DIET INFLUENCES THE ACCUMULATION OF SHORT-CHAIN FATTY ACIDS ASSOCIATED WITH THE GUT MICROBIOTA IN THE GRASS CARP (CTENOPHARYNGODON IDELLUS) HINDGUT
文献类型： 外文期刊
作者： Li, Z. F. 1 ; Xie, J. 1 ; Yu, E. M. 1 ; Wang, G. J. 1 ; Zhang, X. K. 3 ; Yu, D. G. 1 ; Zhang, K. 1 ; Gong, W. B. 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Key Lab Trop & Subtrop Fishery Resource Applicat, Pearl River Fisheries Res Inst, 1 Xingyu Rd, Guangzhou 510380, Guangdong, Peoples R China
2.Guangdong Ecol Remediat Aquaculture Pollut Res Ct, Guangzhou 510380, Guangdong, Peoples R China
3.Anqing Normal Univ, Res Ctr Aquat Organism Conservat & Water Ecosyst, Anqing 246011, Anhui, Peoples R China
关键词： aquaculture; carbohydrate fermentation; cellulose; high-throughput sequencing; microbial metabolism
期刊名称：APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH （ 影响因子：0.711； 五年影响因子：0.796 ）
ISSN： 1589-1623
年卷期： 2019 年 17 卷 6 期
页码：
收录情况： SCI
摘要： Diet changes the composition and function of the gut microbiota (GM). Short-chain fatty acids (SCFAs) are mainly produced through carbohydrate fermentation by the GM. It remains unclear whether changing the diet influences the accumulation of SCFAs in the grass carp (Ctenopharyngodon idellus) gut. To address this question, we compared SCFA accumulation with GM changes in the hindgut contents of grass carp in groups fed hybrid giant napier (Pennisetum sinese Roxb, HG), formula feed (FG), and broad bean (Vicia faba, BG). Our results showed that diet significantly influenced the SCFA concentrations in the hindgut of grass carp. By eliminating the influences of dietary SCFA, acetate and total SCFA accumulation in the hindgut of grass carp turned out to be positively associated with dietary cellulose contents. Most of the enriched bacterial biomarkers in the HG group that consumed the most dietary cellulose were SCFA-producing bacteria. These results implied that diet could regulate the relative abundances of potential SCFA-producing bacteria and SCFA accumulation in the grass carp hindgut. These findings shed light onto GM functions related to SCFA production and associative functions between SCFAs and the GM of grass carp.
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