Table 3 The estimates of variance components (mean (SD) over 50 replicates) in the scenario S12L2 × 3 (group size = 12, individuals from four sublitters per pen) for trait 1 using univariate model based on group or individual records with different proportion of individuals having genotypes.

From: Prediction of breeding values for group-recorded traits including genomic information and an individually recorded correlated trait

Record

Genotype proportion

Analysis

Pen variance (\(\sigma _{c_1}^2\))

Litter variance (\(\sigma _{l1}^2\))

Additive genetic variance (\(\sigma _{a1}^2\))

Residual variance (\(\sigma _{e1}^2\))

  

Simulated

10

10

30

50

Group

100%

GBLUP

9.61 (4.37)

10.91 (6.64)

30.15 (5.28)

49.46 (37.63)

30%

ssGBLUP

9.35 (4.45)

11.04 (6.60)

31.59 (7.00)

50.67 (37.34)

0%

PBLUP

9.39 (4.55)

11.20 (6.77)

30.67 (7.90)

51.56 (39.88)

Individual

100%

GBLUP

9.98 (0.75)

9.96 (0.85)

30.11 (1.69)

50.15 (0.78)

30%

ssGBLUP

9.96 (0.74)

9.46 (0.95)

33.41 (2.35)

48.57 (1.32)

0%

PBLUP

9.85 (0.83)

9.94 (0.94)

30.85 (2.65)

50.03 (1.58)