TABLE 7.

T-RFLP analysis-based hierarchical microbial composition of colon digesta in early-weaned pigs fed different experimental diets

Taxon	Microbial level (%)b				SEMa
	C	PRO	RPS	PRO-RPS
Phylum Bacteroidetes	29.4	30.5	30.3	30.4	0.25
Class unclassified Bacteroidetes	0.4	1.5	1.3	1.4	0.25
Phylum Firmicutes	65.6	62.0	63.9	63.8	0.74
Class Bacilli	9.9	9.5	8.7	10.0	0.30
Order Lactobacillales	9.9	9.5	8.7	10.0	0.30
Class Clostridia	82.1	79.4	81.2	79.6	0.65
Order Clostridiales	58.2	59.9	68.1	57.4	2.46
Order unclassified Clostridia	23.8A	19.5A	13.1B	22.1A	2.35
Class Mollicutes	0.0	0.0	0.4	0.0	0.10
Order incertae sedis 8	0.0	0.0	0.4	0.0	0.10
Class unclassified Firmicutes	3.7	3.1	3.5	4.2	0.23
Phylum Actinobacteria	0.0	0.4	0.0	0.0	0.10
Class Actinobateria	0.0	0.4	0.0	0.0	0.10
Subclass Coriobacteridae	0.0	0.4	0.0	0.0	0.10
Order Coriobacteriales	0.0	0.4	0.0	0.0	0.10
Phylum Proteobacteria	4.0	5.0	4.4	4.8	0.22
Class Epsilonproteobacteria	0.0	0.8	0.9	0.7	0.20
Order Campylobacterales	0.0	0.8	0.9	0.7	0.20
Class Deltaproteobacteria	0.4	0.8	0.4	0.7	0.10
Order Desulfovibrionales	0.4	0.8	0.4	0.7	0.10
Class Gammaproteobacteria	1.8	1.9	2.2	1.7	0.10
Order Pasteurellales	0.4	0.4	0.4	0.3	0.03
Order Enterobacteriales	1.5	1.5	1.8	1.4	0.09
Class Betaproteobacteria	1.5	1.5	0.9	1.3	0.14
Order Burkholderiales	1.1	1.1	0.4	1.0	0.17
Order unclassified Betaproteobacteria	0.4	0.4	0.5	0.3	0.04
Class Alphaproteobacteria	0.4	0.0	0.0	0.0	0.10
Order unclassified Alphaproteobacteria	0.4	0.0	0.0	0.0	0.10
Class unclassified Proteobacteria	0.0	0.4	0.0	0.3	0.10
Phylum Lentisphaerae	0.0	0.4	0.4	0.0	0.12
Class Lentisphaerae	0.0	0.4	0.4	0.0	0.12
Order Victivallales	0.0	0.4	0.4	0.0	0.12
Phylum unclassified Bacteria	0.0	0.8	0.0	0.0	0.20

^aPooled standard error of the mean.

^bMeans within rows without common letters differ (P < 0.05).