Table 1.
Composition of the experimental diets.
| Item | Starter | Grower | Finisher |
|---|---|---|---|
| Ground corn | 63.81 | 65.31 | 67.41 |
| Soybean meal | 29.40 | 27.00 | 24.70 |
| Vegetable oil | 2.10 | 3.30 | 3.80 |
| Calcium ortophosphate | 1.70 | 1.65 | 1.52 |
| Calcium carbonate | 1.60 | 1.50 | 1.43 |
| Salt | 0.32 | 0.30 | 0.28 |
| DL-Methionine | 0.24 | 0.21 | 0.18 |
| L-Lysine·HCl | 0.26 | 0.21 | 0.19 |
| L-Threonine | 0.08 | 0.05 | 0.04 |
| Sodium bicarbonate | 0.20 | 0.20 | 0.20 |
| Vitamins and minerals 1 | 0.10 | 0.10 | 0.10 |
| Choline chloride | 0.09 | 0.07 | 0.05 |
| Calculated nutrient content | |||
| ME, kcal/kg | 3000 | 3100 | 3200 |
| Digestible Lys, % | 1.10 | 1.00 | 0.90 |
| Digestible Met, % | 0.52 | 0.47 | 0.43 |
| Digestible Thr, % | 0.71 | 0.65 | 0.60 |
| Calcium, % | 1.00 | 0.90 | 0.80 |
| Available phosphorus, % | 0.50 | 0.45 | 0.40 |
1 Each kg provided: 6500 IU Vit A; 2000 IU Vit D3; 15 IU Vit E; 1.5 mg Vit K; 1.5 mg thiamine; 5 mg riboflavin; 35 mg niacin; 3.5 mg pyridoxine; 10 mg pantothenic acid; 1500 mg choline; 0.6 mg folic acid; 0.15 mg biotin; 0.15 mg Vit B12; 100.0 mg Mn; 100 mg Zn; 50 mg Fe; 10 mg Cu; 1.0 mg I.