Table 13.

Effect of Zn sources and phytase on metacarpal mineral concentrations (DM basis) in nursery pigs

	No phytase		With phytasea			P values
Items	ZnO	Zn-MHACb	ZnO	Zn-MHAC	SEM	Zn	Phytase	Zn × phytase
Zn, mg/kg	110.10	105.22	128.61	104.44	3.42	<0.01	0.01	0.01
Cu, mg/kg	1.71	1.48	0.41	0.43	0.26	0.70	<0.01	0.63
Ca, %	12.98	12.61	14.54	14.49	0.27	0.42	<0.01	0.53
P, %	6.62	6.47	7.58	7.60	0.14	0.64	<0.01	0.55
Ash, %	36.65	36.00	41.42	40.89	0.71	0.39	<0.01	0.93

^aWith 500 FTU/kg phytase supplementation in the diets.

^bZn-MHAC represents Zn methionine hydroxy analogue chelate (MINTREX Zn), which is manufactured by Novus International Inc., St. Charles, MO.