Bovine metagenome
Ontology highlight
ABSTRACT:
REPOSITORIES: ENA
Similar Datasets
Project description:2013 Summer Nebraska Cattle Fecal 16S Raw sequence reads
| PRJNA309245 | ENA
Project description:The nasopharyngeal microbiota of healthy cattle vs. cattle diagnosed with BRD in a commercial feedlot setting was compared using a high-density 16S rRNA microarray (Phylochip). Nasopharyngeal samples were taken from both groups of animals (n=5) at feedlot entry (day 0) and >60 days later.
2015-06-21 | E-MTAB-3430 | biostudies-arrayexpress
Project description:<p>Heat stress is an important issue in dairy cattle feeding management affecting summer health and economic efficiency. In recent years, global climate change has led to an increase in atmospheric CO2 content and average daily temperature, making heat stress a major challenge in dairy farming. This experiment combined 16S rDNA sequencing, metagenomic sequencing and metabolomic analysis. In this experiment, 10 cows each of growing heifers, heifers and lactating cows were selected for sample collection in April and August. Ruminal fluid was collected and filtered through gauze, which was immediately transferred to liquid nitrogen prior to macrogenomic, 16S rDNA sequencing and metabolomic analyses.</p>
2022-08-11 | MTBLS5132 | MetaboLights
Project description:Heat stress affects oocyte developmental competence and is a major cause of reduced fertility in heat stressed cattle. Negative effects of heat stress on the oocyte have been observed at morphological, biochemical and developmental levels. However, the mechanisms by which heat stress affects the oocyte at the transcriptional and epigenetic levels remain to be further elucidated. Here we aimed to investigate the effect of heat stress on oocyte quality, transcriptomic profiles and DNA methylation of oocytes collected through the transition from spring to summer under Louisiana conditions. Summer heat resulted in a lower number of high quality oocytes obtained compared to the spring season. There was no difference in maturation rates of oocytes collected during spring as compared to summer. RNA sequencing analysis showed that a total of 212 and 93 genes were differentially expressed as a result of heat stress at the GV and MII oocytes, respectively. Five common genes (E2F8, GATAD2B, BHLHE41, FBXO44, and RAB39B) were significantly affected by heat in both GV and MII oocytes. A number of pathways were also influenced by heat stress including glucocorticoid biosynthesis, apoptosis signaling, and HIPPO signaling in GV oocytes, and Oct4 pluripotency, Wnt/beta-catenin signaling, and melatonin degradation I in MII oocytes, respectively. In addition, fluorescent immunocytochemistry analysis showed no difference in global levels of DNA methylation and DNA hydroxymethylation at either the GV or MII stage between spring and summer oocytes. The results of this study contribute to a better understanding of the effect of heat stress on the molecular mechanisms altered in bovine oocytes.
2021-04-27 | GSE166413 | GEO
Project description:respiratory tract and joint microbiota of cattle
| PRJNA788973 | ENA
Project description:Respiratory microbiome in feedlot cattle Raw sequence reads
| PRJNA361415 | ENA
Project description:Perinatal intestinal microbiota in cattle
| PRJNA428605 | ENA