Table 1.
The composition of experimental diets (% as fed).
| Item | Starter, d 0 to 12 |
Grower, d 13 to 24 |
Finisher, d 25 to 35 |
|||
|---|---|---|---|---|---|---|
| Wheat | Maize | Wheat | Maize | Wheat | Maize | |
| Ingredient | ||||||
| Wheat | 64.1 | – | 69.5 | – | 71.6 | – |
| Maize | – | 60.6 | – | 66.3 | – | 67.5 |
| Soybean meal, 47% | 29.0 | 33.4 | 23.4 | 27.5 | 19.9 | 25.0 |
| Canola oil | 2.17 | 1.15 | 2.87 | 1.72 | 4.31 | 3.19 |
| Limestone | 1.17 | 1.13 | 1.12 | 1.08 | 1.06 | 1.02 |
| Dicalcium Phosphate | 1.63 | 1.74 | 1.53 | 1.65 | 1.40 | 1.52 |
| Salt | 0.20 | 0.21 | 0.22 | 0.23 | 0.20 | 0.17 |
| Sodium bicarbonate | 0.22 | 0.26 | 0.11 | 0.16 | 0.18 | 0.31 |
| TiO2 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 |
| Vitamin-mineral premix1 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 |
| Choline chloride, 70% | 0.07 | 0.13 | 0.07 | 0.13 | 0.06 | 0.11 |
| L-lysine HCl | 0.31 | 0.28 | 0.24 | 0.22 | 0.26 | 0.22 |
| DL-methionine | 0.31 | 0.34 | 0.24 | 0.28 | 0.22 | 0.25 |
| L-threonine | 0.13 | 0.10 | 0.10 | 0.08 | 0.08 | 0.06 |
| Calculated value | ||||||
| ME, kcal/kg | 2,950 | 2,950 | 3,050 | 3,050 | 3,150 | 3,150 |
| Crude protein | 23.0 | 22.0 | 20.8 | 19.5 | 19.5 | 18.4 |
| Calcium | 0.90 | 0.90 | 0.85 | 0.85 | 0.79 | 0.79 |
| Available P | 0.45 | 0.45 | 0.43 | 0.43 | 0.40 | 0.40 |
| Digestible Lys | 1.24 | 1.24 | 1.05 | 1.05 | 0.98 | 0.98 |
| Digestible Met | 0.58 | 0.63 | 0.49 | 0.55 | 0.45 | 0.51 |
| Digestible Met + Cys | 0.90 | 0.90 | 0.80 | 0.80 | 0.75 | 0.75 |
| Digestible Thr | 0.80 | 0.80 | 0.70 | 0.70 | 0.63 | 0.64 |
| Digestible Trp | 0.24 | 0.21 | 0.22 | 0.18 | 0.20 | 0.17 |
| DEB, meq/kg | 247.9 | 243.8 | 213.7 | 206.5 | 203.9 | 213.7 |
1
Vitamin-mineral concentrate supplied per kilogram of diet: retinol 12,000 IU; cholecalciferol, 5,000 IU; tocopherol acetate, 75 mg; menadione, 3 mg; thiamine, 3 mg; riboflavin, 8 mg; niacin, 55 mg; pantothenate, 13 mg; pyridoxine, 5 mg; folate, 2 mg; cyanocobalamin, 16 μg; biotin, 200 μg; cereal-based carrier, 277 mg; mineral oil, 6.25 mg; Cu (sulphate), 16 mg; Fe (sulphate), 40 mg; I (iodide), 1.25 mg; Se (selenate), 0.3 mg; Mn (sulphate and oxide), 120 mg; Zn (sulphate and oxide), 100 mg.