Table 4.
Main significant fixed effects and their two-way interactions in the final linear mixed effects regression model for calcium absorption (Parameter estimates (β) with their standard errors)
| Variables | Estimate (β) | se | P |
|---|---|---|---|
| Intercept | −0·00159 | 0·00668 | <0·001 |
| TCa | 0·596 | 0·0293 | <0·001 |
| PP | −0·253 | 0·0574 | <0·05 |
| NPP | 0·106 | 0·0524 | <0·001 |
| ExPhyt | 0·00172 | 0·000305 | <0·001 |
| TCa×ExPhyt | −0·00693 | 0·00101 | <0·001 |
| TCa×PP | – | – | NS |
| TCa×NPP | – | – | NS |
| PP×ExPhyt | 0·0121 | 0·00312 | <0·001 |
| PP×NPP | – | – | NS |
| NPP×ExPhyt | – | – | NS |
| Pig genotype | – | – | NS |
| Pig sex | – | – | NS |
TCa, total Ca intake; PP, phytate-P intake; NPP, non-phytate-P intake; ExPhyt, exogenous phytase intake.