P values (polynomial contrasts) | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Low protein quality | High protein quality | SEM | Interaction | Low protein quality | High protein quality | Protein concentration | Protein quality | ||||||||
36.7% | 45.0% | 56.1% | 36.2% | 43.3% | 54.9% | Lin. | Quadr. | Lin. | Quadr. | Lin. | Quadr. | ||||
Urea (mmol/l) | 7.99 | 8.77 | 9.56 | 7.89 | 8.45 | 9.60 | 0.17 | 0.453 | – | – | – | – | < 0.001 | 0.539 | 0.839 |
Creatinine (μmol/l) | 151 | 153 | 142 | 160 | 150 | 149 | 2.69 | 0.432 | – | – | – | – | 0.004 | 0.711 | 0.112 |