Table 3.

Effects of ZnO administration on intestinal morphology in PEDV-infected piglets.

Items	Control	PEDV	ZnO+PEDV	P value
Villus height (μm)
Duodenum	265 ± 55	227 ± 18	265 ± 41	0.126
Jejunum	276 ± 34b	153 ± 16a	137 ± 20a	<0.001
Crypt depth (μm)
Duodenum	69 ± 8a	83 ± 12b	70 ± 7a	0.012
Jejunum	67 ± 11a	104 ± 22b	56 ± 11a	<0.001
Villus height/crypt depth
Duodenum	3.76 ± 0.59b	2.79 ± 0.66a	3.90 ± 0.35b	0.001
Jejunum	4.15 ± 0.74c	1.63 ± 0.32a	2.59 ± 0.26b	<0.001
Villous surface area (μm2)
Duodenum	6966 ± 1850	5913 ± 537	6383 ± 1305	0.312
Jejunum	6785 ± 1325b	3484 ± 463a	4215 ± 1538a	<0.001

Values are mean and pooled SEM, n = 8. ^a,b,cWithin a row means with different superscripts differ, P < 0.05.