Table 1.
The composition and nutrient levels of basal diets.
| Item (%, Unless Otherwise Indicated) | Starter Diet (d 1–21) | Grower Diet (d 22–28) |
|---|---|---|
| Ingredients | ||
| Corn (crude protein, 7.8%) | 51.73 | 57.68 |
| Soybean meal (crude protein, 43.0%) | 40.73 | 35.15 |
| Soybean oil | 3.36 | 3.66 |
| Dicalcium phosphate | 1.92 | 1.33 |
| Limestone | 1.16 | 1.26 |
| Sodium chloride | 0.35 | 0.35 |
| DL-Methionine (98%) | 0.26 | 0.13 |
| Choline chloride (50%) | 0.25 | 0.20 |
| Vitamin premix 1 | 0.04 | 0.04 |
| Trance mineral premix 2 | 0.20 | 0.20 |
| Calculated nutrient levels | ||
| Metabolic energy (Mcal/kg) | 2.92 | 3.00 |
| Crude protein | 21.50 | 19.50 |
| Calcium | 1.00 | 0.90 |
| Available Phosphorus | 0.45 | 0.35 |
| Lysine | 1.17 | 1.04 |
| Methionine | 0.57 | 0.40 |
| Threonine | 0.82 | 0.74 |
1 The vitamin premix supplied the following per kilogram of diet: vitamin D3, 2500 IU; vitamin K3 2.65 mg; vitamin E, 30 IU; vitamin B1, 2 mg; vitamin B2, 6 mg; vitamin B12, 0.025 mg; biotin, 0.0325 mg; folic acid, 1.25 mg; pantothenic acid, 12 mg; nicotinic acid, 50 mg. 2 The trace mineral premix supplied the following per kilogram of diet: copper, 8 mg; iron, 80 mg; zinc, 75 mg; manganese, 100 mg; selenium, 0.15 mg; iodine, 0.35 mg.