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Table 3 Variance components of the classical linear mean model and two double hierarchical generalized linear models DHGLM1 and DHGLM2 (log-transformed data)

From: Genetic heterogeneity of within-family variance of body weight in Atlantic salmon (Salmo salar)

Sub-model Variance component Classical DHGLM1 DHGLM2
Mean Sire-dam - - 0.005 ± 0.001
  Genetic1 0.023 ± 0.003 0.007 ± 0.002 0.022 ± 0.003
  Common environment 0.001 ± 0.001 0.005 ± 0.001 0.001 ± 0.001
  Residual 0.047 ± 0.002 - -
  Heritability 0.321 ± 0.040 - -
Variance Sire-dam - 0.042 ± 0.011 0.034 ± 0.009
  Genetic1 - 0.166 ± 0.042 0.138 ± 0.037
  1. 1Genetic variance is defined as 4*sire-dam variance.