Table 1.
Composition of basal diets.
| Item | Day 1–14 | Day 15–21 |
|---|---|---|
| Ingredient, g kg−1, as-fed basis | ||
| Corn, yellow | 554.2 | 607.3 |
| Soybean meal | 355.2 | 315.3 |
| Fish meal | 39.9 | 36.3 |
| Vegetable oil | 35.2 | 30.2 |
| Limestone | 15.2 | 12.7 |
| Salt | 3.0 | 3.0 |
| Monocalcium phosphate | 9.2 | 7.8 |
| Mineral premix1 | 2.0 | 2.0 |
| Vitamin premix2 | 2.0 | 2.0 |
| DL-methionine | 2.0 | 2.0 |
| L-lysine | 1.0 | 0.6 |
| Choline chloride | 0.5 | 0.5 |
| Calculated value, g kg−1 | ||
| Dry matter | 88.9 | 88.7 |
| Crude protein | 221.6 | 206.3 |
| Analyzed calcium | 10.2 | 8.7 |
| Analyzed total phosphorus | 6.9 | 6.3 |
| Lysine | 11.2 | 9.5 |
| Methionine + cystine | 8.5 | 7.6 |
| ME, kcal/kg | 3,081.1 | 3,057.2 |
1
Supplied per kilogram of diet: 32 mg of Mn (MnSO4·H2O), 16 mg of Fe (FeSO4·7H2O), 24 mg of Zn (ZnO), 2 mg of Cu (CuSO4·5H2O), 800 μg of I (KI), 200 μg of Co (CoSO4), and 60 μg of Se.
2
Supplied per kilogram of diet: 1.8 mg of all-trans-retinyl acetate, 0.02 mg of cholecalciferol, 8.3 mg of alpha-tocopheryl acetate, 2.2 mg of menadione, 2 mg of pyridoxine HCl, 8 mg of cyanocobalamin, 10 mg of nicotinamide, 0.3 mg of folic acid, 20 mg of D-biotin, and 160 mg of choline chloride.