Table 1.
Chemical composition and nutrient levels of diets
| Ingredient | Percentage (%) of ingredients (dry matter) | |
|---|---|---|
| LG diet | HG diet | |
| Chinese wildrye hay | 48.00 | 32.00 |
| Alfalfa hay | 12.00 | 8.00 |
| Corn | 28.78 | 43.17 |
| Soybean meal | 8.45 | 12.68 |
| limestone | 0.77 | 1.25 |
| Calcium phosphate dibasic | 1.10 | 1.65 |
| Salt | 0.40 | 0.50 |
| Premix a | 0.50 | 0.75 |
| Forage: Concentrate | 6:4 | 4:6 |
| Nutrient levels, % of dry matter | ||
| Dry mater, % | 88.90 | 88.60 |
| Net energy, MJ/kg | 5.40 | 5.89 |
| CP, % | 12.24 | 13.45 |
| NDF, % | 36.55 | 27.69 |
| ADF, % | 24.04 | 17.54 |
aPremix provided: 3000, 1250, and 40 IU kg−1 of diet of vitamin A, D and E, and 6.25, 62.5, 62.5, 50, 0.25, 0.125, 0.125 mg kg−1 of diet of Cu, Fe, Zn, Mn, I, Se, Co, respectively. CP: crude protein; NDF: neutral detergent fibre; ADF: acid detergent fibre.