| Item | Basal diet | SEM | NRCa |
| Steers wt. Kg | 253 | ||
| Intake, g/d | |||
| DM | 5,557 | 21 | |
| OM | 5,150 | 19 | |
| N | 97.4 | 0.4 | |
| Flow to duodenum, g/d | |||
| OM | 2,572 | 95 | |
| Microbial N | 66.1 | 1.5 | |
| Nonammonia N | 108.1 | 2.4 | |
| Feed N | 31.1 | 0.7 | |
| MN efficiency | 21.4 | 0.8 | |
| Metabolizable amino acids, g/d | |||
| Arginine | 19.8 | 0.6 | 16.9 |
| Threonine | 24.1 | 0.8 | 19.7 |
| Valine | 26.4 | 0.9 | 22.1 |
| Methionine | 10.2 | 0.4 | 8.4 |
| Isoleucine | 24.1 | 0.8 | 19.3 |
| Leucine | 41.1 | 1.3 | 34.9 |
| Phenylalanine | 22.2 | 0.7 | 18.9 |
| Lysine | 29.5 | 0.9 | 24.3 |
| Histidine | 7.6 | 0.2 | 7.9 |
| Ruminal digestion, % | |||
| OM | 62.5 | 1.4 | |
| Feed N | 68.1 | 1.8 | |
| Total-tract digestion, % | |||
| OM | 73.5 | 1 | |
| N | 62 | 0.9 | |