title: Cassava foliage affects the microbial diversity of Chinese indigenous geese caecum using 16S rRNA sequencing.
abstract: Geese are extremely adept in utilizing plant-derived roughage within their diet. However, the intestinal microbiome of geese remains limited, especially the dietary effect on microbial diversity. Cassava foliage was widely used in animal feed, but little information is available for geese. In this study, the geese were fed with control diet (CK), experimental diet supplemented with 5% cassava foliage (CF5) or 10% (CF10) for 42 days, respectively. The cecal samples were collected after animals were killed. High-throughput sequencing technology was used to investigate the microbial diversity in the caecum of geese with different dietary supplements. Taxonomic analysis indicated that the predominant phyla were distinct with different dietary treatments. The phyla Firmicutes (51.4%), Bacteroidetes (29.55%) and Proteobacteria (7.90%) were dominant in the CK group, but Bacteroidetes (65.19% and 67.29%,) Firmicutes (18.01% and 17.39%), Proteobacteria (8.72% and 10.18%), Synergistete (2.51% and 1.76%) and Spirochaetes (2.60% and 1.46%) were dominant in CF5 and CF10 groups. The abundance of Firmicutes was negatively correlated with the supplementation of cassava foliage. However, the abundance of Bacteroidetes and Proteobacteria were positively correlated with the supplementation of cassava foliage. Our study also revealed that the microbial communities were significantly different at genus levels. Genes related to nutrient and energy metabolism, immunity and signal transduction pathways were primarily enriched by the microbiome.
authors.affiliation: Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, Hainan, China.
authors.forename: Mao
authors.initials: M
authors.lastname: Li
authors.affiliation: Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, Hainan, China.
authors.forename: Hanlin
authors.initials: H
authors.lastname: Zhou
authors.affiliation: College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China.
authors.forename: Xiangyu
authors.initials: X
authors.lastname: Pan
authors.affiliation: Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, Hainan, China.
authors.forename: Tieshan
authors.initials: T
authors.lastname: Xu
authors.affiliation: Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, Hainan, China.
authors.forename: Zhenwen
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Institute of Tropical Agriculture and Forestry, Hainan University, Danzhou 571737, Hainan, China.
authors.forename: Xuejuan
authors.initials: X
authors.lastname: Zi
authors.affiliation: College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Jiang
mesh_terms: D000821:Animal Feed; D000818:Animals; D058448:Biota / Q000187:drug effects*; D002432:Cecum / Q000382:microbiology*; D016000:Cluster Analysis; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D004032:Diet / Q000379:methods*; D005777:Geese / Q000382:microbiology*; D002365:Manihot; D056186:Metagenomics; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D012336:RNA, Ribosomal, 16S