Table 1.
Ingredients and composition of the basal experimental diets.
| Ingredients, % | Starter diet | Finisher diet |
|---|---|---|
| Corn | 51.50 | 56.60 |
| Soybean meal | 30.58 | 26.10 |
| Corn DDGS | 5.00 | 5.00 |
| Corn gluten meal | 4.00 | 4.00 |
| Corn oil1 | 2.70 | 4.70 |
| Wheat flour | 2.00 | 0.00 |
| Dicalcium phosphate | 1.64 | 1.20 |
| Limestone | 1.27 | 1.20 |
| Salt | 0.35 | 0.35 |
| Trace mineral premix2 | 0.20 | 0.2 |
| Vitamin premix3 | 0.03 | 0.02 |
| Choline chloride (50%) | 0.20 | 0.20 |
| DL-Methionine | 0.24 | 0.20 |
| L-Lysine sulfate | 0.26 | 0.20 |
| Antioxidant | 0.02 | 0.02 |
| Phytase | 0.01 | 0.01 |
| Nutrient composition, %4 | ||
| ME (kcal/kg) | 2950 | 3146 |
| CP, % | 22.50 | 20.50 |
| Lysine, % | 1.30 | 1.12 |
| Methionine, % | 0.59 | 0.52 |
| Methionine+Cysteine, % | 0.94 | 0.85 |
| Calcium, % | 1.00 | 0.80 |
| NPP, % | 0.45 | 0.32 |
The same percentage of corn oil was used in different treatment groups. The treatment groups were as follows: the ratio of nonoxidized corn oil to naturally oxidized oil was 0:100, 25:75, 50:50, 75:25, 100:0, respectively.
The trace mineral premix provided the following per kg of diets: Cu,16 mg (as CuSO4•5H2O); Zn, 110 mg (as ZnSO4); Fe, 80 mg (as FeSO4•H2O); Mn, 120 mg (as MnO); Se, 0.3 mg (as Na2SeO3); I, 1.5 mg (as KI); Co, 0.5 mg.
The vitamin premix provided the following per kg of diets: vitamin A, 10,000 IU; vitamin D3, 2,400 IU; vitamin E, 20 mg; vitamin K3, 2 mg; vitamin B1, 2 mg; vitamin B2, 6.4 mg; VB6, 3 mg;VB12, 0.02 mg; biotin, 0.1 mg; folic acid, 1 mg; pantothenic acid,10 mg; nicotinamide, 30 mg.
All the nutrient levels are calculated values.