Table 4 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 \({\text{G}}_{{\text{Y}}}\) in Model 2 for Yorkshire (\({\text{Y}}\)) and the Y sire component in the crossbreds (\({\text{YL}}\))S
From: Selection for social genetic effects in purebreds increases growth in crossbreds
Genetic effect | \({\mathbf{Y}}\) | Sire (\({\mathbf{YL}}\)) | |||
|---|---|---|---|---|---|
Direct | Social | Direct | Social | ||
\({\text{Y}}\) | Direct | 3150 (129) | 0.07 (0.10) | 0.41 (0.17) | − 0.22 (0.26) |
Social | 8.8 (13.6) | 5.3 (1.7) | − 0.75 (0.28) | 0.34 (0.42) | |
Sire (\({\text{YL}}\)) | Direct | 1669 (720) | − 124 (52) | 5187 (1378) | − 0.48 (0.22) |
Social | − 64 (76) | 4.1 (5.1) | − 181 (109) | 27.5 (14.3) | |