Table 1.

Ingredient composition and nutrient content of basal diet (% as fed)¹,²

Variable	%
Ingredient (%)
Corn	58.52
Dehulled soybean meal3	16.50
Fish meal	4.00
Extruded soybean	10.00
Whey	4.00
Wheat bran	1.50
Soybean oil	1.50
Dicalcium phosphate	1.60
Limestone	0.60
DL-methionine (99%)	0.04
L-Lysine·HCl (78%)	0.34
Sodium chloride	0.35
Vitamin-mineral premix4	1.00
Mold inhibitor	0.05
Nutrient content5
Metabolizable energy (MJ/kg)	14.08
Crude protein	19.21
Crude fiber	2.88
Ash	6.14
Calcium	0.82
Total phosphorus	0.65
Lysine	1.32

¹Isomaltooligosaccharides were simply added to the control diet at concentrations of 0.2%, 0.4%, 0.6%, and 0.8% at the expense of corn.

²2,000 ppm zinc oxide was added to the diets from day 0 to 14.

³Crude protein concentration of dehulled soybean meal is 47.60%.

⁴Provided per kg diet: vitamin A, 9,000 IU; vitamin D₃, 3,000 IU; vitamin E, 20 IU; vitamin K₃, 3.0 mg; thiamine, 1.5 mg; riboflavin, 4.0 mg; pyridoxine, 3.0 mg; cobalamin, 0.2 mg; biotin, 0.1 mg; pantothenic acid, 30 mg; nicotinic acid, 15 mg; folic acid, 0.75 mg; iron (from FeSO₄•H₂O), 75 mg; copper (from CuSO₄), 150 mg; zinc (from ZnSO₄), 75 mg; manganese (from MnSO₄), 60 mg; iodine (from KI), 0.35 mg; selenium (from Na₂SeO₃), 0.3 mg; roxarsone, 25 mg; olaquindox, 50 mg.

⁵All nutrient levels except metabolizable energy were chemically analyzed and the results are the means of duplicate determinations.