Table 1 Formula and chemical composition of the basal diet

		Laying hen diets
Corn		53.65
Soybean meal		18.25
Corn gluten meal		3.86
Wheat bran		11.27
Soybean oil		1.60
Limestone		9.35
Tricalcium phosphate		1.05
Salt		0.30
DL-Methionine		0.15
Lysin-HCl		0.02
Vitamin-mineral mixture1		0.50
Total		100.0
Calculated value	ME (kcal/kg)	2,700
	Crude protein (%)	16.0
	Methionine (%)	0.76
	Lysine (%)	0.32
	Ca (%)	3.80
	Available P (%)	0.30

¹Vitamin-mineral mixture provided following nutrients per kg of diet: vitamin A, 15,000 IU; vitamin D₃, 1,500 IU; vitamin E, 20.0 mg; vitamin K₃, 0.70 mg; vitamin B₁₂, 0.02 mg; niacin, 22.5 mg; thiamin, 5.0 mg; folic acid, 0.70 mg; pyridoxin, 1.3 mg; riboflavin, 5 mg; pantothenic acid, 25 mg; choline chloride, 175 mg; Mn, 60 mg; Zn, 45 mg; I, 1.25 mg; Cu, 10.0 mg; Fe, 72 mg; Co, 2.5 mg.