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ABSTRACT: gut microbiota of weaned piglets

PROVIDER: PRJNA1144829 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR30197270_1.fastq.gz	Fastqsanger.gz
	SRR30197270_2.fastq.gz	Fastqsanger.gz
	SRR30197271_1.fastq.gz	Fastqsanger.gz
	SRR30197271_2.fastq.gz	Fastqsanger.gz
	SRR30197272_1.fastq.gz	Fastqsanger.gz

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Transcription profiling of piglet ileal tissues to assess the impact of environment on microbial diversity and global transcriptional responses in the developing gut

Project description:The study investigated the impact of environment on the composition of the gut microbiota and mucosal immune development and function at gut surfaces in early and adult life. Piglets of similar genotype were reared in indoor and outdoor environments and in an experimental isolator facility. Mucosa-adherent microbial diversity in the pig ileum was characterized by sequence analysis of 16S rRNA gene libraries. Host-specific gene responses in gut ileal tissues to differences in microbial composition were investigated using Affymetrix microarray technology and Real-time PCR. Experiment Overall Design: Animals were reared on the sow at an outdoor or indoor facility. Additional piglets from the indoor facility were transferred to individual isolator units at 24 hours of age, and given a daily dose of antibiotic cocktail for the duration of the study. Piglets were weaned at day 28. From day 29 onwards, piglets were fed creep feed ad libitum. Ileal tissue samples were excised from N=6 piglets per group at day 5, 28 and 56.

2009-12-05 | E-GEOD-15256 | biostudies-arrayexpress

Capsulized fecal microbiota transportation ameliorates post-weaning diarrhea through modulating the gut microbiota in piglets

Project description:Early-weaning-induced stress causes diarrhea, thereby reduces growth performance of piglets. Gut bacterial dysbiosis emerges as a leading cause of post-weaning diarrhea. The present study was aimed to investigate the effect of capsulized fecal microbiota transportation (FMT) on gut bacterial community, immune response and gut barrier function of weaned piglets. Thirty-two were randomly divided into two groups fed with basal diet for 21 days. Recipient group was inoculated orally with capsulized fecal microbiota of health Tibetan pig daily morning during whole period of trial, while control group was given orally empty capsule. The results showed that the F/G ratio, diarrhea ratio, diarrhea index, and histological damage score of recipient piglets were significantly decreased. FMT treatment also significantly increased the colon length of piglets. Furthermore, the relative abundances of Firmicutes, Euryarchaeota, Tenericutes, Lactobacillus, Methanobrevibacter and Sarcina in colon of recipient piglets were increased, and the relative abundances of Campylobacter, Proteobacteria, and Melainabacteria were significantly decreased compared with control group.

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Expression data of ileal mucosa in developing piglets

Project description:The transcriptome changes of the ileal mucosa in suckling piglets during early postnatal life were analysed to contribute to the knowledge of a pig’s gut development. In addition, the ileal transcriptome of suckling piglets was compared with that of age-matched weaned piglets (weaned at the age of 21 days) to elucidate the effect of weaning on the developing gut. DNA microarray was used to analyse the change of transcriptome profiles and biological pathways in porcine ileum that occurred during the developmental or the weaning process.

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Project description:gut microbiota of pre-weaned piglets

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Effects of short distance transportation on physiological indexes, intestinal morphology, microbial community and transcriptome of jejunum in Weaned Piglets

Project description:To investigate the effect of short distance transport on jejunal tissueof weaned piglets, We then performed gene expression profiling analysis using data obtained from RNA-seq in jejunal tissues of weaned piglets after transport and without transport

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Expression data from pig (Sus Scrofa) ileum tissue from animals receiving different diets at 5 days after weaning

Project description:Weaning is a very critical period for piglets, typically accompanied by lower feed intake, weight loss after weaning and increased mortality. At weaning, piglets are exposed to many stressors, such as loss of mothering, mixing with other litters, end of lactational immunity, and a change in their environment and gut microbiota. After weaning, morphological and histological changes occur in the small intestine of piglets producing a rapid change of feeding regime which is critical for the immature digestive system. Sixteen female piglets were weaned to assess the effect of sorbic acid supplementation on the small intestine tissue transcriptome. At weaning day (T0), 4 piglets were sacrified and tissue samples collected. The remaining 12 piglets were weighted and randomly assigned to different post weaning (T5) diets. Diet A (n=6) contained 5 g/kg of sorbic acid. Diet B (n=6) is the same as Standard diet. Total RNA was isolated from ileum samples to be analyzed using the a CombiMatrix CustomArrayTM 90K platform . Even though diet had no detectable effect during the first 5 days after weaning, outcomes from this study highlighted some of the response mechanisms to the stress of weaning occurring in the piglet gut. A total of 205 differentially expressed genes were used for functional analysis using bioinformatics through BLAST2GO, Ingenuity Pathway Analysis 8.0, and the Dynamic Impact Aproach (DIA). Bioinformatics analysis revealed that Apoptosis, RIG-I-like and NOD-like receptor signaling were altered as a result of weaning. Results suggest that immune and inflammatory responses were activated and likely are a cause of small intestine atrophy as revealed by a decrease in villus height and villus/crypt ratio. Keywords: weaning, gut, gene expression, sorbic acid, microarray analysis

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Human milk oligosaccharide degradation by a defined consortium of the infant gut microbiota.

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Suckling piglets: Control vs. weaned piglets

Project description:Transcriptional profiling of 25d old piglets comparing control untreated suckling jejunum with weaned piglets' jejunum. The goal was to gain new insight into the interaction between weaning and intestinal function.A keen interest is paid in deciphering expression changes of apoptosis or cell cycle control genes. The statistical analysis of gene ontology revealed that most of these altered genes are metabolic-related enzymes and regulators which may involved in the biological regulation, developmental process, and cellular process. Weaning also causes alterations in various immune response pathways. Results likely indicate that weaning induced cell cycle arrest, enhanced apoptosis, and inhibited cell proliferation. Two-condition experiment, suckling control piglets' jejunum vs. weaned piglets' jejunum. Biological replicates: 4 control replicates, 4 weaned replicates.

2014-05-01 | E-GEOD-48050 | biostudies-arrayexpress

Project description:colonic microbiota in weaned piglets

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Project description:Colonic microbiota of weaned piglets

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