Fig. 3

Variance, heritability, and repeatability estimates across the years for cow at weaning temperament. \({\upsigma }_{\mathrm{cg}}^{2}\) is the contemporary group variance; \({\upsigma }_{\mathrm{u}}^{2}\) is the additive genetic variance; \({\upsigma }_{\mathrm{pe}}^{2}\) is the permanent environmental variance; \({\upsigma }_{\mathrm{e}}^{2}\) is the residual variance; \({\mathrm{h}}^{2}\) is the heritability; and Rep is the repeatability