Table 3.

Changes of intestinal weight in Escherichia coli–challenged Ma chickens treated with heat stress.

Item	Control (g)	E. coli group (g)	HS + E. coli group (g)
Small intestine	12.83 ± 2.54	12.58 ± 1.52	10.22 ± 1.83∗
Duodenum	3.78 ± 0.64	3.63 ± 0.47	3.00 ± 0.59
Jejunum	5.84 ± 1.48	3.75 ± 0.54#	4.58 ± 0.50∗
Ileum	3.21 ± 0.61	5.20 ± 0.89##	2.64 ± 0.99∗∗
Cecum	2.34 ± 0.94	3.59 ± 1.62	2.19 ± 0.99

^#P < 0.05, ^##P < 0.01 vs. control group; ^∗P < 0.05, ^∗∗P < 0.01 vs. E. coli group, n = 12.

Abbreviation: HS, heat stress.