Table 7.

Effect of CB on intestinal morphology of piglet jejunum^a.

Item	NC	PC	PC + CB	Contrast (P-value)b
				#1	#2	#3
Villus height, μm
3 h	342 ± 23	332 ± 22	353 ± 13	0.707	0.716	0.462
6 h	339 ± 22	327 ± 24	345 ± 15	0.703	0.838	0.559
12 h	340 ± 22	299 ± 13	341 ± 14	0.109	0.967	0.101
Crypt depth, μm
3 h	133 ± 7	144 ± 7	129 ± 3	0.193	0.615	0.080
6 h	135 ± 6	151 ± 7	133 ± 10	0.161	0.821	0.109
12 h	133 ± 6	173 ± 5	144 ± 5	<0.001	0.197	0.002
Villus height: crypt depth
3 h	2.54 ± 0.12	2.20 ± 0.10	2.74 ± 0.09	0.036	0.181	0.002
6 h	2.51 ± 0.12	2.06 ± 0.10	2.68 ± 0.23	0.032	0.479	0.041
12 h	2.55 ± 0.09	1.74 ± 0.10	2.38 ± 0.08	<0.001	0.207	<0.001

^aNC, piglets were fed the daily diet and received oral administration of sterile physiological saline; PC, piglets were fed the daily diet and received oral challenge with ETEC K88; PC + CB, piglets were fed the CB-supplemented diet and received oral challenge with ETEC K88. Values are means ± standard error.

^bContrast, #1:NC vs. PC; #2: NC vs. PC + CB; #3: PC vs. PC + CB.