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ABSTRACT: Metagenomic sequencing of different gut segments of piglets with different growth performance

PROVIDER: PRJNA824986 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR18693200_1.fastq.gz	Fastqsanger.gz
	SRR18693200_2.fastq.gz	Fastqsanger.gz
	SRR18693201_1.fastq.gz	Fastqsanger.gz
	SRR18693201_2.fastq.gz	Fastqsanger.gz
	SRR18693202_1.fastq.gz	Fastqsanger.gz

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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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The response of intestinal microbiota and immunity to increasing dietary iron in piglets

Project description:Iron is an essential metal for both animals and microbiota, and neonates and infants of humans and animals, in general, are at the risk of iron insufficient. However, excess dietary iron usually causes negative impacts on the host and microbiota. This study aimed to investigate over-loaded dietary iron supplementation on growth performance, the distribution pattern of iron in the gut lumen and the host, intestinal microbiota, and intestine gene expression profile of piglets. Sixty healthy weaning piglets were randomly assigned to six groups: fed with diets supplemented with ferrous sulfate monohydrate at the dose of 50ppm (Fe50 group), 100ppm (Fe100 group), 200ppm (Fe200 group), 500ppm (Fe500 group), and 800ppm (Fe800) for three weeks. The results indicated that increasing iron had no effects on growth performance but increased diarrheal risk and iron deposition in intestinal digesta, tissues of intestine and liver, and serum. High iron also reduced serum iron-binding capacity, apolipoprotein, and immunoglobin A. The RNA-sequencing analysis revealed that iron changed colonic gene expression profile, such as interferon gamma-signal transducer and activator of transcription 2 based anti-virus and bacteria gene network. Increasing iron also shifted cecal and colonic microbiota, such as reducing alpha diversity, Clostridiales and Lactobacillus reuteri, and increasing Lactobacillus and Lactobacillus amylovorus. Collectively, this study demonstrated that high dietary iron increased diarrheal incidence, changed intestinal immune response-associated gene expression, and shifts gut microbiota. The results would enhance our knowledge of iron effects on the gut and microbiome in piglets, and further contribute to understanding these aspects in humans.

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Project description:Spatial heterogeneity of gut bacterial across different gut segments of weaned piglets

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Project description:Gut Microbiome Profiling of Weaned Piglets to Evaluate Growth Performance

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Zearalenone-induced aberration in gut microbiome composition and function are associated with degeneration in ovary reserve

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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.

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