| NDF | 52.1 | 51.5 | 51.1 | 48.2 | 3.1 | 0.40 | 0.72 |
| Starch | 88.8 | 88.6 | 87.6 | 86.8 | 0.009 | 0.14 | 0.74 |
| Feed N | 70.6 | 68.4 | 64.3 | 70.2 | 3.6 | 0.74 | 0.29 |
| Microbial N efficiency2 | 20.0 | 19.5 | 20.8 | 19.8 | 1.1 | 0.87 | 0.81 |
| Protein Efficiency3 | 1.00 | 1.00 | 1.06 | 0.99 | 0.03 | 0.68 | 0.30 |
| Fecal excretion, g/d |
|
|
|
|
|
|
|
| DM | 840 | 942 | 933 | 1034 | 42 | 0.01 | 0.99 |
| OM | 721 | 810 | 802 | 989 | 40 | 0.01 | 0.92 |
| NDF | 358 | 406 | 383 | 439 | 21 | 0.04 | 0.85 |
| Starch | 9.26 | 10.3 | 11.0 | 16.3 | 1.81 | 0.02 | 0.26 |
| N | 26.7 | 28.4 | 29.6 | 31.5 | 1.6 | 0.05 | 0.96 |
| GE, Mcal/d | 3.71 | 4.09 | 4.10 | 4.57 | 0.21 | 0.02 | 0.84 |
| Total tract digestion, % |
|
|
|
|
|
|
|
| DM | 81.1 | 79.0 | 79.3 | 77.1 | 0.93 | 0.02 | 0.98 |
| OM | 82.9 | 80.9 | 81.2 | 79.1 | 0.93 | 0.02 | 0.93 |
| NDF | 48.4 | 42.5 | 46.7 | 39.9 | 2.9 | 0.13 | 0.88 |
| N | 72.4 | 70.8 | 69.5 | 67.7 | 1.6 | 0.06 | 0.97 |
| Starch | 99.6 | 99.6 | 99.5 | 99.3 | 0.09 | 0.03 | 0.30 |
| DE diet (Mcal/kg) | 3.44 | 3.36 | 3.36 | 3.26 | 0.05 | 0.03 | 0.85 |
| DE (%) | 80.5 | 78.6 | 78.6 | 76.4 | 1.1 | 0.03 | 0.85 |