Table 5.

Digestibility of macronutrients, P and gross energy (GE) expressed as g/kg, fecal score and production of dogs fed the experimental diets. ^a,b Values in the same row that share a common superscript are not statistically different (p > 0.05).

Parameter	Diets					p
	IZ	IZ+	OZ	OZ+	SEM	Zn	Enzyme	Zn × Enzyme
DM	736	742	729	728	5.6	0.078	0.646	0.493
OM	765	769	758	758	5.0	0.076	0.67	0.676
CP	711	737	725	701	19.1	0.553	0.943	0.197
Starch	994	993	993	994	0.9	0.901	0.645	0.345
EE	941	939	937	938	1.6	0.147	0.596	0.419
NDF	444 a	496 b	471 ab	456 ab	12.8	0.639	0.162	0.013
GE	767	771	763	762	5.9	0.287	0.798	0.622
P	273	276	332	372	27.8	0.009	0.447	0.493
Fecal score	3.2	3.2	3.3	3.3	0.10	0.121	0.654	0.852
Fecal production, g DM	325	321	324	330	7.1	0.586	0.844	0.493