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Table 4 Posterior means (posterior SD) of variance components for the traits involved in lactation feed efficiency based on the multiple trait animal model

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

Parameter

dLFI

dSWB

dLWG

dBFTB

SMBW

\({\upsigma }_{\mathrm{a}}^{2}\)

0.16 (0.02)

0.06 (0.01)

0.04 (0.008)

0.16 (0.03)

8.18 (1.49)

\({\upsigma }_{\mathrm{cg}}^{2}\)

0.28 (0.03)

0.10 (0.01)

0.03 (0.006)

0.21 (0.05)

3.70 (0.58)

\({\upsigma }_{\mathrm{p}}^{2}\)

0.03 (0.01)

0.05 (0.01)

0.02 (0.006)

0.08 (0.03)

4.99 (0.90)

\({\upsigma }_{\mathrm{e}}^{2}\)

0.26 (0.01)

0.17 (0.009)

0.05 (0.004)

0.41 (0.03)

3.74 (0.23)

\({\mathrm{h}}^{2}\)

0.21 (0.03)

0.16 (0.03)

0.27 (0.05)

0.18 (0.04)

0.41 (0.05)

  1. dLFI = daily lactation feed intake (kg/day); dSWB = daily sow weight balance (kg/day); dLWG = daily litter weight gain (kg/day); dBFTB = daily back fat thickness balance (mm/10); SMBW = sow metabolic body weight (kg0.75)
  2. \({\upsigma }_{\mathrm{a}}^{2}\) = additive variance; \({\upsigma }_{\mathrm{cg}}^{2}\) = contemporary group variance; \({\upsigma }_{\mathrm{p}}^{2}\) = permanent variance; \({\upsigma }_{\mathrm{e}}^{2}\) = residual variance; \({\mathrm{h}}^{2}\) = heritability