Table 4.

Bone mineralization of the pigs supplemented with monocalcium phosphate (MCP) or phytase¹

Diet		Bone ash, %	Bone ash Ca, %	BoneashP, %	Bone ash, g	Bone Ca, g	Bone P, g	Bone Ca/P ratio
MCP, %
0.25		43.7	33.8	16.9	3.18	1.07	0.53	2.00
0.60		46.0	33.6	17.0	4.01	1.34	0.68	1.98
0.95		50.1	33.4	17.2	5.09	1.70	0.88	1.94
Phytase, U/kg
500		48.0	33.9	17.3	4.51	1.51	0.78	1.96
1,000		48.2	34.0	17.6	4.87	1.64	0.85	1.92
2,000		50.6	34.4	17.6	5.28	1.80	0.93	1.94
3,000		50.2	34.6	17.7	5.36	1.84	0.94	1.95
Ca/P ratio
1.05		49.0	33.6	17.4	4.95	1.65	0.86	1.93
1.20		49.5	34.8	17.8	5.06	1.75	0.90	1.96
	SD2	2.20	1.44	0.59	0.41	0.15	0.07	0.04
P value
MCP	L3	<0.01	0.67	0.32	<0.01	<0.01	<0.01	<0.01
	Q3	0.41	0.98	0.70	0.53	0.61	0.45	0.46
Phytase	L4	<0.01	0.14	<0.01	<0.01	<0.01	<0.01	0.09
	Q4	<0.01	0.92	0.08	<0.01	<0.01	<0.01	<0.01
Ca/P ratio5		0.41	<0.01	0.03	0.36	0.03	0.06	0.04

There were six replicates of one pig.

SD, standard deviation.

Linear and quadratic effects of monocalcium phosphate.

Linear and quadratic effects of phytase.

The effect of Ca/P ratio compares phytase diets between the ratios of 1.05 and 1.20, and no significant interaction between phytase and the Ca/P ratio was observed.