Effect of small peptide chelated iron on growth performance, immunity and intestinal health in weaned pigs

Table 4 Effect of SPCI on intestinal morphology in weaned pigs¹

ITEM²						SEM	P-value
ITEM²	T1	T2	T3	T4	T5	SEM	ANOVA	Linear	quadratic
duodenum
Villus height (µm)	355.51^c	425.15^bc	520.29^a	449.22^b	395.70^bc	14.23	< 0.01	0.11	< 0.01
Crypt depth (µm)	258.95^a	168.69^bc	137.72^c	142.01^c	211.18^ab	11.34	< 0.01	0.02	< 0.01
V/C	1.42^d	2.62^bc	3.84^a	3.30^ab	1.95^cd	0.20	< 0.01	0.06	< 0.01
Jejunum
Villus height (µm)	370.08^ab	361.39^ab	408.94^a	324.69^b	299.49^b	12.28	0.04	0.07	0.02
Crypt depth (µm)	216.83	178.61	191.62	199.47	191.50	8.40	0.72	0.38	0.65
V/C	1.78	2.10	2.07	1.71	1.62	0.11	0.54	0.60	0.22
Ileum
Villus height (µm)	319.55^c	322.73^ab	371.70^a	332.19^ab	292.28^c	13.23	0.03	0.67	0.03
Crypt depth (µm)	182.16	170.27	159.42	172.73	163.44	13.74	0.76	0.25	0.50
V/C	1.77	2.00	2.38	1.96	1.82	0.79	0.10	0.56	0.09

¹Mean and total SEM are list in Separate columns (n = 6)
² V/C, Villus height: Crypt depth
³T1, control (basal diet); T2, the basal diet containing 50 mg/kg SPCI ; T3, the basal diet containing 75 mg/kg SPCI ; T4, the basal diet containing 100 mg/kg SPCI; T5, the basal diet containing 125 mg/kg SPCI.
^a-c Means in the same row with no common superscripts differ significantly (P < 0.05)

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