Table 1.
Formula and chemical composition of control diets (as-fed basis)
| Item | Phase 1 (d 0 to 14) | Phase 2 (d 15 to 28) |
|---|---|---|
| Ingredient (g/kg) | ||
| Corn | 380.7 | 465.7 |
| Fish meal | 50 | 30 |
| Dehulled soybean meal | 244.9 | 294.9 |
| Whey powder | 170 | 153.8 |
| Fish meal | 50 | 30 |
| Soy protein concentrate | 50 | - |
| Soybean oil | 33.8 | 26 |
| Monocalcium phosphate | 4 | 3.6 |
| Limestone | 7.7 | 8.3 |
| Salt | 3 | 3 |
| DL-methionine | 1.4 | 0.8 |
| L-lysine | 3.3 | 2.8 |
| L-threonine | 1.4 | 1.3 |
| L-tryptophan | 2.2 | 1.7 |
| Vitamin premix1) | 2.5 | 2.5 |
| Mineral premix2) | 2.5 | 2.5 |
| Choline chloride | 0.5 | 0.5 |
| Phytase | 0.1 | 0.1 |
| Chromic oxide | 2.5 | 2.5 |
| Lactose | 39.5 | - |
| Total | 1,000 | 1,000 |
| Calculated composition (%) | ||
| ME (MJ/kg) | 14.226 | 14.226 |
| CP | 23 | 21 |
| Calcium | 0.8 | 0.7 |
| Available phosphorus | 0.4 | 0.33 |
| SID Lys | 1.35 | 1.23 |
| SID Met | 0.41 | 0.36 |
| SID Met+Cys | 0.74 | 0.68 |
| SID Thr | 0.79 | 0.73 |
| SID Trp | 0.22 | 0.2 |
| Lactose | 15 | 10 |
ME, metabolizable energy; CP, crude protein; SID, standardized ileal digestibility
1)
Supplied per kilogram of diet: 20,000 IU vitamin A, 4,200 IU vitamin D3, 10 IU vitamin E, 5.6 mg vitamin K3, 2.8 mg vitamin B1, 5.5 mg vitamin B2, 4.2 mg vitamin B6, 0.042 mg vitamin B12, 14 mg pantothenic acid, 42 mg niacin, 0.105 mg biotin, 1.05 mg folic acid.
2)
Supplied per kilogram of diet: 50 mg Fe as FeSO4, 0.20 mg Co as CoSO4, 30 mg Cu as CuSO4, 30 mg Mn as MnSO4, 0.35 mg I as Ca(IO3), 0.25 mg Se as Na2SeO3.