Table 5 Variancesa of random group- (\({\upsigma }_{{\text{g}}}^{2}\)), litter- (\({\upsigma }_{{\text{l}}}^{2}\)), and residual (\({\upsigma }_{{\text{e}}}^{2}\)) effects, phenotypic (\({\upsigma }_{{\text{P}}}^{2}\)) and total genetic variance (\({\upsigma }_{{{\text{TGE}}}}^{2}\)), and direct heritability (\({\text{h}}^{2}\)) for average daily gain (g/day) in Landrace (\({\text{L}}\)), Yorkshire (\({\text{Y}}\)), and crossbreds (\({\text{YL}}\))
From: Selection for social genetic effects in purebreds increases growth in crossbreds
Population | \({{\varvec{\upsigma}}}_{{\mathbf{g}}}^{2}\) | \({{\varvec{\upsigma}}}_{{\mathbf{l}}}^{2}\) | \({{\varvec{\upsigma}}}_{{\mathbf{e}}}^{2}\) | \({{\varvec{\upsigma}}}_{{\mathbf{P}}}^{2}\) | \({{\varvec{\upsigma}}}_{{{\mathbf{TGE}}}}^{2}\) | \({\mathbf{h}}^{2}\) | \({{\varvec{\upsigma}}}_{{{\mathbf{TGE}},{\mathbf{k}} - {\mathbf{YL}}}}^{2}\) a |
|---|---|---|---|---|---|---|---|
\({\text{L}}\) | 777 (33) | 654 (29) | 6373 (72) | 10,588 (93) | 3167 (336) | 0.25 (0.01) | 5408 (785) |
\({\text{Y}}\) | 939 (33) | 539 (24) | 6977 (68) | 11,780 (97) | 3972 (403) | 0.27 (0.01) | 4508 (799) |