Table 2.

Composition and calculated nutrient content (as-fed basis) of period 2 treatment diets^a

	Treatmentb
	NC	BZA	BC50	AGP
Ingredient, %
Corn	58.94	58.34	58.74	58.71
Soybean meal	34	34	34	34
Soybean oil	2.50	2.50	2.50	2.50
L-Lysine·HCl	0.35	0.35	0.35	0.35
DL-Methionine	0.18	0.18	0.18	0.18
L-Threonine	0.13	0.13	0.13	0.13
Limestone	1.25	1.25	1.25	1.25
Monocalcium phosphate	1.40	1.40	1.40	1.40
Salt	0.60	0.60	0.60	0.60
Vitamin premixc	0.30	0.30	0.30	0.30
Trace mineral premixd	0.15	0.15	0.15	0.15
Antibiotice	—	—	—	0.23
Benzoic acid	—	0.60	—	—
Benzocal-50	—	—	0.20	—
Titanium dioxide	0.20	0.20	0.20	0.20
Calculated nutrient composition
ME, kcal/kg	3,381	3,361	3,374	3,373
CP, %	21.6	21.6	21.6	21.6
SID Lys, %	1.28	1.28	1.28	1.28
SID Thr, %	0.79	0.79	0.79	0.79
SID Met, %	0.47	0.47	0.47	0.47
SID Met + Cys, %	0.76	0.76	0.76	0.76
SID Trp, %	0.23	0.23	0.23	0.23
SID Val, %	0.84	0.84	0.84	0.84
SID Ile, %	0.78	0.78	0.78	0.78
SID Lys:ME, g/Mcal	3.79	3.81	3.79	3.79
Total Ca, %	0.84	0.84	0.84	0.84
Total P, %	0.70	0.70	0.70	0.70
STTD P, %	0.43	0.43	0.43	0.43

^aPeriod 2 treatment diets were fed for the last 14 d of the 21-d growth performance study.

^bBenzoic acid, Benzocal-50, or Mecadox 10 are added to the base diet at the expense of corn.

^cVitamin premix provided the following per kg diet: vitamin A, 4950 IU; vitamin D3, 1980 IU; vitamin E, 53 IU; vitamin K, 4 mg; vitamin B12, 40 µg; riboflavin, 10 mg; niacin, 60 mg; and pantothenic acid, 33 mg.

^dTrace mineral premix provided the following per kg diet: Fe (as ferrous sulfate), 109 mg; Cu (as copper sulfate), 16.5 mg; Zn (as zinc sulfate), 110 mg; Mn (as manganous oxide), 33 mg; I (as calcium iodate), 0.3 mg; and Se (as sodium selenite), 0.3 mg.

^eCarbadox, 50 ppm (added as Mecadox 10, Phibro Animal Health).

Abbreviations: ME: metabolizable energy; SID: standardized ileal digestible; STTD: standardized total tract digestible.