Table 1.
Ingredients and chemical composition of the experimental diet (DM basis)
| Item | |
|---|---|
| Ingredient, % of DM | |
| Barley silage1 | 10 |
| Barley grain2, dry-rolled | 87 |
| Barley, ground | 0.92 |
| Canola meal | 0.83 |
| Calcium carbonate | 1.04 |
| Molasses | 0.04 |
| Salt | 0.09 |
| Feedlot premix3 | 0.02 |
| Urea | 0.06 |
| Vitamin E (500,000 IU/kg) | 0.002 |
| Canola oil | 0.02 |
| Chemical composition, % of DM | |
| DM, % | 74.9 |
| OM | 90.6 |
| CP | 12.5 |
| NDF | 17.7 |
| ADF | 5.3 |
| Starch | 52.3 |
| NEm4, Mcal/kg |
2.67 |
| NEg4, Mcal/kg | 1.90 |
ADF, acid detergent fiber; CP, crude protein; NDF, neutral detergent fiber
1Composition (DM basis): 31.8% DM, 48.2% NDF, 25.9% ADF, 16.4% starch, and 12.1% CP based on 4 samples composited by period.
2Composition (DM basis): 90.2% DM, 97.0% OM, 14.6% NDF, 3.7% ADF, 55.9% starch and 14.5% CP based on 4 samples composited by period.
3Supplied per kilogram of dietary DM: 15 mg Cu, 65 mg Zn, 28 mg Mn, 0.7 mg I, 0.2 mg Co, 0.3 mg Se, 6,000 IU vitamin A, 600 IU vitamin D, and 47 IU vitamin E.
4NEm and NEg were estimated from NRC (2000).