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Phylogenetic tree of the Butyrivibrio group bacterial 16S rRNA gene clones from goat rumen. Clone A and clone Z are from control (HQ326588 to HQ326624), clone G (JN008400 to JN008437) are from goats treated by garlic oil infusion (0.8 g/d) via ruminal fistula. GenBank accession numbers of the known bacteria are shown in brackets. The bar represents 1 nt substitution per 100 nt.
