Table 1.

Ingredient composition of experimental diets, as-fed basis

Ingredient, %	FTU1 per kilogram
	0	750	1,500	3,000
Ground corn	58.00	58.00	58.00	58.00
Soybean meal, (48% CP)	18.00	18.00	18.00	18.00
Canola meal	18.00	18.00	18.00	18.00
Corn starch	0.10	0.085	0.07	0.04
Soybean oil	4.00	4.00	4.00	4.00
Limestone	0.70	0.70	0.70	0.70
Salt	0.40	0.40	0.40	0.40
Titanium dioxide	0.50	0.50	0.50	0.50
Vitamin mineral premix	0.30	0.30	0.30	0.30
Phytase premix2	—	0.015	0.03	0.06

¹FTU = phytase units.

²Phytase premix contained 5,000 phytase units per gram (Quantum Blue 5,000; AB Vista, Marlborough, UK).