Table 3.

Classification and abundances of 594 bacterial 16S rRNA gene clone sequences isolated from cecal contents of broilers from each diet group on each sampling day

Phylum	Class	No. of bacterial 16S rRNA gene clone sequences for the indicated diet groupa on the following sample day:
		Day 14			Day 21			Day 28			Day 35			Day 42
		C	M1	M2	C	M1	M2	C	M1	M2	C	M1	M2	C	M1	M2
Firmicutes	Clostridia
	Subcluster XIVa	18	14	9	18	16	15	12	5	14	9	11	15	13	14	23
	Subcluster IV	17	19	16	14	13	16	11	7	13	2	11	7	10	14	8
	Bacilli	5			1	2	3	1			1	1	1			2
	Other	8	5	1	5	5	5	4	7	14	2	3	6	5	5	2
Bacteroidetes	Bacteroidia				1	8	1	14	12	15	14	6	7	11	8	10
Proteobacteria	Gammaproteobacteria	2	1					1			1		1	1	2
Total		50	39	26	39	44	40	43	31	56	29	32	37	40	43	45

^aC, control group; M1 and M2, groups receiving MOS supplementation at 1 and 2 kg t⁻¹, respectively.