Table 2. Energy concentrations and chemical compositions in feed ingredients, based on a literature review, for the development of nitrogen-corrected metabolizable energy prediction equations
| Item | Chemical compositions | GE(kcal/kg) | AMEn(kcal/kg) |
| CP | EE | CF | Ash | ADF | NDF |
| Feed ingredients |
| Maximum | 68.7 | 25.9 | 21.8 | 13.3 | 47.1 | 77.6 | 5,811 | 3,936 |
| Mean | 25.4 | 6.3 | 6.1 | 4.1 | 9.6 | 25.7 | 4,780 | 2,936 |
| Minimum | 7.5 | 0.2 | 0.4 | 0.5 | 0.5 | 3.5 | 3,925 | 1,746 |
| Max.-Min. | 61.2 | 25.7 | 21.4 | 12.8 | 46.7 | 74.0 | 1,886 | 2,190 |
| SD | 14.2 | 5.7 | 3.8 | 2.4 | 8.2 | 15.3 | 439.3 | 495.6 |