Table 1.
Composition and nutrient levels of basal diets (g/kg, as-fed).
| Item | Days 1–14 | Days 15–28 |
|---|---|---|
| Composition | ||
| Corn | 570 | 643 |
| Soybean meal | 60 | 100 |
| Full fat soybean | 50 | 50 |
| Soy protein concentration | 90 | 60 |
| Fish meal | 40 | 30 |
| Spray-dried plasma protein | 30 | - |
| Whey powder | 100 | 60 |
| Soybean oil | 29 | 24.1 |
| Dicalcium phosphate | 5.5 | 5.5 |
| Limestone | 10.4 | 9.5 |
| Sodium chloride | 3.0 | 3.0 |
| L-Lysine-HCl | 2.6 | 4.6 |
| DL-Methionine | 0.8 | 0.8 |
| L-Threonine | 0.5 | 1.5 |
| L-Tryptophan | 0.2 | 0.5 |
| Zinc oxide | 3.0 | - |
| Chromic oxide | - | 2.5 |
| Premix 1 | 5.0 | 5.0 |
| Nutrient levels 2 | ||
| Crude protein | 206 | 188 |
| Calcium | 8.1 | 7.2 |
| Total phosphorus | 5.9 | 5.3 |
| Digestible lysine | 13.5 | 12.4 |
| Digestible methionine | 4.0 | 3.6 |
| Digestible threonine | 8.1 | 7.4 |
| Digestible tryptophan | 2.3 | 2.2 |
| Digestible energy (Mcal/kg) | 3.54 | 3.49 |
1 Premix provided the following per kilogram of feed: vitamin A, 12,000 IU; vitamin D, 2500 IU; vitamin E, 30 IU; vitamin B12, 12 μg; vitamin K, 3 mg; d-pantothenic acid, 15 mg; nicotinic acid, 40 mg; choline chloride, 400 mg; Mn, 40 mg; Zn, 100 mg; Fe, 90 mg; Cu, 8.8 mg; I, 0.35 mg; Se, 0.3 mg. 2 Crude protein, calcium, and total phosphorus were analyzed values, and digestible amino acids and energy were calculated using values obtained from the NRC (2012).