Table 1.
Ingredients and chemical composition of the diet (DM basis, %).
| Ingredient composition | Content | Chemical composition | Content |
|---|---|---|---|
| Alfalfa | 24.00 | DM, % as fresh fed | 46.77 |
| Oat | 24.00 | CP | 16.16 |
| Corn silage | 12.00 | NDF | 36.14 |
| Corn | 19.40 | NFC2 | 38.68 |
| Soybean meal | 13.50 | Ash | 5.97 |
| DDGS | 3.80 | Ca | 1.14 |
| Limstone | 0.80 | P | 0.52 |
| Ca (HCO3)2 | 1.10 | Crude fat | 3.05 |
| NaCl | 0.40 | Starch | 17.96 |
| Premix1 | 1.00 | NEL3, Mcal/kg | 1.57 |
| Total | 100 | NFC/NDF | 1.07 |
CP = crude protein; NDF = neutral detergent fiber; NFC = non-fiber carbohydrate.
1
Premix contained the following ingredients per kilogram of diet: vitamin A, 22.5 kIU; vitamin D3, 5.0 kIU; vitamin E, 37.5 IU; vitamin K3, 5.0 mg; Mn, 63.5 mg; Zn, 111.9 mg; Cu, 25.6 mg; and Fe, 159.3 mg.
2
NFC = 100 − [NDF (%) + CP (%) + ether extract (%) + ash (%)].
3
Calculated based on Ministry of China recommendations (MOA, 2004).