Table 1.
Ingredients and chemical composition of used diets
| Item | 1 to 14 days of age | 15 to 28 days of age | 29 to 42 days of age | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Experimental group | Control | AO2 | AO4 | Control | AO2 | AO4 | Control | AO2 | AO4 |
| Ingredients (g/kg as-fed) | |||||||||
| Corn | 610 | 609 | 617 | 662 | 661 | 660 | 710 | 709 | 708 |
| Soybean meal | 320 | 320 | 319 | 287 | 287 | 286 | 236 | 236 | 235 |
| Fish meal | 29.0 | 28.7 | 28.6 | 10.0 | 9.8 | 9.2 | 10.0 | 9.7 | 9.3 |
| Na chloride | 2.5 | 2.5 | 2.5 | 3.0 | 3.0 | 3.0 | 3.2 | 3.2 | 3.2 |
| Mineral oysters | 15.0 | 15.0 | 15.0 | 14.2 | 14.2 | 14.2 | 16.5 | 16.5 | 16.5 |
| Ca(22%) P(18%) | 13.0 | 13.0 | 13.0 | 13.2 | 13.2 | 13.2 | 13.5 | 13.5 | 13.5 |
| Vitamin mineral premix1 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
| Methionine | 3.4 | 3.4 | 3.4 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 |
| Lysine | 2.1 | 2.1 | 2.1 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 |
| Aspergillus meal | 0 | 2 | 4 | 0 | 2 | 4 | 0 | 2 | 4 |
| Calculated chemical composition (g/kg unless stated otherwise) | |||||||||
| Metabolizable energy (MJ/kg) | 12.2 | 12.2 | 12.2 | 12.4 | 12.4 | 12.4 | 12.5 | 12.5 | 12.5 |
| Crude protein | 223 | 223 | 223 | 200 | 200 | 200 | 180 | 180 | 180 |
| Ca (%) | 11.1 | 11.1 | 11.1 | 9.4 | 9.4 | 9.4 | 10.0 | 10.0 | 10.0 |
| Available P | 5.6 | 5.6 | 5.6 | 5.0 | 5.0 | 5.0 | 4.8 | 4.8 | 4.8 |
| Lysine (%) | 15.0 | 15.0 | 15.0 | 13.0 | 13.0 | 13.0 | 11.0 | 11.0 | 11.0 |
| Methionine (%) | 7.4 | 7.4 | 7.4 | 6.9 | 6.9 | 6.9 | 6.5 | 6.5 | 6.5 |
1One kilogram of premix contained: calcium pantothenate, 4000 mg; niacin, 15,000 mg; vitamin B6, 13,000 mg; Cu, 3000 mg; Zn, 15,000 mg; Mn, 20,000 mg; Fe, 10,000 mg; K, 300 mg; vitamin A, 5 × 106 IU; vitamin D3, 5 × 105 IU; vitamin E, 3000 mg; vitamin K3, 1.5 mg/g; vitamin B2, 1000 mg