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Số người truy cập: 86,506,276

Tác giả hoặc Nhóm tác giả: J. B. Clayton, D. Knights, H. Huang, L. T. Ha, T. V. Bui, T. Nadler, M. V. Vo, D. A. Travis and T. J.
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Nơi đăng: 25th Congress of International Primatological Society, August 11-16, 2014. Meeting the Challenges of Conserving Primate Diversity
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; Số: 25th;Từ->đến trang: oral presentation;Năm: 2014
Lĩnh vực: Tự nhiên; Loại: Báo cáo; Thể loại: Quốc tế
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Red-shanked doucs (Pygathrix nemaeus) and other colobines possess specialized gastrointestinal systems similar to ruminants. They utilize both fore- and hindgut fermentation to meet their energetic demands. Maintenance of captive populations has been largely unsuccessful. Improving captive conditions is hindered by critical gaps in our understanding of their natural diet and the enteric microbial adaptations that facilitate the digestive process. We used the douc as a model system to study the relationships between dietary composition and microbial community activity within the gastrointestinal tract. Fecal samples from 7 wild and 27 captive red-shanked doucs were collected between 2012-2013 from Son Tra Nature Reserve (Vietnam) and 3 captive facilities. Human data suggest that shifts in proximal gut microbiota are reflected in feces. We measured gut microbiome composition using 16S rRNA sequencing, and metabolic potential of their gut microbiota using shotgun metagenomic sequencing. Feeding behaviors of wild doucs were surveyed using focal sampling. Foraged plant species were collected and analyzed for nutrient content. Dietary records, including nutritional data, were provided by the captive facilities. Statistical analyses were performed to identify correlations between diet, gut microbiome, and animal status (captive vs. wild). We identified microbial biomarkers of douc nutritional health, and established the douc as a model for studying the gut microbial component of colobine evolution. This study was carried out in accordance with relevant institutional and governmental regulations.
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