Dietary energy level affects the composition of cecal microbiota of starter Pekin ducklings

Jun-Qiang Liu, Yan-Hong Wang, Xing-Tang Fang, Ming Xie, Yun-Sheng Zhang, Shui-Sheng Hou, Hong Chen, Guo-Hong Chen and Chun-Lei Zhang
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Jun-Qiang Liu: Institute of Cellular and Molecular Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, P.R. China
Yan-Hong Wang: Institute of Cellular and Molecular Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, P.R. China
Xing-Tang Fang: Institute of Cellular and Molecular Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, P.R. China
Ming Xie: Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, P.R. China
Yun-Sheng Zhang: Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, P.R. China
Shui-Sheng Hou: Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, P.R. China
Hong Chen: Institute of Cellular and Molecular Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, P.R. China
Guo-Hong Chen: College of Animal Science and Technology, Yangzhou University, Yangzhou, P.R. China
Chun-Lei Zhang: Institute of Cellular and Molecular Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, P.R. China

Czech Journal of Animal Science, 2018, vol. 63, issue 1, 24-31

Abstract: In this study, we evaluated the phylogenetic diversity of the cecal microbiota of 3-week-old ducklings fed three diets differing in metabolizable energy. The contents of the ceca were collected from ducklings of different groups. The ceca bacterial DNA was isolated and the V3 to V4 regions of 16S rRNA genes were amplified. The amplicons were subjected to high-throughput sequencing to analyze the bacterial diversity of different groups. The predominant bacterial phyla were Bacteroidetes (~65.67%), Firmicutes (~17.46%), and Proteobacteria (~10.73%). The abundance of Bacteroidetes increased and that of Firmicutes decreased with increasing dietary energy level. The diversity decreased (Simpson diversity index and Shannon diversity index) with the increase in dietary energy level, but the richness remained constant. Notably, Brachyspira bacteria were detected with a very high relative abundance (4.91%) in ceca of ducks fed a diet with 11.30 MJ/kg metabolizable energy, suggesting that low energy content may affect their colonization in cecum.

Keywords: duck; bacterial diversity; dietary energy (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjs:v:63:y:2018:i:1:id:53-2017-cjas

DOI: 10.17221/53/2017-CJAS

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