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. | ||||
Body weight | 4.05 | 4.30 | 4.34 | 4.15 | 4.19 | 4.24 | 0.16 | 0.873 | – | – | – | – | 0.003 | 0.442 | 0.783 |
Urine volume | 28.0 | 34.2 | 31.5 | 25.2 | 24.2 | 27.8 | 1.45 | 0.037 | 0.427 | 0.103 | 0.010 | 0.571 | – | – | – |
Urinary | |||||||||||||||
pH (6.30 h) | 8.45 | 8.30 | 8.44 | 8.49 | 8.31 | 8.44 | 0.05 | 0.841 | – | – | – | – | 0.680 | 0.284 | 0.899 |
pH (12.30 h) | 8.18 | 8.36 | 8.30 | 8.25 | 8.16 | 8.19 | 0.05 | 0.287 | – | – | – | – | 0.762 | 0.456 | 0.351 |
Ca | 8.98 | 9.65 | 13.6 | 12.4 | 9.96 | 8.87 | 1.01 | 0.247 | – | – | – | – | 0.431 | 0.264 | 0.363 |
P | 1055 | 1110 | 1070 | 931 | 1022 | 1027 | 42.7 | 0.604 | – | – | – | – | 0.103 | 0.698 | 0.302 |
Mg | 11.3 | 6.06 | 5.54 | 7.11 | 6.03 | 5.87 | 0.62 | 0.483 | – | – | – | – | 0.040 | 0.304 | 0.430 |
K | 3415 | 3546 | 3707 | 3176 | 3154 | 3528 | 97.8 | 0.393 | – | – | – | – | 0.175 | 0.913 | 0.352 |
Na | 2041 | 2033 | 3122 | 2149 | 2267 | 2415 | 124 | 0.324 | – | – | – | – | 0.006 | 0.499 | 0.563 |
Urea | 54.4 | 61.3 | 77.8 | 57.5 | 71.8 | 74.7 | 2.67 | 0.103 | – | – | – | – | < 0.001 | 0.646 | 0.995 |
Creatinine | 1239 | 1241 | 1491 | 1438 | 1561 | 1513 | 42.5 | 0.070 | – | – | – | – | 0.059 | 0.696 | 0.014 |
Sulphate | 830 | 977 | 1301 | 989 | 1301 | 1607 | 54.1 | 0.820 | – | – | – | – | < 0.001 | 0.495 | 0.022 |
Ox | 59.7 | 54.8 | 56.1 | 54.2 | 51.1 | 45.3 | 1.61 | 0.032 | 0.524 | 0.563 | 0.003 | 0.808 | – | – | – |
Citrate | 202 | 198 | 195 | 308 | 190 | 180 | 17.9 | 0.192 | – | – | – | – | 0.150 | 0.022 | 0.144 |
Ammonium | 394 | 684 | 837 | 707 | 991 | 1138 | 98.0 | 0.845 | – | – | – | – | 0.005 | 0.663 | 0.058 |
RSS | |||||||||||||||
CaOx | 0.88 | 0.82 | 1.16 | 0.92 | 0.79 | 0.59 | 0.09 | 0.198 | – | – | – | – | 0.882 | 0.475 | 0.031 |
MAP | 3.29 | 2.64 | 3.44 | 4.41 | 4.70 | 5.00 | 0.90 | 0.772 | – | – | – | – | 0.515 | 0.942 | 0.322 |