Table 1.
Ingredients and nutritional composition of the diets.
| Concentrate: Forage ratio 60:40 | |||
|---|---|---|---|
| Ingredient (%) | Nutrient levelsb | ||
| Leymus chinensis | 27.00 | Net energy/(MJ.kg−1) | 6.71 |
| Alfalfa silage | 13.00 | Crude protein/% | 16.92 |
| Corn | 23.24 | Neutral detergent fiber/% | 31.45 |
| Wheat bran | 20.77 | Acid detergent fiber/% | 17.56 |
| Soybean meal | 13.67 | Calcium/% | 0.89 |
| Limestone | 1.42 | Phosphorus/% | 0.46 |
| NaCl | 0.30 | ||
| Premixa | 0.60 | ||
| Total | 100.00 | ||
a
Provided per kg of diet: VA 6,000 IU/kg, VD 2,500 IU/kg, VE 80 mg/kg, Cu 6.25 mg/kg, Fe 62.5 mg/kg, Zn 62.5 mg/kg, Mn 50 mg/kg, I 0.125 mg/kg, Co 0.125 mg/kg.
b
Nutrient levels were according to National Research Council (NRC, 2001).