Rumen Bacterial Diversity of Water Buffalo (Bubalus bubalis) as Influenced by Concentrate Levels
文献类型: 外文期刊
作者: Yang, Chengjian;Zou, Caixia;Liang, Xin;Wei, Shengju;Li, Shulu;Liang, Xianwei;Yang, Bingzhuang;Luo, Hua
作者机构:
关键词: water buffalo;bacterial diversity;rumen;454 GS FLX pyrosequencing
期刊名称: BUFFALO BULLETIN
ISSN: 0125-6726
年卷期: 2013 年 32 卷
页码:
收录情况: SCI
摘要: In this study, high-throughput 16S rRNA gene-based pyrosequencing was used to investigate the rumen bacterial communities of water buffaloes fed different levels of concentrate. Six adult female water buffaloes were divided into two groups according to concentrate levels. Accordingly concentrate levels were assigned as low concentrate level (1.5 kg per day), and high concentrate level (2.5 kg per day), with forage ad libitum. Samples were taken from each water buffalo before morning feeding by stomach tube attached to hand air pump. Characterization of bacteria was achieved using V1-V3 hypervariable regions of the 16S rRNA gene by a 454 GS FLX PLUS system on six samples. Results showed that 21 and 25 different bacterial phyla were identified in the ruminal microbiota of water buffaloes fed low concentrate level and highconcentrate level, respectively. For whatever the contrite level, rumen bacterial community was dominated by Firmicutes and Bacteroidetes. There were 113 genera of bacterial populations commonly shared by all six samples, including genera of Lachnospiraceae, Ruminococcaceae, Prevotella, Butyrivibrio, Succiniclasticum etc., indicating that there is a core microbial community in the microbial populations of water buffaloes. Lachnospiraceae, Prevotellaceae, Ruminococcaceae families were highly present and were clearly affected by concentrate levels. The higher abundance of Lachnospiraceae and the lower abundance of Ruminococcaceae and Veillonellaceae were found in high concentrate level group. In conclusion, results of this study provided insights into the bacterial community structure and diversity of water buffalo and the bacterial taxa of water buffalo appear to be diet related.
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