Effects of graded levels of CHC on the intestinal microflora in weaned piglets^a (n = 6).

Items	MMT, mg kg−1, 1000	CHC, mg kg−1									SEM	P value
		0		500		1000		1500		2000		ANOVA	Linear	Quadratic
Ileum (lg (CFU g −1 ))
Total microbial	7.73	7.24	7.62		8.24		7.86		7.57		0.31	0.34	0.92	0.11
Lactobacilli	6.46	5.98	6.60		7.15		6.51		6.22		0.43	0.53	0.84	0.45
Escherichia coli	1.43	1.71	1.33		0.51		2.30		2.50		0.75	0.48	0.61	0.60
Cecum (lg (CFU g −1 ))
Total microbial	7.62	7.43	7.35		7.28		7.83		7.36		0.24	0.61	0.91	0.43
Lactobacilli	6.16	6.12	6.71		6.68		6.30		6.22		0.30	0.59	0.50	0.90
Escherichia coli	3.70a	4.00a	2.52b		3.01b		3.38ab		3.19ab		0.31	0.04	0.01	0.99
Colon (lg (CFU g −1 ))
Total microbial	8.25	8.22	8.04		8.14		8.21		8.08		0.21	0.98	0.56	0.88
Lactobacilli	7.91	7.55	7.51		7.41		7.71		7.26		0.34	0.80	0.85	0.99
Escherichia coli	3.57	3.41	2.83		3.28		3.44		3.49		0.40	0.83	0.49	0.46

^{a a,b,c}Means within the same row without common superscripts differ significantly (P < 0.05).