Fig. 5
From: Analysis of the causal structure of traits involved in sow lactation feed efficiency
Additive genetic association between daily sow weight balance (dSWB) and sow metabolic body weight (SMBW). a Total (\({\upsigma }^{*}\)) and direct additive (\(\upsigma \)) genetic association and b indirect additive genetic association. \(\text{Component}\,1:\left({\upsigma }_{\mathrm{a},\mathrm{dLFI}}^{2}\times {\uplambda }_{\mathrm{dSWB}\leftarrow \mathrm{dLFI}}+{\upsigma }_{\mathrm{a},\mathrm{dLFI},\mathrm{dSWB}}+{\upsigma }_{\mathrm{a},\mathrm{dLFI},\mathrm{dLWG}}\times {\uplambda }_{\mathrm{dSWB}\leftarrow \mathrm{dLWG}}\right){\times\uplambda }_{\mathrm{SMBW}\leftarrow \mathrm{dSWB}}\times {\uplambda }_{\mathrm{dSWB}\leftarrow \mathrm{dLFI}},\) \(\text{Component}\,2:\left({\upsigma }_{\mathrm{a},\mathrm{dLFI},\mathrm{dSWB}}\times {\uplambda }_{\mathrm{dSWB}\leftarrow \mathrm{dLFI}}+{\upsigma }_{\mathrm{a},\mathrm{dSWB}}^{2}+{\upsigma }_{\mathrm{a},\mathrm{dSWB},\mathrm{dLWG}}\times {\uplambda }_{\mathrm{dSWB}\leftarrow \mathrm{dLWG}}\right)\times {\uplambda }_{\mathrm{SMBW}\leftarrow \mathrm{dSWB}},\) \(\text{Component}\,3:\left({\upsigma }_{\mathrm{a},\mathrm{dLFI},\mathrm{dLWG}}\times {\uplambda }_{\mathrm{dSWB}\leftarrow \mathrm{dLFI}}+{\upsigma }_{\mathrm{a},\mathrm{dSWB},\mathrm{dLWG}}+{\upsigma }_{\mathrm{a},\mathrm{dLWG}}^{2}\times {\uplambda }_{\mathrm{dSWB}\leftarrow \mathrm{dLWG}}\right)\times {\uplambda }_{\mathrm{SMBW}\leftarrow \mathrm{dSWB}}\times {\uplambda }_{\mathrm{dSWB}\leftarrow \mathrm{dLWG}},\) \(\text{Component}\,4:{\upsigma }_{\mathrm{a},\mathrm{dLFI},\mathrm{SMBW}}\times {\uplambda }_{\mathrm{dSWB}\leftarrow \mathrm{dLFI}},\) \(\text{Component}\,5:{\uplambda }_{\mathrm{dSWB}\leftarrow \mathrm{dLWG}}\times {\upsigma }_{\mathrm{a},\mathrm{dLWG},\mathrm{SMBW}}\)