Table 5.

Growth performance and apparent total tract digestibility (ATTD) of Ca and P for pigs fed the positive control diet (PC), the negative control diet (NC), or the NC diet supplemented with 250, 5060, 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
Initial BW, kg	10.77	10.81	10.82	10.81	10.74	10.74	0.22	0.903	0.766	0.955	0.927
Final BW, kg	28.40	21.54	24.41	26.55	26.87	29.40	0.84	0.001	0.001	0.027	0.492
ADG, g/d	600	383	480	562	576	637	30.40	0.001	0.001	0.009	0.415
ADFI, g/d	1,029	848	956	1,025	1,070	1,118	47.73	0.016	0.001	0.054	0.199
G:F	0.584	0.482	0.529	0.549	0.553	0.568	0.015	0.001	0.001	0.020	0.740
ATTD Ca, %	65.96	51.61	65.49	72.36	74.96	73.53	2.88	0.009	0.001	0.001	0.033
ATTD P, %	53.64	40.82	52.53	50.29	63.82	63.05	1.64	0.001	0.001	0.001	0.001

¹FTU = phytase units.

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