Analysis of the causal structure of traits involved in sow lactation feed efficiency

Table 3 Posterior means and 95% highest posterior density (HPD_95%) intervals of structural coefficients pertaining to the structural equation model that results from implementation of the inductive causation algorithm based on HPD_95% intervals

Structural coefficient^a	Posterior mean [HPD_95%]	Standardized posterior mean^b
\({\lambda }_{dSWB\leftarrow dLFI}\)	0.12 [0.08,0.15]	0.30 [0.22,0.39]
\({\lambda }_{dSWB\leftarrow dLWG}\)	− 0.03 [− 0.05,− 0.004]	− 0.05 [− 0.09,− 0.008]
\({\lambda }_{dBFTB\leftarrow dSWB}\)	0.70 [0.55,0.87]	0.47 [0.37,0.58]
\({\lambda }_{SMBW\leftarrow dSWB}\)	− 1.22 [− 1.59,− 0.87]	− 0.07 [− 0.09,− 0.05]

^a\({\lambda }_{i\leftarrow j}\) denotes a structural coefficient which represents the effect of trait j on trait i. dLFI = daily lactation feed intake (kg/day); dSWB (daily sow weight balance (kg/day); dLWG = daily litter weight gain (kg/day); dBFT = daily back fat thickness (mm/day); SMBW = sow metabolic body weight
^bStandardized structural coefficient was calculated as \({\uplambda }_{\mathrm{i}\leftarrow \mathrm{j}}\frac{\mathrm{sd}(\mathrm{j})}{\mathrm{sd}(\mathrm{i})}\)

ISSN: 1297-9686