Table 1.

Diet composition for pullets (from 12 to 17 wk old) and laying hens (from 20 to 23 wk old).

	Diet
Item	Pullet	Laying hen
Ingredient, %
Corn	47.0	35.5
Wheat	25	25
Soybean meal	18.8	22.7
Wheat bran	6	5
Soybean oil	0.3	1.43
Corn gluten meal	1.00
Limestone CaCo3	1.2	5.07
Ground CaCO3	2.53
Dicalcium phosphate	0.8	0.7
NaCl	0.24	0.29
Sodium bicarbonate	0.18	0.07
Premix	0.5*	0.5†
DL-methionine	0.07	0.15
L-Thr		0.01
Calculated energy and nutrient composition, as-fed
ME, kcal/kg	2,886	2,711
CP, %	16.0	17.3
Ca, %	1.0 (0.99)	3.5 (3.9)
Total P, %	0.53 (0.54)	0.50 (0.48)
Available P, %	0.4	0.3
Fat, %	3.1	3.8
Cellulose, %	3.0	2.9
Ash, %	5.2	11.5

*Pullet's premix contains the following per kilogram: vitamin A = 10,000 IU; vitamin D₃ = 2,500 IU; vitamin E = 30 IU; vitamin K = 2 mg; vitamin B₁ = 2 mg; vitamin B₂ = 6 mg; nicotinic acid = 40 mg; pantothenic acid = 10 mg; vitamin B₆ = 3 mg; folic acid = 0.6 mg; vitamin B₁₂ = 0.013 mg; biotin = 0.1 mg; Fe = 50 mg; Zn = 75 mg; Mn = 80 mg; Cu = 15 mg; I = 1.5 mg; and Se = 0.3 mg.

^†Laying hen's premix contains the following per kilogram: vitamin A = 8,000 IU; vitamin D_{3 =} 2,000 IU; vitamin E = 20 IU; vitamin K = 1 mg; vitamin B₁ = 2 mg; vitamin B₂ = 4 mg; nicotinic acid = 8 mg; pantothenic acid = 20 mg; vitamin B₆ = 3 mg; vitamin B₁₂ = 0.005 mg; Fe = 18 mg; Zn = 73 mg; Mn = 90 mg; Cu = 5 mg; I = 1 mg; and Se = 0.15 mg.

(): analyzed nutritional values.