Table 1.
Composition and nutrient levels of basal diets (%, as-fed basis).
| Item | days 0–21 | days 21–42 |
|---|---|---|
| Ingredients | ||
| Corn | 33.16 | 37.45 |
| Wheat | 33.00 | 31.91 |
| Soybean meal, 43% | 23.05 | 19.22 |
| Fish meal, 64.6% | 3.62 | 3.74 |
| Soybean oil | 3.60 | 4.50 |
| Dicalcium phosphate | 1.17 | 1.09 |
| Limestone | 1.24 | 1.05 |
| Salt | 0.30 | 0.30 |
| L-lysine HCl, 78% | 0.12 | 0.11 |
| DL-methionine, 98% | 0.16 | 0.05 |
| L-threonine, 98% | 0.08 | 0.08 |
| Vitamin-mineral premixa | 0.50 | 0.50 |
| Total | 100.00 | 100.00 |
| Nutrient contentb | ||
| Metabolizable energy, kcal/kg | 3,050 | 3,150 |
| Crude protein | 20.53 | 18.95 |
| Calcium | 1.00 | 0.90 |
| Total phosphorous | 0.68 | 0.65 |
| Lysine | 1.10 | 1.00 |
| Methionine | 0.50 | 0.38 |
a
Vitamin A, 11,000 IU; vitamin D, 3,025 IU; vitamin E, 22 mg; vitamin K3, 2.2 mg; thiamine, 1.65 mg; riboflavin, 6.6 mg; pyridoxine, 3.3 mg; cobalamin, 17.6 μg; nicotinic acid, 22 mg; pantothenic acid, 13.2 mg; folic acid, 0.33 mg; biotin, 88 μg; choline chloride, 500 mg; iron, 48 mg; zinc, 96.6 mg; manganese, 101.76 mg; copper, 10 mg; selenium, 0.05 mg; iodine, 0.96 mg; and cobalt, 0.3 mg.
b
Values are calculated according to NRC.