Table 9.

Apparent ileal digestibility of DM, CP, Ca and P of broiler chickens fed diets with phytase supplementation.

Item		Phytase, FTU/kg Feed						p-Value
	NC 1	0 2	500	1000	2000	4000	SEM	Linear	Quadratic	NC vs. 0	0 vs. 1000 to 4000	0 vs. 2000 to 4000
DM 3, %	54.1	51.3	52.2	54.0	52.0	53.4	0.9	0.605	0.776	0.046	0.088	0.218
CP 4, %	67.8	65.4	69.7	70.6	69.5	70.0	1.4	0.129	0.187	0.244	0.008	0.018
Ca 5, %	51.4	45.9	50.1	50.1	50.6	52.3	3.5	0.745	0.832	0.262	0.204	0.196
P 6, %	42.1	36.6	39.6	40.0	40.1	43.7	2.3	0.941	0.607	0.092	0.086	0.070

¹ Negative control, ² Positive control (PC), ³ Dry matter, ⁴ Crude protein, ⁵ Calcium, ⁶ Phosphorus.