Table 1.

The variance components (±standard errors) for six socially affected traits in Large White pigs.

Trait	ADG	D100	B100	ADFI	FCR	RFI
${\sigma }_A^2$	1173.85 ± 142.25	252.56 ± 33.27	131.63 ± 18.96	15311.26 ± 2217.03	42.93 ± 4.56	12476.73 ± 2187.07
${\sigma }_{Adge}^2$	1107.79 ± 147.13	212.63 ± 36.36	126.75 ± 27.78	14157.21 ± 3115.23	44.23 ± 8.74	11577.72 ± 2973.81
${\sigma }_{Asge}^2$	49.10 ± 9.26	8.36 ± 2.78	4.87 ± 1.56	109.09 ± 43.33	0.08 ± 0.03	97.23 ± 17.98
${\sigma }_P^2$	5335.67 ± 114.31	631.40 ± 43.26	292.49 ± 17.28	38278.14 ± 1156.69	138.47 ± 9.87	25993.18 ± 894.27
h 2	0.22 ± 0.01	0.40 ± 0.02	0.45 ± 0.03	0.40 ± 0.02	0.31 ± 0.01	0.48 ± 0.03
${\sigma }_{TBV}^2$	5587.34 ± 716.79	103.59 ± 13.31	598.62 ± 48.79	39423.18 ± 3883.17	101.11 ± 8.84	32734.68 ± 3101.25
${\sigma }_{T_P}^2$	27235.32 ± 1173.24	2243.46 ± 178.65	1387.33 ± 91.12	68527.17 ± 2796.35	307.61 ± 4.97	33449.05 ± 1357.95
T 2	0.22 ± 0.04	0.46 ± 0.06	0.43 ± 0.05	0.58 ± 0.09	0.33 ± 0.04	0.98 ± 0.17
$r_{A_{DS}}$	0.23 ± 0.11	0.58 ± 0.17	0.15 ± 0.09	0.35 ± 0.16	0.23 ± 0.10	0.70 ± 0.23

${\sigma }_A^2$, additive genetic variance; ${\sigma }_{Adge}^2$, genetic variance of direct genetic effects; ${\sigma }_{Asge}^2$, genetic variance of social genetic effects; ${\sigma }_P^2$, phenotypic variance; h², classical heritability ($h^2={\sigma }_A^2/{\sigma }_P^2$); ${\sigma }_{TBV}^2$, total heritable variance; ${\sigma }_{T_P}^2$, total phenotypic variance; T², total heritability ($T^2={\sigma }_{TBV}^2/{\sigma }_{T_P}^2$); $r_{A_{DS}}$, correlation between direct and social genetic effects.