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Table 4 Estimated genetic parameters when male and female total (IgTotal) IgM, and IgG KLH-binding natural antibody titers are treated as genetically different traits in bi-variate analyses (standard errors in parentheses)

From: Divergent selection for natural antibodies in poultry in the presence of a major gene

  IgM IgG IgTotal
Male Female Male Female Male Female
Phenotypic variance (\({\sigma }_{p}^{2}\)) 1.28(0.03) 1.05(0.02) 1.96(0.04) 1.93(0.04) 1.90(0.04) 1.79(0.03)
Heritability (\({h}^{2}\)) 0.30(0.03) 0.32(0.03) 0.11(0.02) 0.14(0.02) 0.12(0.02) 0.15(0.02)
Maternal env. effects (\({m}^{2}\)) 0.04(0.01) 0.04(0.01) 0.03(0.01) 0.02(0.01) 0.05(0.01) 0.02(0.01)
\({\mathrm{r}}_{\mathrm{a}}\) 0.96(0.04) 0.88(0.10) 0.78(0.11)
\({\mathrm{r}}_{\mathrm{m}}\) 0.74(0.23) 0.91(0.42) 0.86(0.34)
  1. \({\mathrm{r}}_{\mathrm{a}}\) is the correlation between additive genetic effects and \({\mathrm{r}}_{\mathrm{m}}\) is the correlation between maternal environmental effects