Table 2.

Compositions and nutrient levels of the basal diets.

Raw material (kg)	1–21 d	22–42 d	43–64 d	Nutrient levels	1–21 d	22–42 d	43–64 d
Corn	600.58	606.33	616.39	Moisture (%)	13.34	13.12	13.04
46% Soybean	340.61	312.98	294.40	Crude protein (%)	20.50	19.50	18.50
Soybean oil Ⅳ	18.87	39.64	53.33	Crude fat (%)	4.31	6.36	7.73
Calcium hydrogen phosphate	9.69	7.55	5.89	Crude fiber (%)	2.32	2.22	2.16
Limestone	14.71	14.89	14.69	Ca (%)	0.90	0.85	0.80
Salt	2.92	2.94	2.96	P (%)	0.54	0.49	0.40
NaHCO3	1.50	1.50	1.50	Nonphytate phosphorus (%)	0.30	0.26	0.23
60% Choline chloride	1.20	0.90	0.80	Na (%)	0.18	0.18	0.18
Premix	4.00	4.00	4.00	K (%)	0.86	0.81	0.77
70% Lys	0.74	2.08	0.56	Electrolyte balance (Meq/kg)	234	222	210
98% Solid Met	1.55	2.94	1.72	Metabolizable energy (kcal/kg)	2,900	3,050	3,150
98% Thr	0.00	0.58	0.09	Lys (%)	1.17	1.10	1.03
				DLys-P (%)	1.05	1.05	0.92
				D(M + C)-P (%)	0.71	0.82	0.68
				DThr-P (%)	0.67	0.68	0.61
				DArg-P (%)	1.22	1.14	1.08
				DTrp-P (%)	0.21	0.20	0.19