Table 6.

Effect of dietary 5-HTP supplementation on intestinal morphology of weaned piglets

Items	Treatments			SEM
	CON	250 mg/kg	500 mg/kg		P value
Jejunum
VH (µm)	278.76b	333.24a	313.65a	10.170	0.040
CD (µm)	133.81	117.14	137.88	4.307	0.110
V/C	2.13c	2.94a	2.46b	0.095	<0.001
Ileum
VH (µm)	271.20	319.64	309.15	11.295	0.188
CD (µm)	144.50	123.90	124.65	6.500	0.362
V/C	1.93b	2.67a	2.51a	0.130	0.039

Abbreviations: VH: villus height; CD: crypt depth; V/C: villus height/crypt depth