TABLE 1.

Ingredient and nutrient composition of the experimental diets, as-is basis.

Ingredient (%)	Starter phase		Grower phase		Finisher phase
	Diet 1–2	Diet 3–6	Diet 1–2	Diet 3–6	Diet 1–2	Diet 3–6
Corn	60.100	61.720	65.070	66.690	67.088	68.708
Soy bean meal (46%)	33.382	33.112	28.286	28.016	25.833	25.563
Poultry fat	2.473	1.899	2.821	2.248	3.616	3.042
Dicalcium phosphate	1.610	0.792	1.481	0.663	1.284	0.466
Limestone	1.015	1.130	0.981	1.096	0.919	1.034
Salt	0.355	0.282	0.359	0.285	0.361	0.288
Sodium bicarbonate	0.120	0.120	0.120	0.120	0.120	0.120
DL-Methionine	0.330	0.328	0.285	0.283	0.249	0.247
L-Lysine HCl	0.244	0.248	0.233	0.237	0.181	0.185
L-Threonine	0.102	0.102	0.096	0.096	0.082	0.082
Choline chloride (60%)	0.031	0.028	0.029	0.026	0.028	0.026
Vitamin premix1	0.100	0.100	0.100	0.100	0.100	0.100
Trace mineral premix2	0.100	0.100	0.100	0.100	0.100	0.100
Selenium premix3	0.020	0.020	0.020	0.020	0.020	0.020
Santoquin	0.020	0.020	0.020	0.020	0.020	0.020
Calculated nutrients (%)
Dry matter	88.12	87.94	87.99	87.81	87.98	87.80
AMEn (kcal/kg)	3,035	3,035	3,108	3,108	3,180	3,180
Crude protein	21.20	21.20	19.10	19.10	18.00	18.00
AID Lys	1.18	1.18	1.05	1.05	0.95	0.95
AID Met	0.61	0.61	0.54	0.54	0.50	0.50
AID TSAA	0.89	0.89	0.80	0.80	0.74	0.74
AID Thr	0.77	0.77	0.69	0.69	0.65	0.65
AID Trp	0.22	0.22	0.19	0.19	0.18	0.18
AID Arg	1.27	1.27	1.12	1.12	1.05	1.05
AID Ile	0.79	0.79	0.71	0.70	0.66	0.66
AID Val	0.86	0.86	0.78	0.78	0.74	0.74
Total calcium	0.90	0.74	0.84	0.68	0.76	0.60
Total phosphorus	0.71	0.56	0.66	0.51	0.61	0.46
Available phosphorus	0.45	0.30	0.42	0.27	0.38	0.23
Phytate phosphorus
Sodium	0.20	0.17	0.20	0.17	0.20	0.17
Potassium	0.89	0.88	0.80	0.80	0.75	0.75
Chloride	0.30	0.25	0.30	0.25	0.29	0.24
Magnesium	0.17	0.17	0.16	0.16	0.15	0.15
Copper	16.85	16.86	16.21	16.22	15.90	15.90
Selenium	0.20	0.20	0.20	0.20	0.20	0.20
Choline	1,750	1,750	1,650	1,650	1,600	1,600
Linoleic acid	1.17	1.20	1.27	1.30	1.31	1.34
Analyzed nutrients (%)
Crude protein	21.75	21.00	18.90	18.65	18.75	18.70
Phytate phosphorus			0.22	0.22	0.22	0.22

¹Supplied per kilogram of diet: manganese, 100 mg; magnesium, 27 mg; zinc, 100 mg; iron, 50 mg; copper, 10 mg; iodine, 1 mg. ²Supplied per kilogram of diet: vitamin A, 30,863 IU; vitamin D₃, 22,045 ICU; vitamin E, 220 IU; vitamin B₁₂, 0.05 mg; menadione, 6.0 mg; riboflavin, 26 mg; d-pantothenic acid, 40 mg; thiamine, 6.2 mg; niacin, 154 mg; pyridoxine, 11 mg; folic acid, 3.5 mg; biotin, 0.33 mg. ³Supplied 0.12 mg of selenium per kg of diet.