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ABSTRACT:
PROVIDER: PRJNA1293903 | ENA |
REPOSITORIES: ENA
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Project description:<p> Introduction: This study aimed to investigate the effects of natural forage from different regions (saline-alkali and non-saline-alkali areas) on the rumen microbiota, muscle metabolites, and meat quality of Tibetan sheep. </p><p> Methods: Targeted and non-targeted metabolomics were used to comprehensively analyze both pasture and meat quality, metabolites. Additionally, 16S rDNA sequencing was employed to analyze the rumen microbial community structure of Tibetan sheep.</p><p> Results: The results showed that the natural saline-alkali forage (HG group) had higher protein content, lower fiber content, higher relative feed value, and better quality. Metabolomic analysis revealed significant accumulation of flavonoids and upregulation of amino acid metabolism in the HG group. Additionally, the natural saline-alkali forage significantly increased amino acid deposition in Tibetan sheep muscle, markedly enhanced the redness value (a*), and significantly reduced the yellowness value (b*). Furthermore, the natural saline-alkali forage altered the rumen fermentation patterns in Tibetan sheep, leading to a significant increase in the abundance of F082 and WCHB1-41, while significantly reducing the abundance of Prevotellaceae_UCG-003. Correlation analysis revealed that these microbial taxa were significantly influenced by the natural saline-alkali forage,while also showing significant associations with muscle quality parameters (a*, b*) and metabolites (cysteine, C18:1n9, etc.).</p><p>Discussion: Overall, the natural saline-alkali forage demonstrated superior quality and metabolite content compared to natural non-saline-alkali forage. Furthermore, this saline-alkali forage significantly influenced the abundance of specific rumen microbiota in Tibetan sheep, consequently regulating</p>
2025-07-19 | MTBLS12747 | MetaboLights
Project description:<p>Introduction: This study aimed to investigate the effects of natural forage from different regions (saline-alkali and non-saline-alkali areas) on the rumen microbiota, muscle metabolites, and meat quality of Tibetan sheep. </p><p>Methods: Targeted and non-targeted metabolomics were used to comprehensively analyze both pasture and meat quality, metabolites. Additionally, 16S rDNA sequencing was employed to analyze the rumen microbial community structure of Tibetan sheep.</p><p>Results: The results showed that the natural saline-alkali forage (HG group) had higher protein content, lower fiber content, higher relative feed value, and better quality. Metabolomic analysis revealed significant accumulation of flavonoids and upregulation of amino acid metabolism in the HG group. Additionally, the natural saline-alkali forage significantly increased amino acid deposition in Tibetan sheep muscle, markedly enhanced the redness value (a*), and significantly reduced the yellowness value (b*). Furthermore, the natural saline-alkali forage altered the rumen fermentation patterns in Tibetan sheep, leading to a significant increase in the abundance of F082 and WCHB1-41, while significantly reducing the abundance of Prevotellaceae_UCG-003. Correlation analysis revealed that these microbial taxa were significantly influenced by the natural saline-alkali forage,while also showing significant associations with muscle quality parameters (a*, b*) and metabolites (cysteine, C18:1n9, etc.).</p><p>Discussion: Overall, the natural saline-alkali forage demonstrated superior quality and metabolite content compared to natural non-saline-alkali forage. Furthermore, this saline-alkali forage significantly influenced the abundance of specific rumen microbiota in Tibetan sheep, consequently regulating</p>
2025-07-19 | MTBLS12748 | MetaboLights
Project description:A healthy rumen is crucial for normal growth and improved production performance of ruminant animals. Rumen microbes participate in and regulate rumen epithelial function, and the diverse metabolites produced by rumen microbes are important participants in rumen microbe-host interactions. SCFAs, as metabolites of rumen microbes, have been widely studied, and propionate and butyrate have been proven to promote rumen epithelial cell proliferation. Succinate, as an intermediate metabolite in the citric acid cycle, is a final product in the metabolism of certain rumen microbes, and is also an intermediate product in the microbial synthesis pathway of propionate. However, its effect on rumen microbes and rumen epithelial function has not been studied. It is unclear whether succinate can stimulate rumen epithelial development. Therefore, in this experiment, Chinese Tan sheep were used as experimental animals to conduct a comprehensive analysis of the rumen microbiota community structure and rumen epithelial transcriptome, to explore the role of adding succinate to the diet in the interaction between the rumen microbiota and host.
2023-06-12 | GSE233696 | GEO
Project description:Microbiome DNA from the adhering fraction of a sheep rumen. The RSTs were generated using an improved version of SARST (referred to as iSARST) from the microbiome DNA extracted from the adhering fraction of the rumen content taken from a sheep. The iSARST method is going to be submitted to Nature Biotechnology for publication. Keywords: other
2004-10-15 | E-GEOD-1842 | biostudies-arrayexpress
Project description:<p>Gut microbiota plays a significant role in maintaining the homeostasis of the gut internal environment, and the volatile fatty acids (VFAs) produced by it are the main source of energy utilization for the host. The heart, as a key metabolic organ of the body, its energy metabolism efficiency directly affects the body's tolerance to the hypoxic environment at high altitudes. To reveal the dynamic regulatory relationship between the rumen and the heart of Hu sheep during their response to the high-cold and hypoxic environment, this study conducted transcriptome sequencing on the hearts of Hu sheep and Tibetan sheep, and carried out interaction analysis of the differentially expressed genes with rumen microbiota, VFAs, and metabolites. The results showed that: A total of 616 differentially expressed genes (P＜0.05) were identified in the hearts of sheep of different breeds, among which 437 genes were up-regulated and 179 genes were down-regulated. By comparing with known transcription factors, it was found that genes highly expressed in Hu sheep, such as ATP2A3, NPPB, PDE3A, SLC25A4, and AKT3, were significantly enriched in the cGMP-PKG signaling pathway. In the study of the interaction between rumen microbial genera and heart-related differentially expressed genes, it was found that microbial genera such as Candidatus Saccharimonas and Succiniclasticum had a close positive correlation (P＜0.05) with genes related to cardiac energy metabolism; The interaction analysis between the differentially expressed genes and VFAs showed that acetic acid, propionic acid, butyric acid, and valeric acid participated in the regulation of gene expression in a positive and synergistic manner. WGCNA showed that different metabolite modules were concentrated and enriched in Metabolic pathways and participated in the process of cardiac energy metabolism. In addition, metabolites such as Arachidonate, Adenine, and 6-Keto-prostaglandin F1alpha had a positive regulatory relationship with SLC25A4 and AKT3 and were involved in cardiac energy metabolism. This study revealed that Hu sheep can conduct directional regulation of cardiac metabolism through rumen microbiota and metabolites to cope with the hypoxic stress at high altitudes, providing an important reference for a deeper understanding of the response mechanism of Hu sheep to the hypoxic environment at high altitudes.</p>
2025-09-11 | MTBLS12982 | MetaboLights
Project description:Microbiome DNA from the adhering fraction of a sheep rumen. The RSTs were generated using an improved version of SARST (referred to as iSARST) from the microbiome DNA extracted from the adhering fraction of the rumen content taken from a sheep. The iSARST method is going to be submitted to Nature Biotechnology for publication. Keywords: other
2004-10-15 | GSE1842 | GEO