Table 1.

Ingredients and nutrient compositions of the experimental diets used in the animal trial (as-fed basis)¹

Items	30–60 kg	60–90 kg
Corn	74.68	76.82
Soybean meal	22.00	20.00
Dicalcium phosphate	0.90	0.80
Limestone	0.75	0.75
Sodium chloride	0.35	0.35
Premix2	0.50	0.50
Lys-HCl	0.36	0.36
DL-Met	0.13	0.11
L-Thr	0.17	0.16
L-Trp	0.05	0.05
L-Val	0.11	0.10
Total	100.00	100.00
Calculated values3
ME, MJ/kg	13.64	13.67
NE, MJ/kg	10.27	10.33
CP	16.65	15.88
SID Lys	1.00	0.95
SID AA/SID Lys
Met	0.36	0.35
Thr	0.65	0.65
Trp	0.20	0.20
Val	0.70	0.70
Ile	0.55	0.55
Met + Cys	0.60	0.60

¹All the dietary nutrient concentrations were calculated based on the nutrient compositions of ingredients published in Nutrient Requirements of Swine in China.

²Premix provided the following quantities per kilogram of diets: vitamin A as retinyl acetate, 8,250 IU; vitamin D₃ as cholecalciferol, 825 IU; vitamin E as DL-alpha-tocopheryl acetate, 40 IU; vitamin K₃ as menadione nicotinamide bisulfite, 4 mg; vitamin B₁₂, 25 μg; riboflavin, 5 mg; pantothenic acid as DL-calcium pantothenate, 15 mg; niacin, 35 mg; choline chloride, 600 mg; folacin, 2 mg; thiamin as thiamin mononitrate, 1 mg; pyridoxine as pyridoxine hydrochloride, 2 mg; biotin, 4 mg; Mn as MnO, 25 mg; Fe as FeSO₄·H₂O, 80 mg; Zn as ZnSO₄, 100 mg; Cu as CuSO₄·5H₂O, 50 mg; I as KI, 0.5 mg; Se as Na₂SeO₃, 0.15 mg.

³CP, crude protein; NE, net energy; ME, metabolic energy; SID, standardized ileal digestible.