Table 4.

Effects of BL and PSE on intestinal mucosa morphology of weaned piglets ¹.

Items 2	PSE × BL				Pooled SEM	p-Value
	−PSE	−PSE	+PSE	+PSE		PSE	BL	Interaction
	−BL	+BL	−BL	+BL
Duodenum
VH, μm	376	379	357	364	21	0.408	0.813	0.919
CD, μm	276	289	277	276	17	0.735	0.734	0.702
V/C ratio	1.37	1.32	1.29	1.32	0.03	0.207	0.668	0.190
Jejunum
VH, μm	288 B	385 A	333 AB	324 AB	18	0.643	0.026	0.007
CD, μm	221 A	181 B	176 B	203 AB	10	0.252	0.523	0.002
V/C ratio	1.32 C	2.14 A	1.93 AB	1.58 BC	0.11	0.808	0.041	<0.001
Ileum
VH, μm	303 C	325 B	342 A	310 C	4	0.003	0.173	<0.001
CD, μm	153	156	157	144	5	0.433	0.338	0.136
V/C ratio	2.00	2.09	2.18	2.16	0.07	0.088	0.592	0.447

¹ Values were presented as means ± pooled SEM, n = 6. ² BL, multi-strain probiotics; PSE, Perilla frutescens seed extract; −PSE−BL, basal diet; +PSE−BL, basal diet + 1 g/kg Perilla frutescens seed extract; +BL−PSE, basal diet + 2 g/kg multi-strain probiotics; +BL + PSE, basal diet+2 g/kg multi-strain probiotics + 1 g/kg Perilla frutescens seed extract. ^A,B,C Different letters on the shoulders of peers indicate significant differences (p < 0.05).