title: Microbial profiles of liquid and solid fraction associated biomaterial in buffalo rumen fed green and dry roughage diets by tagged 16S rRNA gene pyrosequencing.
abstract: The microbiome of buffalo rumen plays an important role in animal health and productivity. The rumen bacterial composition of both liquid and solid fraction was surveyed using pyrosequencing of the 16S rRNA gene. Sequences were analyzed using taxonomy-dependent clustering methods and revealed that the dominant ruminal bacteria shared by samples belonged to phyla Bacteroidetes, Firmicutes, Fibrobacteres and Proteobacteria. The core rumen microbiome of the rumen consisted of 10 phyla, 19 classes, 22 orders and 25 families. However, the relative abundance of these bacterial groups was markedly affected by diet composition as well as in type of biomaterial. In animals fed with a green and dry roughage diet, the cellulolytic bacteria, Ruminococcaceae, and Fibrobacteraceae was found in highest abundance in all biomaterials which reflected the need for enhanced fiber-digesting capacity in buffalo. The polysaccharide-degrading Prevotellaceae bacteria were most abundant in buffalo rumen. In taxonomic comparison of rumen bacteria, about 26 genera were differentially abundant among liquid and solid fraction of ruminal fluid. These results highlight the buffalo ruminal microbiome's ability to adapt to feed with different composition.
authors.affiliation: Department of Animal Biotechnology, Anand Agricultural University, Anand, India, kmsingh18@gmail.com.
authors.forename: K M
authors.initials: KM
authors.lastname: Singh
authors.forename: T K
authors.initials: TK
authors.lastname: Jisha
authors.forename: Bhaskar
authors.initials: B
authors.lastname: Reddy
authors.forename: Nidhi
authors.initials: N
authors.lastname: Parmar
authors.forename: Anand
authors.initials: A
authors.lastname: Patel
authors.forename: A K
authors.initials: AK
authors.lastname: Patel
authors.forename: C G
authors.initials: CG
authors.lastname: Joshi
mesh_terms: D000818:Animals; D002020:Buffaloes / Q000382:microbiology*; D004032:Diet; D004043:Dietary Fiber; D006358:Hot Temperature; D064307:Microbiota / Q000235:genetics*; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics*; D012417:Rumen / Q000382:microbiology*; D017422:Sequence Analysis, DNA / Q000379:methods*; D013223:Statistics as Topic
chemical_list: D004043:Dietary Fiber; D012336:RNA, Ribosomal, 16S