Table 6 The accuracy of EBV (mean (SD) of 50 replicates) in scenario S₁₂L_2 × 3 (group size = 12, individuals from four litters per pen) for trait 1 using bivariate model, based on group and individual records with different proportion of individuals having genotypes.

Genotype proportion	Model	Animals^a	Valid_R^b			Valid_nR^b
Genotype proportion	Model	Animals^a	Group records	Indiv. records	G/I ratio^c	Group records	Indiv. records	G/I ratio
100%	GBLUP	All	0.78 (0.01)	0.89 (0.01)	0.87 (0.01)	0.69 (0.03)	0.81 (0.01)	0.84 (0.03)
		Group I	0.78 (0.03)	0.89 (0.01)	0.87 (0.02)	0.69 (0.04)	0.82 (0.02)	0.84 (0.03)
		Group II	0.78 (0.01)	0.89 (0.01)	0.87 (0.01)	0.68 (0.03)	0.81 (0.01)	0.84 (0.03)
30%	ssGBLUP	All	0.68 (0.02)	0.78 (0.01)	0.88 (0.01)	0.55 (0.04)	0.64 (0.02)	0.86 (0.03)
		Group I	0.74 (0.03)	0.85 (0.02)	0.88 (0.02)	0.63 (0.04)	0.75 (0.03)	0.84 (0.04)
		Group II	0.67 (0.02)	0.76 (0.01)	0.88 (0.01)	0.54 (0.04)	0.62 (0.02)	0.86 (0.04)
0%	PBLUP	All	0.65 (0.02)	0.74 (0.01)	0.87 (0.01)	0.48 (0.04)	0.56 (0.03)	0.86 (0.04)
		Group I	0.66 (0.03)	0.75 (0.03)	0.88 (0.02)	0.48 (0.05)	0.56 (0.04)	0.85 (0.04)
		Group II	0.65 (0.02)	0.74 (0.01)	0.87 (0.01)	0.48 (0.04)	0.56 (0.03)	0.86 (0.04)

Accuracy was measured as correlation between true BV and EBV.
^aAll: all animals; Group I: the animals that were genotyped in the 30% genotyping scenario; Group II: the animals that were not genotyped in the 30% genotyping scenario.
^bValid_R, validation for animals with records; Valid_nR, validation for animals without records.
^cG/I ratio, ratio of accuracy for EBV predicted using group records to accuracy of EBV predicted using individual records.

Quick links

Search