Table 3 Parameter estimates (standard errors in brackets) from bivariate classical and a social genetic effects models for average daily gain (g/day) in gilts and boars as separate traits
From: Social genetic effects for growth in pigs differ between boars and gilts
Component | Model | |||
|---|---|---|---|---|
Classical | Social | |||
Boars | Gilts | Boars | Gilts | |
\({\upsigma}_{{{\mathbf{A}}_{\text{D}} }}^{2}\) | 2883.4 (232.7) | 2389.2 (163.9) | 2868.9 (233.3) | 2508.7 (164.5) |
\({\upsigma}_{{{\mathbf{A}}_{\text{S}} }}^{2}\) | 13.8 (5.8) | 9.3 (3.9) | ||
\({\upsigma}_{{{\mathbf{A}}_{\text{DS}} }}\) | − 7.58 (31.1) | − 34.0 (20.8) | ||
\({\upsigma}_{g}^{2}\) | 1111.0 (64.2) | 1038.0 (42.1) | 979.0 (87.6) | 989.3 (57.4) |
\({\upsigma}_{l}^{2}\) | 930.9 (75.7) | 724.1 (44.8) | 927.3 (75.6) | 722.5 (44.8) |
\({\upsigma}_{{{\mathbf{A}}_{\text{Db}} {\mathbf{A}}_{\text{Dg}} }}\) | 2368.6 (163.4) | |||
\({\upsigma}_{{{\mathbf{A}}_{\text{Db}} {\mathbf{A}}_{\text{Sg}} }}\) | − 35.65 (23.42) | |||
\({\upsigma}_{{{\mathbf{A}}_{\text{Dg}} {\mathbf{A}}_{\text{Sb}} }}\) | − 11.9 (28.2) | |||
\({\upsigma}_{{{\mathbf{A}}_{\text{Sb}} {\mathbf{A}}_{\text{Sg}} }}\) | 3.45 (3.5) | |||
\({\upsigma}_{{l_{{{\text{b}},{\text{g}}}} }}\) | 657.0 (44.5) | 654.5 (44.5) | ||
\({\upsigma}_{e}^{2}\) | 8270.0 (141.6) | 5903.4 (92.6) | 8263.8 (142.8) | 5877.6 (94.1) |
\(h^{2} /{\text{T}}^{2}\) | 0.219 (0.012) | 0.238 (0.016) | 0.320 (0.020) | 0.273 (0.014) |
\({\upsigma}_{TBV}^{2}\) | 4286.2 (263.76) | 2795.2 (140.2) | ||
\(r_{{{\mathbf{A}}_{\text{Db}} ,{\mathbf{A}}_{\text{Dg}} }}\) | 0.883 (0.02) | 0.882 (0.02) | ||
\(r_{{{\mathbf{A}}_{\text{D}} ,{\mathbf{A}}_{\text{S}} }}\) | − 0.038 (0.157) | − 0.222 (0.140) | ||
\(r_{{{\mathbf{A}}_{\text{Sb}} ,{\mathbf{A}}_{\text{Sg}} }}\) | 0.304 (0.304) | |||
\(r_{{{\mathbf{A}}_{\text{Db}} ,{\mathbf{A}}_{\text{Sg}} }}\) | − 0.218 (0.144) | |||
\(r_{{{\mathbf{A}}_{\text{Dg}} ,{\mathbf{A}}_{\text{Sb}} }}\) | − 0.064 (0.152) | |||
\(\Delta {\text{LogL}}\) | 10.3 (P = 0.17) | |||