Table 6.

Bone ash, bone Ca, and bone P for pigs fed the positive control diet (PC), the negative control diet (NC), or the NC diet supplemented with 250, 500, 1,000, or 1,500 FTU¹/kg diets, Exp. 1²

	Treatments							P-value
Item	PC	NC	250 FTU	500 FTU	1,000 FTU	1,500 FTU	Pooled SEM	PC vs. NC	Linear	Quadratic	PC vs. 1,500 FTU
Bone ash3, %	42.71	33.48	35.79	37.73	40.30	42.58	0.79	0.001	0.001	0.008	0.898
Bone ash, g/femur	14.80	7.49	8.89	10.58	12.26	14.31	0.57	0.001	0.001	0.018	0.608
Bone Ca, %	34.50	34.13	34.15	34.31	34.80	34.16	0.51	0.619	0.852	0.327	0.605
Bone Ca, g/femur	5.10	2.57	3.05	3.64	4.27	4.91	0.22	0.001	0.001	0.025	0.604
Bone P, %	16.96	16.48	16.76	16.64	16.94	16.81	0.25	0.161	0.370	0.411	0.673
Bone P, g/femur	2.51	1.24	1.50	1.76	2.08	2.42	0.11	0.001	0.001	0.029	0.617

¹FTU = phytase units.

²Data are means of 10 observations per treatment, except for the NC, which had 9 observations.

³Bone ash as percent of the weight of dried, defatted bone.