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Table 3 Posterior mean (posterior SD) of direct heritability, total heritability, genetic correlations, and variances of direct and indirect genetic effects (diagonal)

From: Selection for feed efficiency using the social effects animal model in growing Duroc pigs: evaluation by simulation

Trait

\( \varvec{h}^{2} \)

\( \varvec{T}^{2} \)

\( {\varvec{\upsigma}}_{{{\mathbf{Phe}}}}^{2} \)

Genetic effect

of traits

ADGDGE

ADGIGE

BFDGE

BFIGE

FCRDGE

FCRIGE

ADGa

0.31 (0.09)

0.63 (0.22)

0.75 (0.05)

ADGDGE

0.24 (0.08)

− 0.29 (0.25)

0.52 (0.17)*

− 0.19 (0.34)

− 0.03 (0.22)

− 0.35 (0.32)

ADGIGE

 

4 × 10−3 (1 × 10−3)

0.24 (0.29)

0.59 (0.26)*

0.70 (0.25)*

0.18 (0.36)

BF

0.39 (0.10)

0.74 (0.27)

11.84 (0.84)

BFDGE

  

4.69 (1.24)

− 0.09 (0.36)

0.33 (0.19)*

− 0.34 (0.31)

BFIGE

   

0.04 (0.02)

− 0.07 (0.38)

0.33 (0.38)

FCR

0.25 (0.07)

0.93 (0.43)

4.44 (0.44)

FCRDGE

    

1.10 (0.34)

− 0.17 (0.37)

FCRIGE

     

0.03 (0.02)

  1. Estimates obtained using the multi-trait social animal model
  2. aADG: average daily gain, BF: backfat thickness, FCR: feed conversion ratio, DGE: direct genetic effect, IGE: indirect genetic effect, \( h^{2} \): ratio of direct genetic effect variance to total phenotypic variance, \( T^{2} \): ratio of the total breeding value variation and the total phenotypic variance, \( {{\sigma }}_{\text{Phe}}^{2} \): the total phenotypic variance
  3. *Probability of being higher than 0 was higher than 0.95 or lower than 0.05