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J Vet Med Sci. 2018 May 18;80(5):749-754. doi: 10.1292/jvms.17-0582. Epub 2018 Apr 11.

Molecular diversity of the faecal microbiota of Toy Poodles in Japan.

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Research and Education Center for Prevention of Global Infectious Diseases of Animals, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi, Tokyo 183-8509, Japan.
Minami Koganei Animal Hospital, Koganei-shi, Tokyo 184-0014, Japan.
Drexel University Dornsife School of Public Health, Philadelphia PA 19104, U.S.A.
Centre for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY 10032, U.S.A.
Murata Animal Hospital, Mobara-shi, Chiba 299-4114, Japan.


The intestinal microbiota was revealed with the recent advances in molecular techniques, such as high-throughput sequencing analysis. As a result, the microbial changes are thought to influence the health of humans and animals and such changes are affected by several factors including diet, genetics, age, sex, and diseases. Similar studies are being conducted in dogs, and the knowledge of intestinal microbiota in dogs is expanding. Nonetheless, basic information on intestinal microbiota in dogs is less than that of humans. Our aim was to study toy poodles (n=21), a popular companion dog, in terms of basic characteristics of the faecal microbiota by 16S rRNA gene barcoding analysis. In the faecal microbiota, Firmicutes, Bacteroidetes, Proteobacteria, and Fusobacteria were the dominant phyla (over 93.4% of faecal microbiota) regardless of the attributes of the dogs. In family level, Enterobacteriaceae, Bacteroidaceae, and Lachnospiraceae were most prevalent. In case of a dog with protein-losing enteropathy, the diversity of faecal microbiota was different between before and after treatment. This study provides basic information for studying on faecal microbiota in toy poodles.


16S rRNA gene barcoding; Toy Poodle; faecal microbiota

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