Table 1.

Diet formulation according to the treatments (1–26 d, as-fed basis; % diet).

Ingredients	Starter (0–14 d)	Grower (14–26 d)
Corn	61.10	63.66
Soybean meal—48%	25.85	22.87
Soybean oil	0.43	0.90
Corn DDGS	5.00	5.00
Meat and bone meal	5.00	5.00
L-Threonine	0.14	0.06
Limestone	0.64	0.60
Dicalcium phosphate	0.18	0.03
Salt	0.20	0.21
Vitamin premix1	0.25	0.25
Mineral premix2	0.08	0.08
DL-Methionine	0.31	0.28
L-Lysine HCl	0.30	0.27
Filler (corn)3	0.50	0.50
Titanium dioxide	-	0.30
Calculated nutrient composition
Metabolizable energy (kcal/g)	2.98	3.03
Crude protein (%)	21.19	19.88
Calcium (%)	0.90	0.84
Available phosphorus (%)	0.45	0.42
Dig. arginine (%)	1.32	1.22
Dig. lysine (%)	1.22	1.12
Dig. methionine (%)	0.63	0.59
Dig. TSAA (%)	0.91	0.85
Dig. threonine (%)	0.83	0.73
Dig. tryptophan (%)	0.24	0.22
Dig. valine (%)	1.09	1.02
Analyzed nutrient value
Crude protein (%)	22.14	20.41
Energy (kcal/g)	2.91	2.95
Calcium (%)	0.86	0.83
Phosphorus (%)	0.65	0.62
Arginine (%)	1.31	1.29
Methionine (%)	0.63	0.61
Threonine (%)	0.94	0.92

¹Vitamin premix: Supplemented per kg of diet: thiamin mononitrate, 2.4 mg; nicotinic acid, 44 mg; riboflavin, 4.4 mg; D-Ca pantothenate, 12 mg; vitamin B12 (cobalamin), 12.0 g; pyridoxine HCl, 4.7 mg; D-biotin, 0.11 mg; folic acid, 5.5 mg; menadione sodium bisulfite complex, 3.34 mg; choline chloride, 220 mg; cholecalciferol, 27.5 g; transretinyl acetate, 1,892 g; α tocopheryl acetate, 11 mg; ethoxyquin, 125 mg.

²Mineral premix: Supplemented as per kg of diet: manganese (MnSO₄·H₂O), 60 mg; iron (FeSO₄·7H₂O), 30 mg; zinc (ZnO), 50 mg; copper (CuSO₄·5H₂O), 5 mg; iodine (ethylene diaminedihydroiodide), 0.15 mg; selenium (NaSeO₃), 0.3 mg.

³Corn was replaced by AZOMITE at 0.125, 0.25, or 0.5% according to the treatments.