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Table 3 Direct and social genetic variances for average daily gain (g/day) on the diagonal, genetic covariances below the diagonal, and genetic correlations above the diagonal from matrix \({\text{G}}_{{\text{L}}}\) in Model 2 for Landrace (\({\text{L}}\)) and the \({\text{L}}\) dam component in the crossbreds (\({\text{YL}}\))

From: Selection for social genetic effects in purebreds increases growth in crossbreds

  Genetic effect \({\mathbf{L}}\) Dam (\({\mathbf{YL}}\))
Direct Social Direct Social
\({\text{L}}\) Direct 2659 (135) 0.00 (0.11) 0.46 (0.18) − 0.09 (0.22)
Social 0.3 (13.8) 5.9 (2.0) 0.66 (0.36) 0.52 (0.48)
Dam (\({\text{YL}}\)) Direct 1216 (469) 82.0 (47.3) 2608 (1125) − 0.18 (0.38)
Social − 30.2 (72.8) 8.2 (7.7) − 60.5 (128) 41.5 (28.2)
  1. Standard errors are shown in brackets