Contrasting gut microbiota in captive Eurasian otters (Lutra lutra) by age
| Autor: | Hyeong-Hoo Kim, Yumiko Okamoto, Kentaro Nagaoka, Cheolwoon Woo, Natsumi Ichinohe, Sakura Ito, Junpei Kumura, Sungyong Han, Naomichi Yamamoto, Chiho Nakamura |
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| Rok vydání: | 2021 |
| Předmět: |
Microflora
Endangered species Captivity Zoology Gut flora Biochemistry Microbiology Near threatened species Otter Feces Ex situ conservation Microbial ecology Gastrointestinal tract biology.animal RNA Ribosomal 16S Genetics Animals Humans Microbiome Molecular Biology Original Paper biology Endangered Species General Medicine biology.organism_classification Gastrointestinal Microbiome Lutra 16S rRNA gene Otters |
| Zdroj: | Archives of Microbiology |
| ISSN: | 1432-072X |
| Popis: | Understanding the gut microbiota characteristics of endangered species such as the Eurasian otter (Lutra lutra), especially in their early stages of life, could be essential for improving their management and ex situ conservation strategies. Here, we analyzed the gut microbiota diversity, composition, and function of captive Eurasian otters at different ages using high-throughput 16S rRNA gene sequencing. We found that: (1) Clostridiaceae was abundant in all age stages; (2) Lactococcus in cubs is thought to predominate for digesting milk; (3) bacteria associated with amino acid metabolism increase with age, while bacteria associated with carbohydrate metabolism decrease with age, which is likely due to decrease in dietary carbohydrate content (e.g., milk) and increase in dietary protein contents (e.g., fishes) with age; and (4) fish-related bacteria were detected in feces of healthy adults and juveniles. Overall, the gut microbiota of captive Eurasian otters was taxonomically and functionally different by age, which is thought to be attributed to the difference in the diet in their life stages. This study provided baseline information regarding the gut microbiota of Eurasian otters for the first time and contributes to improvement in their management in captivity. Supplementary Information The online version contains supplementary material available at 10.1007/s00203-021-02526-w. |
| Databáze: | OpenAIRE |
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