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KMID : 0545120190290121947
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Journal of Microbiology and Biotechnology
2019 Volume.29 No. 12 p.1947 ~ p.1956
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Impact of Breed on the Fecal Microbiome of Dogs under the Same Dietary Condition
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Reddy Kondreddy Eswar
Kim Hye-Ran
Jeong Jin-Young
So Kyoung-Min
Lee Seul
Ji Sang-Yun
Kim Min-Ji
Lee Hyun-Jung
Lee Sung-Dae
Kim Ki-Hyun
Kim Min-Seok
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Abstract
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The gut microbiome influences the health and well-being of dogs. However, little is known about the impact of breed on the fecal microbiome composition in dogs. Therefore, we aimed to investigate the differences in the fecal microbiome in three breeds of dog fed and housed under the same conditions, namely eight Maltese (8.0 ± 0.1 years), eight Miniature Schnauzer (8.0 ± 0.0 years), and nine Poodle dogs (8.0 ± 0.0 years). Fresh fecal samples were collected from the dogs and used to extract metagenomic DNA. The composition of the fecal microbiome was evaluated by 16S rRNA gene amplicon sequencing on the MiSeq platform. A total of 840,501 sequences were obtained from the 25 fecal samples and classified as Firmicutes (32.3?97.3% of the total sequences), Bacteroidetes (0.1?62.6%), Actinobacteria (0.2?14.7%), Fusobacteria (0.0?5.7%), and Proteobacteria (0.0?5.1%). The relative abundance of Firmicutes was significantly lower in the Maltese dog breed than that in the other two breeds, while that of Fusobacteria was significantly higher in the Maltese than in the Miniature Schnauzer breed. At the genus level, the relative abundance of Streptococcus, Fusobacterium, Turicibacter, Succinivibrio, and Anaerobiospirillum differed significantly among the three dog breeds. These genera had no correlation with age, diet, sex, body weight, vaccination history, or parasite protection history. Within a breed, some of these genera had a correlation with at least one blood chemistry value. This study indicates that the composition of the fecal microbiome in dogs is affected by breed.
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KEYWORD
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Dog, fecal microbiome, breed, dietary condition, bacterial abundance
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