Table 1.
Composition and nutrient levels of basal diets (%, as fed basis).
| Items | 1 to 21 d of age | 22 to 42 d of age | Corn | Wheat | Corn | Wheat | ||
|---|---|---|---|---|---|---|---|---|
| Ingredients | ||||||||
| Corn | 61.15 | – | 67.99 | – | ||||
| Wheat | – | 62.16 | – | 67.28 | ||||
| Soybean meal, 43% crude protein | 28.00 | 25.80 | 22.00 | 19.47 | ||||
| Fish meal, 64.6% crude protein | 3.71 | 3.46 | 2.60 | 4.62 | ||||
| Soybean oil | 3.00 | 4.96 | 3.60 | 5.56 | ||||
| Dicalcium phosphate | 1.28 | 1.02 | 1.38 | 0.83 | ||||
| Limestone | 1.26 | 1.40 | 1.10 | 1.16 | ||||
| Salt | 0.30 | 0.30 | 0.30 | 0.30 | ||||
| L-lysine HCl, 78% | – | – | 0.12 | – | ||||
| DL-Methionine, 98% | 0.15 | 0.14 | 0.07 | 0.02 | ||||
| L-Threonine, 98% | 0.04 | 0.01 | 0.09 | 0.01 | ||||
| Chromic oxide | 0.25 | 0.25 | 0.25 | 0.25 | ||||
| Vitamin-mineral premix1 | 0.50 | 0.50 | 0.50 | 0.50 | ||||
| Total | 100.00 | 100.00 | 100.00 | 100.00 | ||||
| Calculated nutrient content2 | ||||||||
| Metabolizable energy, kcal/kg | 3,052 | 3,050 | 3,157 | 3,150 | ||||
| Crude protein | 20.08 | 20.95 | 19.37 | 20.36 | ||||
| Calcium | 1.00 | 1.00 | 0.90 | 0.90 | ||||
| Available phosphorous | 0.45 | 0.45 | 0.35 | 0.35 | ||||
| Digestible lysine | 0.86 | 0.86 | 0.73 | 0.73 | ||||
| Digestible methionine | 0.30 | 0.30 | 0.28 | 0.28 | ||||
| Digestible threonine | 0.63 | 0.63 | 0.56 | 0.56 | ||||
1
Vitamin A, 11,000IU; vitamin D, 3,025IU; vitamin E, 22mg; vitamin K3, 2.2mg; thiamine, 1.65mg; riboflavin, 6.6mg; pyridoxine, 3.3mg; cobalamin, 17.6μg; nicotinic acid, 22mg; pantothenic acid, 13.2mg; folic acid, 0.33mg; biotin, 88μg; choline chloride, 500mg; iron, 48mg; zinc, 96.6mg; manganese, 101.76mg; copper, 10mg; selenium, 0.05mg; iodine, 0.96mg; and cobalt, 0.3mg.
2
Values were calculated according to the National Research Council (1994).