Table 14.

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

	No phytase		With phytasea			P values
Items	CuSO4	Cu-MHACb	CuSO4	Cu-MHAC	SEM	Cu	Phytase	Cu × phytase
Zn, mg/kg	109.63	105.68	114.91	118.14	3.54	0.92	0.01	0.30
Cu, mg/kg	1.92	1.27	0.53	0.31	0.26	0.70	<0.01	0.42
Ca, %	13.04	12.55	14.14	14.89	0.26	0.62	<0.01	0.02
P, %	6.65	6.44	7.38	7.81	0.14	0.41	<0.01	0.03
Ash, %	36.69	35.95	40.41	41.91	0.71	0.58	<0.01	0.10

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

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