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Selective Medium for Enumeration of Tannin-Protein Complex Degrading Streptococcus spp. in Feces of Koalas

Ro Osawa1 And Tomotar Mitsuoka2

Veterinary Service and Research, Lone Pine Koala Sanctuary, Fig Tree Pocket, Brisbane, Queensland 4069, Australia 

International Frontier Research System, Riken, Wako, Saitama 351, Japan

ABSTRACT

A selective agar plate medium (tannin-treated brain heart infusion agar supplemented with colistin-oxolinic acid) was developed to enumerate tannin-protein complex-degrading Streptococcus bovis in the feces of koalas. This medium was successfully used to enumerate strains from fecal samples but failed to enumerate those from pure cultures.