Table 1.

Composition of basal diets for broiler chickens.

Ingredient1	Starter diet (%) 1–21 days	Finisher diet (%) 22–42 days
Ground yellow corn	56.00	59.50
Soybean meal	37.00	32.90
Soybean oil	3.66	4.70
Ground limestone	0.57	0.50
Dicalcium phosphate	1.80	1.60
Salt	0.30	0.30
Choline chloride	0.10	0.10
DL-Met	0.24	0.12
Micronutrients2	0.33	0.33
Calculated nutrients level
ME (MJ kg-1)	12.40	12.80
CP	21.20	19.70
Lys	1.19	1.08
Met	0.50	0.40
Met + Cys	0.86	0.74
Ca	0.85	0.77
Non-phytate P	0.44	0.40

¹The ingredient and nutrient composition are reported on an as-fed basis.

²Micronutrients were provided per kilogram of diet: vitamin A (all-trans retinol acetate), 12,500 IU; cholecalciferol, 2,500 IU; vitamin E (all-rac-a-tocopherol acetate), 18.75 IU; vitamin K (menadione Na bisulfate), 5.0 mg; thiamine (thiamine mononitrate), 2.5 mg; riboflavin, 7.5 mg; vitamin B6, 5.0 mg; vitamin B12, 0.0025 mg; pantothenate, 15 mg; niacin, 50 mg; folic acid, 1.25 mg; biotin, 0.12 mg; Cu (CuSO₄⋅5H₂O), 10 mg; Mn (MnSO₄⋅H₂O), 100 mg; Zn (ZnSO₄⋅7H₂O), 100 mg; Fe (FeSO₄⋅7H₂O), 100 mg; I (KI), 0.4 mg; and Se (Na₂SeO₃), 0.2 mg.