace and Yorkshire pigs

Population Trait Validation group UNI_SSGBLUP UNI_MF-SSGBLUP BI_SSGBLUP BI_MF-SSGBLUP
Landrace ADG (ω = 0.20) All 0.960 0.989 0.945 0.962
Genotyped 0.733 0.739 0.732 0.738
Non-genotyped 0.838 0.839 0.829 0.828
FCR (ω = 0.70) All 0.824 0.871 0.923 0.931
Genotyped 0.542 0.479 0.565 0.524
Non-genotyped 1.078 1.283 0.764 0.881
Yorkshire ADG (ω = 0.25) All 0.999 0.991 1.006 1.002
Genotyped 0.743 0.742 0.750 0.760
Non-genotyped 0.867 0.866 0.870 0.886
FCR (ω = 0.10) All 1.004 1.012 1.006 1.008
Genotyped 0.472 0.488 0.483 0.502
Non-genotyped 1.006 0.996 1.005 0.999
  1. The four methods are UNI_SSGBLUP, UNI_MF-SSGBLUP, BI_SSGBLUP and BI_MF-SSGBLUP
  2. Validation groups are the validation population including all the young pigs born between 1 May 2016 and 1 February 2017, and two subgroups of genotyped and non-genotyped animals
  3. The results for ADG and FCR for bivariate single-step genomic prediction models are obtained with their optimal ω respectively