GEO DataSets

(Submitter supplied) The objective of this work was to investigate differential gene expression of Charolais (n=90) and Holstein Freisian (n=77) steers divergent in RFI. The primary goal was to uncover genes and pathways associated with feed efficiency. Cattle were subjected to three different 70 day dietary phases. Initally animals were offered a high concentrate phase, termed "High Concentrate 1". Following this phase animals were offered sero grazed grass for 70 days followed by another high concentrate phase known as "High Concentrate 2". more...

Organism:

Bos taurus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19172

90 Samples

Download data: CSV

(Submitter supplied) The selection of cattle with high feed efficiency is of paramount importance with regard to reducing feed costs in the beef industry. Developing predictive biological markers specifically for improved feed efficiency is an attractive alternative to direct measurement on large numbers of animals.Evidence is provided that, effects of RFI on gene expression in muscle of beef cattle are not consistent across breed type or dietary phase. more...

Organism:

Bos taurus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19172

111 Samples

Download data: TAB

(Submitter supplied) The study investigated gene expression patterns in liver tissue to understand the biological functions of genes that are potentially involved in controlling / regulating feed efficiency in Nordic dairy cattle.

Organism:

Bos taurus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19172

38 Samples

Download data: TXT

(Submitter supplied) We functionally analyzed the rumen epithelial transcriptomes from low- and high- feed efficient beef steers to identify differences that might contribute to variation in feed efficiency.

Organism:

Bos taurus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL15749

20 Samples

Download data: TXT

(Submitter supplied) The objective of this study was to identify differentially expressed genes in the liver of steers with divergent Residual Feed Intake (RFI). Methods:In total 50 purebred Angus, 48 purebred Charolais and 158 Kinsella Composite breed steers were tested for individual feed intake using the GrowSafe system for an average period of 70 to 73 days. During the feedlot test animals were fed at ad libitum with a finishing diet composed of 75% barley grain, 20% barley silage and 5% rumensin pellet. more...

Organism:

Bos taurus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19172

60 Samples

Download data: TXT

(Submitter supplied) RNA-seq from backfat tissues were obatained from 22 steers, including Angus (AN; n=8), Charolais (CH; n=6), and Kinsella composite (KC; n=8). In each breed, cattle were classified two groups, i.e. high residual feed intake adjusted for off-test backfat thickness (RFIfat, RFIfat >= 0.5) and low RFIfat (RFIfat <= -0.5). For gene analysis, 46, 39 and 177 differentially expressed (DE) genes were identified in AN, CH and KC, respectively. more...

Organism:

Bos taurus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL23295

22 Samples

Download data: TXT

(Submitter supplied) The selection of cattle with high feed efficiency is of paramount importance with regard to reducing feed costs in the beef industry. Global gene expression patterns in metabolically important tissues can be used to identify genes that are potentially involved in regulating feed efficiency. We identified 5 genes (p<0.001;FDR <0.1) to be differentially expressed in skeletal skeletal muscle between high and low residual feed intake heifers with all 5 transcripts being upregulated in the low residual feed intake phenotype. more...

Organism:

Bos taurus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19172

40 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Sus scrofa

Type:

Expression profiling by array

Platform:

GPL16524

96 Samples

Download data: TXT

(Submitter supplied) Transcriptional profiling in skeletal muscle of 48 pigs (132 days of age) originated from two lines divergently selected for residual feed intake (RFI) : low-RFI pigs (RFIneg), high-RFI pigs (RFIpl). Both lines were offered isocaloric and isoproteic diets with contrasted energy source and nutrients: low fat, low fiber (LF) diet or a high fat, high fiber (HF)diet during 10 weeks. Effects of RFI selection, diet and interaction between diet and line were investigated.

Organism:

Sus scrofa

Type:

Expression profiling by array

Platform:

GPL16524

48 Samples

Download data: TXT

(Submitter supplied) Transcriptional profiling in liver of 48 pigs (132 days of age) originated from two lines divergently selected for residual feed intake (RFI) : low-RFI pigs (RFIneg), high-RFI pigs (RFIpl). Both lines were offered isocaloric and isoproteic diets with contrasted energy source and nutrients: low fat, low fiber (LF) diet or a high fat, high fiber (HF)diet during 10 weeks. Effects of RFI selection, diet and interaction between diet and line were investigated.

