Table 1.
Composition and nutrient levels of basal diet.
| Items | HP | MP | LP |
|---|---|---|---|
| Ingredients (% of DM) | |||
| Millet straw | 51.86 | 51.95 | 51.96 |
| Alfalfa | 15.87 | 15.88 | 15.84 |
| Corn | 15.65 | 17.67 | 19.79 |
| Soybean meal | 8.24 | 7.91 | 6.97 |
| Corn gluten meal | 3.27 | 1.63 | 0.33 |
| Flax cake | 1.92 | 1.92 | 1.92 |
| Corn germ meal | 0.64 | 0.48 | 0.49 |
| Bran | 0.48 | 0.47 | 0.63 |
| NaCl | 0.44 | 0.44 | 0.44 |
| CaCO3 | 0.38 | 0.38 | 0.38 |
| CaHPO4 | 0.76 | 0.76 | 0.76 |
| Premix 1 | 0.50 | 0.50 | 0.50 |
| Total | 100.00 | 100.00 | 100.00 |
| Chemical composition (% of DM) | |||
| DE (MJ/kg) 2 | 12.39 | 12.40 | 12.41 |
| CP | 15.30 | 14.20 | 13.10 |
| EE | 2.96 | 2.94 | 2.95 |
| NDF | 50.78 | 50.75 | 50.87 |
| ADF | 30.14 | 30.10 | 30.06 |
| Ca | 1.18 | 1.20 | 1.19 |
| P | 0.37 | 0.36 | 0.36 |
HP, high crude protein; MP, medium crude protein; LP, low crude protein; DE, digestible energy; DM, dry matter; CP, crude protein; EE, ether extract; NDF, neutral detergent fiber; ADF, acid detergent fiber; Ca, Calcium; P, Phosphorus. 1 Provided per kg of premix: vitamin A 1,200,000 IU, vitamin D 250,000 IU, vitamin E 3000 IU, Fe 4.0 g, Cu 1.6 g, Zn 12 g, Mn 12 g, I 72 mg, Se 60 mg, Co 100 mg. 2 DE was a calculated value according to the Chinese Feed Ingredients and Nutritional Value Table (30th edition).