Table 6.

Effect of graded levels of XOS (mg/kg feed) on intestinal morphology of weaned piglets

Item	CON	XOS100	XOS500	XOS1000	SEM	P-value	Linear	Quadratic
Duodenum
VH, μm	500.1	507.5	510.8	505.9	2.94	0.728	0.499	0.371
CD, μm	230.5	222.2	209.2	223.5	3.46	0.274	0.325	0.149
VH:CD	2.21	2.31	2.39	2.22	0.03	0.282	0.767	0.079
Jejunum
VH, μm	421.0b	430.6ab	442.5a	425.5b	2.31	0.014	0.226	0.007
CD, μm	196.9	194.9	192.9	195.5	1.27	0.815	0.642	0.442
VH:CD	2.14b	2.25ab	2.30a	2.18b	0.02	0.029	0.375	0.005
Ileum
VH, μm	377.0c	400.2ab	411.8a	387.3bc	3.41	0.004	0.152	<0.001
CD, μm	130.2	128.6	127.4	127.6	0.99	0.806	0.371	0.702
VH:CD	2.90b	3.11a	3.23a	3.04ab	0.03	0.001	0.001	<0.001

^a–cMeans in a row with different superscripts differ significantly (P < 0.05).