Table 1. Diet compositions.
| Diet1 | |||
| Item | LMF | HCS | LCS |
| Ingredient (% dry matter) | |||
| Alfalfa hay | 23.4 | 0.0 | 0.0 |
| Corn silage | 26.7 | 0.0 | 0.0 |
| Chinese wildrye | 3.7 | 0.0 | 0.0 |
| Corn straw | 0.0 | 35.0 | 53.8 |
| Corn | 24.6 | 35.3 | 24.6 |
| Soybean meal | 14.8 | 20.8 | 14.8 |
| Whole cottonseed | 5.1 | 7.2 | 5.1 |
| Dicalcium phosphate | 0.6 | 0.8 | 0.6 |
| Salt | 0.5 | 0.5 | 0.5 |
| Premix2 | 0.6 | 0.6 | 0.6 |
| Concentrate∶Roughage | 46∶54 | 65∶35 | 46∶54 |
| Nutrient composition (%) of dry matter) | |||
| Net Energy (Mcal/kg) | 1.50 | 1.54 | 1.40 |
| Crude protein | 16.8 | 16.9 | 13.9 |
| Neutral detergent fiber | 37.6 | 34.4 | 46.0 |
| Acid detergent fiber | 23.9 | 19.9 | 26.7 |
| Non-fiber carbohydrate3 | 37.0 | 41.3 | 32.6 |
| Ether extract | 3.4 | 3.2 | 2.5 |
| Calcium | 0.5 | 0.5 | 0.4 |
| Phosphorus | 0.4 | 0.4 | 0.4 |
1
LMF, low-concentrate mixed forage diet; HCS, high-concentrate corn straw diet; LCS, low-concentrate corn straw diet.
2
Premix contains: 2,142 mg/kg Cu (as sulfate); 15,428 mg/kg Mn (as sulfate); 15,428 mg/kg Zn (as sulfate); 28 mg/kg Co (as chloride); 231 mg/kg I (as iodate); 57 mg/kg Se (as selenite); 2,285,000 IU/kg vitamin A; 457,000 IU/kg vitamin D; and 11,400 mg/kg vitamin E.
3
Non-fiber carbohydrate = 100−(% Neutral detergent fiber+% Crude protein+% Ether extract+% Ash).