Table 6 Estimates of genetic parameters for all traits obtained by three different kinds of relationship matrices
TraitRelationshipEmbedded ImageEmbedded ImageEmbedded ImageEmbedded ImageEmbedded ImageEmbedded Image
LS0Aa1.37 (0.30)0.31 (0.16)2.06 (0.33)7.79 (0.27)0.12 (0.03)
Ga2.25 (0.42)0.30 (0.16)1.76 (0.34)7.81 (0.27)0.19 (0.03)
Ha2.44 (0.45)0.31 (0.16)1.70 (0.34)7.81 (0.27)0.20 (0.03)
LW0Aa5.76 (0.83)0.53 (0.33)3.86 (0.70)14.5 (0.5)0.23 (0.03)
Ga8.46 (1.10)0.49 (0.33)3.15 (0.72)14.5 (0.5)0.32 (0.03)
Ha9.09 (1.17)0.50 (0.33)3.02 (0.73)14.6 (0.5)0.34 (0.04)
BM21Aa+x0.54 (0.07)0.02 (0.01)2.15 (0.06)0.61 (0.03)0.17 (0.02)
Ga+x0.73 (0.09)0.02 (0.01)2.13 (0.06)0.59 (0.03)0.22 (0.02)
Ha+x0.77 (0.10)0.03 (0.02)2.12 (0.06)0.59 (0.03)0.23 (0.03)
BM42Aa+x2.47 (0.23)0.35 (0.11)1.71 (0.09)2.82 (0.11)0.68 (0.04)0.35 (0.02)
Ga+x3.09 (0.29)0.30 (0.10)1.70 (0.09)2.82 (0.11)0.68 (0.04)0.40 (0.03)
Ha+x3.28 (0.31)0.34 (0.11)1.70 (0.09)2.82 (0.11)0.68 (0.04)0.41 (0.03)
BM63Aa+x3.89 (0.33)0.77 (0.20)1.19 (0.10)4.73 (0.17)0.80 (0.05)0.41 (0.02)
Ga+x4.89 (0.42)0.64 (0.16)1.19 (0.10)4.73 (0.17)0.80 (0.05)0.45 (0.02)
Ha+x5.17 (0.44)0.72 (0.19)1.19 (0.10)4.73 (0.17)0.80 (0.05)0.47 (0.02)
BMMAa5.59 (0.46)1.24 (0.16)5.74 (0.24)0.45 (0.03)
Ga7.01 (0.57)1.23 (0.16)5.75 (0.24)0.50 (0.03)
Ha7.42 (0.61)1.23 (0.16)5.75 (0.24)0.52 (0.03)
  • Traits: litter size (LS0), litter weight (LW0), body weights at ages of 21, 42, 63 days and at mating (BM21, BM42, BM63, BMM). Kinds of relationship matrices: pedigree-derived numerator relationship matrix (A), gene-drop derived (G), combined expected and observed genomic relationships (H); subscripts indicate that autosomal relationships only (a) or both autosomal and X-chromosomal relationships (a+x) were part of the model. Genetic parameters: Embedded Image: autosomal additive genetic variance, Embedded Image: X-chromosomal additive genetic variance, Embedded Image: common litter environmental variance, Embedded Image: permanent environmental variance, Embedded Image: residual variance, Embedded Image: heritability, standard errors in brackets.