. 2015 Nov 6;1(4):276–282. doi: 10.1016/j.aninu.2015.10.003

Table 6.

Effect of protease supplementation on the morphology of small intestine of weaned piglets.

Item	Site	PC	NC	Protease supplementation, mg/kg NC as fed basis
Item	Site	PC	NC	100	200	300
Villus height, μm	Duodenum	345.13 ± 31.57^a	316.84 ± 25.46^b	328.19 ± 25.79^ab	350.20 ± 19.28^a	343.46 ± 24.01^a
	Jejunum	339.46 ± 23.29^a	304.36 ± 30.45^b	320.07 ± 23.91^ab	342.52 ± 26.03^a	346.87 ± 21.85^a
	Ileum	331.55 ± 16.82^a	320.62 ± 25.41^b	330.41 ± 19.66^a	333.86 ± 20.59^a	329.15 ± 18.06^a
Crypt depth, μm	Duodenum	299.31 ± 21.60^ab	305.34 ± 24.08^a	292.92 ± 17.95^ab	282.24 ± 22.99^b	275.83 ± 25.58^b
	Jejunum	289.04 ± 18.58	295.50 ± 20.00	288.35 ± 19.95	283.07 ± 20.26	288.89 ± 21.52
	Ileum	285.15 ± 20.20^b	306.89 ± 19.15^a	284.96 ± 19.90^b	284.36 ± 20.03^b	278.92 ± 17.24^b
VH:CD	Duodenum	1.15 ± 0.10^ab	1.04 ± 0.13^b	1.12 ± 0.03^ab	1.24 ± 0.02^a	1.25 ± 0.08^a
	Jejunum	1.17 ± 0.05^ab	1.03 ± 0.05^b	1.11 ± 0.06^b	1.21 ± 0.05^a	1.20 ± 0.04^a
	Ileum	1.16 ± 0.04^a	1.04 ± 0.09^b	1.16 ± 0.02^a	1.17 ± 0.01^a	1.18 ± 0.12^a

PC = positive control diet; NC = negative control diet; VH:CD = the ratio of villus height to crypt depth.

^a,b Within a row, means without a common superscript differ significantly (P < 0.05), n = 6.