Table 1.
Ingredients and chemical composition of diet in the experimental *.
| Items | Diet * | |
|---|---|---|
| Concentrate | Forage | |
| Ingredient, % of DM | ||
| Corn | 51.2 | |
| Wheat bran | 19.6 | |
| Soybean meal | 15.1 | |
| Urea | 2.01 | |
| Calcium carbonate | 0.42 | |
| Vegetable oil | 5.16 | |
| Salt | 1.51 | |
| Mineral and vitamin mix | 5.02 | |
| Rice straw | 100.0 | |
| Chemical composition, % of DM | ||
| Digestible energy (Mcal/kg) | 3.61 | 1.23 |
| CP | 22.4 | 5.60 |
| EE | 2.78 | 0.80 |
| Ash | 10.8 | 10.8 |
| NDF | 17.7 | 65.7 |
| ADF | 9.94 | 48.5 |
* Diet included both concentrate and forage; Mineral and vitamin mix contained 8.5 g/kg Mg, 4 g/kg Zn, 510 mg/kg Fe, 750 mg/kg Cu, 5.1 g/kg Mn, 11 mg/kg Co, 30 mg/kg I, 5 mg/kg Se, 104,400 IU/kg vitamin A, 17,500 IU/kg vitamin D, and 2,200 IU/kg vitamin E; DM: Dry matter; CP: crude protein; EE: ether extract; Ash: ash in animal feed; NDF: neutral detergent fiber; ADF: acid detergent fiber.