RNA sequencing data of piglet intestinal tissue following different dietary treatments
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ABSTRACT:
ORGANISM(S): Sus scrofa
PROVIDER: GSE281198 | GEO | 2024/12/01
REPOSITORIES: GEO
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Project description:The common practise of artificially rearing some lambs from prolific meat breeds of sheep constitutes a welfare issue due to increased mortality rates and negative health issues. In this multidisciplinary study, we investigated the possible short and mid-term advantages of artificially feeding fresh ewe’s milk instead of commercial milk replacer on lambs’ growth, health and welfare. Romane lambs were either separated from their mothers on D3 and fed with Lacaune ewes’ milk (LAC, n=13) or milk replacer (REP, N=15), or they were reared by their mothers (MOT, n=15). On D45, they were weaned, gathered in single sex groups until the end of the study on D150. Lamb performance and biomarkers of overall health were assessed by measuring: growth, dirtiness of the perianal area, enteric pathogens in the faeces, total antioxidant status and redox status assessed by plasma reduced (GSH)/oxidized (GSSG) glutathione ratio, and immune response after vaccination against chlamydiosis. As an exploratory approach, blood cell transcriptomic profiles were also investigated. Last, Qualitative Behaviour Assessment was performed as an integrated welfare criteria. LAC and REP never differed in their average daily gain but grew less than MOT lambs in the early suckling period and just after weaning. No effect was detected afterwards. On D30, LAC and REP lambs had lower total antioxidant and higher redox status than MOT lambs but did not differ among themselves. LAC and MOT had a cleaner perianal area than REP lambs on D21, while faecal pathogen infection did not vary between the treatment groups. After vaccination, LAC also had a stronger immune response on D90 compared to REP lambs. Transcriptome analysis performed on D150 showed differential gene expression, mainly in relation to inflammatory, immune and cell cycle response, between male lambs of the LAC group and those of the MOT and REP groups. Based on Qualitative Behaviour Assessment, LAC lambs never differed from MOT lambs in their general activity and varied from REP only on D21; REP lambs were always more agitated than MOT lambs. In conclusion, artificial milk feeding impaired early growth rate, health, and emotional state mainly during the milk feeding period and at weaning. Feeding artificially reared lambs with fresh ewe's milk partly mitigated some of the negative effects induced by milk replacer but without achieving the full benefit of being reared by the mother.
2020-11-23 | GSE131763 | GEO
Project description:The objectives of the study were to use RNA-Seq to examine the effect of (i) breed and (ii) gradual weaning, on the whole blood mRNA transcriptome of artificially reared Holstein-Friesian and Jersey calves. The calves were gradually weaned over 14 days (day (d) -13 to d 0) and mRNA transcription was examined one day before gradual weaning was initiated (d -14), one day after weaning (d 1) and 8 days after weaning (d 8). RNA-seq analysis was carried out on RNA extracted from whole blood. Gradual weaning had no effect on gene expression (P>0.05).There were 550 differentially expressed genes at a false discovery rate of 10% and with a â¥1.5-fold change, between Holstein-Friesian and Jersey calves on d -14, 490 on d 1, and 411 on d 8. GOseq/KEGG pathway analysis showed that the cytokine-cytokine receptor interaction pathway and the neuroactive ligand-receptor interaction pathway were over-represented between breeds on all days (P<0.01; Qâ¤0.1). These results demonstrate that the gradual weaning practiced here does not compromise the welfare of artificially-reared dairy calves, evidenced by the lack of expression changes in any genes in response to gradual weaning. These data also suggest differences in cell signalling and immune responses between breeds. Eight Holstein-Friesian and eight Jersey bull calves were group housed indoors and individually fed milk replacer and concentrate using an automatic feeder. Calves were gradually weaned by reducing milk-replacer from 6 litres to 0 litres over 14 days (d) (d -13 to d 0). Calves were blood sampled on d -14, 1, and 8, relative to weaning (d 0). RNA-seq analysis was carried out on RNA extracted from whole blood.
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2019-10-01 | GSE122256 | GEO
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Project description:We show here the transcriptional response in the distal small intestine of piglets fed either normal milk replacer, or milk replacer with added starch.
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Project description:As current bovine pregnancy detection methods are not reliable until at least day 28 post artificial insemination (AI), commercial interest exists for the discovery of novel biomarkers of pregnancy which could reliably detect pregnancy status at or before day 21 of pregnancy. This would allow producers the opportunity to rebreed at the next oestrus event. Therefore, the objective of the present study was to use liquid chromatography tandem mass spectrometry (LC-MS/MS) to perform a global, label-free, proteomics study on (i) whole milk whey and (ii) extracellular vesicle (EV) enriched milk whey samples, from day 21 of pregnancy and day 21 of the oestrous cycle, in order to identify potential protein biomarkers of early pregnancy. The oestrous cycles of 10 dairy cows were synchronised, they went through one (control) oestrous cycle and these cows were artificially inseminated during the following oestrous. These cows were confirmed pregnant by ultrasound scanning. Milk whey samples were collected on day 21 of the oestrous cycle and on day 21 post AI. A Q-Exactive was used to analyse whole milk whey samples and EV enriched milk whey samples by LC-MS/MS and subsequent analyses of the label-free quantitative data was performed in MaxQuant and Perseus. Four proteins (APOB, SPADH1, PLIN2 and LPO) were differentially expressed between the proteomes of whole milk whey from day 21 of pregnancy and day 21 of the oestrous cycle (P<0.05). Ten proteins (PIGR, PGD, QSOX1, MUC1, SRPRA, MD2, GAPDH, FOLR1, GPRC5B and HHIPL2) were differentially expressed between the proteomes of milk whey from day 21 of pregnancy and day 21 of the oestrous cycle (P<0.05). These proteins are potential milk whey biomarkers of early pregnancy; however, the small fold change differences in their abundance between samples obtained during early pregnancy and during oestrous will restrict their use in a pregnancy diagnosis test.
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2021-09-09 | PXD022702 | Pride
Project description:We have reported that microRNAs are present in human, bovine, and rat milk whey. Milk whey miRNAs were resistant to acidic condition and to RNase. Thus, milk miRNAs were thought to be present packaged into membrane vesicles like exosome. However, body fluid miRNAs have been reported that there are in different forms. To clarify which miRNAs species are exist in exosome and which species are exist in another form, we used bovine raw milk and purified total RNA from exosome fraction and ultracentrifugated supernatant fraction, and analyzed by miRNA microarray.
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