Table 4.
Ingredients and nutrient compositions of the dietary treatments.
| Item | Dietary Treatments1 | |||
|---|---|---|---|---|
| WCWH0 | WCWH33 | WCWH67 | WCWH100 | |
| Ingredient, % (DM basis) | ||||
| corn grain | 22.3 | 24.1 | 25.9 | 27.6 |
| wheat grain | 26.5 | 23.8 | 21.1 | 18.5 |
| soybean meal | 3.45 | 2.31 | 1.14 | 0.00 |
| rapeseed meal | 0.70 | 1.54 | 2.39 | 3.23 |
| wheat bran | 0.00 | 1.14 | 2.32 | 3.47 |
| NaHCO3 | 0.55 | 0.55 | 0.55 | 0.55 |
| NaCl | 0.55 | 0.55 | 0.55 | 0.55 |
| limestone | 0.44 | 0.48 | 0.51 | 0.55 |
| mineral-vitamin premix2 | 0.55 | 0.55 | 0.55 | 0.55 |
| WCWH | 0.00 | 14.9 | 30.2 | 45.0 |
| CWR | 45.0 | 30.2 | 14.9 | 0.00 |
| Chemical composition3, % (DM basis) | ||||
| OM | 94.0 | 92.8 | 91.8 | 91.1 |
| CP | 12.1 | 12.2 | 12.2 | 12.1 |
| EE | 1.02 | 1.02 | 1.02 | 1.02 |
| NDF | 31.9 | 29.9 | 27.9 | 25.9 |
| ADF | 17.5 | 16.6 | 15.7 | 14.9 |
1WCWH0 = 0% of Leymus chinensis was replaced by whole-crop wheat hay; WCWH33 = 33% of Leymus chinensis was replaced by whole-crop wheat hay; WCWH67 = 67% of Leymus chinensis was replaced by whole-crop wheat hay; WCWH100 = 100% of Leymus chinensis was replaced by whole-crop wheat hay.
2Every kilogram of mineral–vitamin premix contained the following: 3500 IU Vitamin A, 3000 IU Vitamin D3, 45 IU Vitamin E, 63 mg Zn, 60 mg Fe, 98.6 mg Mn, 20 mg Cu, 1.1 mg I, 0.50 mg Se, and 0.45 mg Co.
3OM = organic matter; CP = crude protein; NDF = neutral detergent fibre; ADF = acid detergent fibre.