Table 2.

Effect of PRRSV infection on intestinal pathology and clinical scores

Parameter	Control group	PRRSV-infected group	P value
Duodenum
Villus height (μm)	658.1 ± 26.75	459.2 ± 30.79***	< 0.001
Crypt depth (μm)	342.4 ± 15.06	339.3 ± 14.04	0.8817
Villus: crypt ratio	1.96 ± 0.12	1.38 ± 0.11**	0.0027
Lesion score	0.00	1.67 ± 0.75**	0.0041
Jejunum
Villus height (μm)	567.13 ± 24.80	268.40 ± 19.58***	< 0.001
Crypt depth (μm)	252.35 ± 22.42	271.27 ± 14.89	0.4913
Villus: crypt ratio	2.39 ± 0.22	1.01 ± 0.10***	< 0.001
Lesion score	0.00	2.67 ± 0.47***	< 0.001
Ileum
Villus height (μm)	499.80 ± 15.86	287.30 ± 14.04***	< 0.001
Crypt depth (μm)	238.01 ± 15.43	234.40 ± 8.13	0.8364
Villus: crypt ratio	2.15 ± 0.10	1.24 ± 0.07***	< 0.001
Lesion score	0.00	2.50 ± 0.50***	< 0.001

Data are expressed as the mean ± SEM. * p < 0.05, ** p < 0.01, *** p < 0.001.