Journal
JOURNAL OF DAIRY SCIENCE
Volume 101, Issue 7, Pages 5758-5769Publisher
ELSEVIER SCIENCE INC
DOI: 10.3168/jds.2017-13860
Keywords
camel milk; gut microbiome; probiotic; high-throughput sequencing
Funding
- Fundamental Research Funds for the Central Universities [GK201603097, GK201703063]
- Major Transformation of Scientific and Technological Achievements Special Program of Shaanxi Province, China [2016KTG01-02]
- Science and Technology Research and Development Program of Shaanxi Province, China [2016NY-207]
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Bactrian camel milk has become popular in the market as an important source of nutrients with diverse functional effects. In this study, the influence of Bactrian camel milk on the gut microbiota of mice was studied using metagenomic-based sequencing of the V3 and V4 hypervariable regions of the 1.65 rRNA gene. Bioinformatics analysis showed that Firmicutes and Bacteroidetes were the predominant phyla, accounting for more than 80% of the bacteria present. At the genus level, Allobaculum, Akkermansia, Romboutsia, Bifidobacterium, and Lactobacillus were most abundant in the gut microbiota; of these, Allobaculum and Akkermansia were the predominant genera, representing 40.42 and 7.85% of all the bacteria present, respectively. Camel milk was found to reduce relative abundance of Romboutsia, Lactobacillus, Turicibacter, and Desulfovibrio (decreased by 50.88, 34.78, 26.67, and 54.55%, respectively) in the gut microbiota compared with the control. However, some genera such as Allobaculum, Akkermansia, and Bifidobacterium in the gastrointestinal flora increased in abundance in the presence of camel milk; these genera are correlated with beneficial effects for organisms. Our research suggests that the gut microbiota should be taken into account when conducting functional studies on camel milk, and this work provides a useful foundation for further study on functions of camel milk.
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