Organism:

Sus scrofa

Type:

Expression profiling by array

Platform:

GPL16524

48 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Sus scrofa

Type:

Expression profiling by array

Platform:

GPL16524

144 Samples

Download data: TXT

(Submitter supplied) Transcriptional profiling in peritoneal adipose tissue of 48 pigs (132 days of age) originated from two lines divergently selected for residual feed intake (RFI) : low-RFI pigs (RFIneg), high-RFI pigs (RFIpl). Both lines were offered isocaloric and isoproteic diets with contrasted energy source and nutrients: low fat, low fiber (LF) diet or a high fat, high fiber (HF)diet during 10 weeks. Effects of RFI selection, diet and interaction between diet and line were investigated.

Organism:

Sus scrofa

Type:

Expression profiling by array

Platform:

GPL16524

48 Samples

Download data: TXT

(Submitter supplied) Transcriptional profiling in subcutaneous adipose tissue of 48 pigs aged (132 days of age) originated from two lines divergently selected for residual feed intake (RFI) : low-RFI pigs (RFIneg), high-RFI pigs (RFIpl). Both lines were offered isocaloric and isoproteic diets with contrasted energy source and nutrients: low fat, low fiber (LF) diet or a high fat, high fiber (HF)diet during 10 weeks. Effects of RFI selection, diet and interaction between diet and line were investigated.

Organism:

Sus scrofa

Type:

Expression profiling by array

Platform:

GPL16524

48 Samples

Download data: TXT

(Submitter supplied) The objectives of the current study was to profile miRNA expression in the liver tissue of beef steers and consequently identify differentially expressed miRNAs between efficient and inefficient beef steers. Materials and Methods: In total 50 purebred Angus, 48 purebred Charolais and 158 Kinsella Composite breed steers were tested for individual feed intake using the GrowSafe system for an average period of 70 to 73 days. more...

Organism:

Bos taurus

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL19172

60 Samples

Download data: TXT

(Submitter supplied) The biological mechanisms associated with the residual feed intake in ruminants have been harnessed immensely via transcriptome analysis of liver and ruminal epithelium, however, this concept has not been fully explored using whole blood. We applied whole blood transcriptome analysis and gene set enrichment analysis to identify key pathways associated with divergent selection for low or high RFI in beef cattle. more...

Organism:

Bos taurus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL32030

16 Samples

Download data: CSV

(Submitter supplied) Steer mesenteric fat transcriptome. Evaluation of the naturally occurring transcriptome variation in mesenteric fat among beef steers with divergent gain and feed intake phenotypes.

Organism:

Bos taurus

Type:

Expression profiling by array

Platform:

GPL20768

15 Samples

Download data: CEL, CHP

(Submitter supplied) We reported the bovine liver gene expression database of Polish-HF, Polish-Red and Hereford cattle breeds.

Organism:

Bos taurus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24980

18 Samples

Download data: ZIP

(Submitter supplied) RNA sequencing (RNA-Seq) was performed on rumen papillae from 16 steers with variation in gain and feed intake.

Organism:

Bos taurus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL11153

16 Samples

Download data: TXT

(Submitter supplied) MicroRNAs (miRNAs) are short non-coding RNAs that post-transcriptionally regulate expression of mRNAs in many biological pathways. Here we report comprehensive miRNAs profiles by next-gen deep sequencing in Angus cattle divergently selected for residual feed intake (RFI) and identify miRNAs related to feed efficiency in beef cattle Results: Two microRNA libraries were constructed from pooled RNA extracted from livers of low and high RFI cattle, and sequenced by Illumina genome analyser. more...

Organism:

Bos taurus

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL11153

2 Samples

Download data: TXT

(Submitter supplied) Residual feed intake (RFI) is a measure of feed efficiency, where low RFI denotes high feed efficiency. Caloric restriction (CR) is associated with feed efficiency in livestock species and to human health benefits such as longevity and cancer prevention. We have developed pig lines that differ in RFI and are interested to identify the genes and pathways that underlie feed efficiency. Prepubertal Yorkshire gilts with low RFI (n=10) or high RFI (n=10) were fed ad libitum or at 80% of maintenance for eight days. more...

Organism:

Sus scrofa

Type:

Expression profiling by array

Platform:

GPL3533

40 Samples

Download data: CEL, CHP