Table 3.
Dietary compositions and nutrient levels of broilers (as-fed basis).
| Ingredient (%) | (d 1–14) | (d 15–28) | (d 29–42) |
|---|---|---|---|
| Corn | 55.00 | 57.65 | 59.03 |
| Soybean meal | 38.00 | 34.87 | 33.80 |
| Soybean oil | 3.00 | 3.50 | 4.00 |
| Dicalcium phosphate | 1.85 | 1.60 | 1.70 |
| limestone | 1.17 | 1.20 | 1.38 |
| salt | 0.35 | 0.35 | 0.30 |
| Vitamin premixa | 0.03 | 0.03 | 0.02 |
| Choline chloride (50%) | 0.10 | 0.07 | 0.05 |
| Mineral premixb | 0.20 | 0.20 | 0.20 |
| DL-Met | 0.25 | 0.16 | 0.07 |
| HCl-Lys | 0.05 | 0.04 | 0.03 |
| total | 100 | 100 | 100 |
| Calculated nutrition levels | |||
| ME (MJ/Kg) | 12.16 | 12.78 | 12.82 |
| CP (%) | 20.74 | 19.60 | 18.00 |
| Met+Cys (%) | 0.92 | 1.05 | 0.64 |
| Lys (%) | 1.1 | 0.95 | 0.9 |
| Ca (%) | 1.08 | 0.95 | 0.9 |
| P (%) | 0.71 | 0.64 | 0.55 |
aVitamin premix containing the following content, per kilogram of diet: vitamin A, 10,000 IU; vitamin D3(cholecalciferol), 3500 IU; vitamin E (DL-α-tocopheryl acetate), 60 mg; vitamin K (menadione), 3 mg; thiamine, 3 mg; riboflavin, 6 mg; pyridoxine, 5 mg; vitamin B12 (cyanocobalamin), 0.01 mg; niacin, 45 mg; pantothenic acid (D-calcium pantothenate), 11 mg; folic acid, 1 mg; biotin, 0.15 mg; choline chloride, 500 mg; ethoxyquin (antioxidant), 150 mg.
bMineral premix containing the following content, per kilogram of diet: Fe, 60 mg; Mn, 100 mg; Zn, 60 mg; Cu, 10 mg; I, 1 mg; Co, 0.2 mg; Se, 0.15 mg.