| Contrasting gut microbiota in captive Eurasian otters (Lutra lutra) by age | |
|---|---|
| 년도 | 2021 |
| 날짜 | Nov |
| 페이지 / 학회지명 |
203(9):5405-5416 / Archives of Microbiology volume |
| 논문저자 | Yumiko Okamoto 1, Natsumi Ichinohe 2, Cheolwoon Woo 3, Sung-Yong Han 4, Hyeong-Hoo Kim 4, Sakura Ito 5, Chiho Nakamura 6, Junpei Kumura 7, Kentaro Nagaoka 8, Naomichi Yamamoto 9 |
| Link |
https://link.springer.com/article/10.1007/s00203-021-02526-w
187회 연결
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1 Hsinchu Zoo, Hsinchu, 300, Taiwan. 2 Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, 183-0054, Japan. 3 Department of Environmental Health Science, Graduate School of Public Health, Seoul National University, Seoul, 08826, South Korea. 4 Korean Otter Research Center, Hwacheon, 24135, South Korea. 5 Yokohama Zoological Gardens ZOORASIA, Yokohama, Kanagawa, 241-0001, Japan. 6 Aquamarine Fukushima, Marine Science Museum, Iwaki, Fukushima, 971-8101, Japan. 7 Laboratory of Veterinary Anatomy, College of Veterinary Medicine, Seoul National University, Seoul, 08826, South Korea. 8 Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, 183-0054, Japan. nagaokak@cc.tuat.ac.jp. 9 Department of Environmental Health Science, Graduate School of Public Health, Seoul National University, Seoul, 08826, South Korea. nyamamoto@snu.ac.kr. Abstract 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. Keywords: 16S rRNA gene; Ex situ conservation; Gastrointestinal tract; Microbiome; Microflora; Near threatened species. |
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