Table 1.
Nutrient composition of experimental diets.1
| Item | Start phase (day 1–21) | Finisher phase (day 21–42) |
|---|---|---|
| Soybean meal | 30.44 | 24.05 |
| Corn | 58.17 | 64.26 |
| Corn gluten meal | 2.0 | 2.5 |
| Fish meal | 2.0 | 2.0 |
| Soybean oil | 3.38 | 3.6 |
| Dicalcium phosphate | 1.50 | 1.04 |
| Limestone | 1.30 | 1.35 |
| Salt | 0.30 | 0.30 |
| L-Lysine, 78% | 0.01 | 0.08 |
| Methionine, 98% | 0.14 | 0.04 |
| Threonine, 98% | 0.01 | 0.03 |
| Chromic oxide | 0.25 | 0.25 |
| Premix2 | 0.50 | 0.50 |
| Total | 100 | 100 |
| Analyzed value | ||
| Dry matter | 88.70 | 87.91 |
| Crude protein | 21.32 | 19.41 |
| Calcium | 1.0 | 0.90 |
| Available phosphorus | 0.45 | 0.35 |
| Calculated value3 | ||
| Metabolizable energy, MJ/kg | 12.79 | 13.18 |
| Total phosphorus | 0.70 | 0.59 |
| Digestible lysine | 1.1 | 1.0 |
| Digestible methionine | 0.50 | 0.48 |
| Digestible cysteine | 0.32 | 0.28 |
| Digestible threonine | 0.83 | 0.73 |
| Digestible methionine and cysteine | 0.82 | 0.76 |
1
Chestnut wood extract (1,000 mg/kg) and antibiotic (chlortetracycline, 75 mg/kg) were mixed with premix and then mixed thoroughly with each basal diet.
2
The premix provided the following per kilogram of diet: zinc, 60 mg; iron, 100 mg; manganese, 80 mg; copper, 10 mg; iodine, 0.35 mg; selenium, 0.3 mg; vitamin A, 10,000 IU; vitamin D3, 2,850 IU; vitamin E, 30 IU; vitamin K3, 2 mg; vitamin B12, 1.2 mg; riboflavin, 6 mg; nicotinic acid, 40 mg; pantothenic acid, 12 mg; pyridoxine, 3 mg; biotin, 0.2 mg; and choline chloride, 800 mg.
3
These values were calculated from data provided by NRC (1994).