Table 1.

Composition and nutrient levels of basal diets (air-dry basis).

Ingredients (%)	Content		Nutrient compositions	Nutrient levels
	Early stage (1 to 30 days)	Later stage (31 to 60 days)		Early stage (1 to 30 days)	Later stage (31 to 60 days)
Corn	46.0	45.1	Metabolizable energy (MJ/kg)	12.55	13.39
Wheat	10.0	15.0	Crude protein (%)	21.00	19.0
Soybean meal (cp 43%)	32.5	25.1	Calcium (%)	0.90	0.85
Corn protein meal (cp 60%)	3.0	4.0	Available phosphorus (%)	0.45	0.42
Limestone	1.16	1.15	Lysine (%)	1.16	1.02
Dicalcium phosphate	1.67	1.55	Methionine (%)	0.5	0.46
Lard	3.85	6.25
Sodium chloride	0.3	0.30
L-Lysine HCl (98.5%)	0.36	0.40
DL-Methionine (98%)	0.16	0.15
Premix	1.00	1.0

The premix provided the following per kg of diets: VA 7,800 IU, VD₃ 1,600 IU, VB₁ 4.5 mg, VB₂ 6.5 mg, VB₆ 4.5 mg, VE 18 IU, VK₃ 0.6 mg, VB₁₂ 12 μg, nicotinic acid 38 mg, D-pantothenic acid 26 mg, folic acid 0.68 mg, biotin 0.3 mg, choline 650 mg; Cu 8 mg, Fe 80 mg, Zn 80 mg, Mn 60 mg, I 0.25 mg, Se 0.20 mg.

Nutrient levels were measured except for metabolizable energy (ME). ME was a calculated value.