Table 15.

A three-way subclinical necrotic enteritis challenge × diet type × supplemental enzymes interaction for intestinal lesion score at 16 d of age.^1,2

Challenge	Diet type	Enzyme	Duodenum	Jejunum	Ileum
No	Wheat	Control	0.17c	0.25d	0.13
		XYN10	0.29c	0.21d	0.04
		XYN11	0.08c	0.21d	0.17
		MAN	0.08c	0.13d	0.17
	Maize	Control	0.13c	0.17d	0.04
		XYN10	0.13c	0.13d	0.04
		XYN11	0.17c	0.17d	0.17
		MAN	0.17c	0.13d	0.08
Yes	Wheat	Control	1.13a	1.00ab	0.13
		XYN10	0.46c	0.50c	0.13
		XYN11	0.71b	0.75abc	0.00
		MAN	0.38c	0.58bc	0.00
	Maize	Control	0.46c	0.42bc	0.00
		XYN10	0.54bc	0.29cd	0.13
		XYN11	0.58bc	1.21a	0.00
		MAN	0.54bc	0.46bc	0.04
Main effects
Challenge		No	0.15	0.17	0.10
		Yes	0.60	0.65	0.05
Diet type		Wheat	0.41	0.45	0.09
		Maize	0.34	0.37	0.06
Enzyme		Control	0.47	0.46	0.07
		XYN10	0.35	0.28	0.08
		XYN11	0.39	0.58	0.08
		MAN	0.30	0.32	0.07
SEM3			0.046	0.054	0.171
P-value
Challenge			<0.001	<0.001	0.136
Diet type			0.395	0.096	0.368
Enzyme			0.719	0.203	0.993
Challenge × diet type			0.465	0.710	0.764
Challenge × enzyme			0.837	0.497	0.069
Diet type × enzyme			0.464	0.376	0.673
Challenge × diet type × enzyme			<0.001	0.008	0.579

^a-d Within a column, means with no common superscripts differ significantly (P < 0.05).

¹Means are based on 6 replicates per treatment with 4 birds per replicate.

²Control = no enzyme; XYN10 = xylanase from family 10; XYN11 = xylanase from family 11; MAN = β-mannanase.

³SEM = standard error of the mean.