Table 18. Effects of different probiotics on intestinal morphology in weaned piglets challenged Salmonella (Exp.2)

Items (µm)1)		Intestinal morphology
CHAL	PRO	VH	CD	VH/CD
−	NC	297.22	136.10	2.28
−	PC	369.51	171.43	2.20
−	K	325.27	140.61	2.34
−	WK1	391.36	168.89	2.38
−	K-WK1	366.25	198.32	1.90
+	NC	300.89	197.17	1.58
+	PC	348.14	175.60	2.02
+	K	350.91	171.69	2.05
+	WK1	307.40	165.64	1.88
+	K-WK1	346.66	204.30	1.71
−		349.92	163.07	2.22
+		330.80	182.88	1.85
	NC	299.06	166.64	1.93
	PC	358.83	173.52	2.11
	K	338.09	156.15	2.20
	WK1	349.38	167.27	2.13
	K-WK1	356.46	201.31	1.81
p-value	CHAL	0.162	0.085	0.002
	PRO	0.051	0.141	0.156
	CHAL×PRO	0.138	0.361	0.481
SE		7.58	5.99	0.06

CHAL −, non-challenge with Salmonella; NC, basal diet; PC, NC + 0.01% Lactiplantibacillus plantarum; K, NC + 0.1% Pediococcus acidilactic K; WK1, NC + 0.1% Pediococcus pentosaceus SMFM2016-WK1; K-WK1, NC + 0.05% P. acidilactici K + 0.05% P. pentosaceus SMFM2016-WK1; CHAL +, challenge with Salmonella.
PRO, probiotics; VH, villus height; CD, crypt depth; VH/CD, villus height to crypt depth ratio.