Ontology highlight
ABSTRACT:
PROVIDER: PRJNA747750 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR15183200_1.fastq.gz | Fastqsanger.gz | |||
| SRR15183200_2.fastq.gz | Fastqsanger.gz | |||
| SRR15183201_1.fastq.gz | Fastqsanger.gz | |||
| SRR15183201_2.fastq.gz | Fastqsanger.gz | |||
| SRR15183202_1.fastq.gz | Fastqsanger.gz |
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Project description:To investigate effects of long-term intake of RPS on gene expression in the colon and liver of pigs,thirty-six Duroc × Landrace × Large White growing barrows were randomly allocated to corn starch (CS) and RPS groups. Each group consisted of six replicates (pens), with three pigs per pen. Pigs in the CS group were offered a corn/soybean-based diet, while pigs in the RPS group were put on a diet in which 230 g/kg (growing period) or 280 g/kg (finishing period) purified corn starch was replaced with purified RPS during a 100-day trial. Liver transcriptomic results showed that the expression of CD36, CPT1B and ACADM was down-regulated, while AGPAT4, GPAT, FABP1 and FABP3 were up-regulated by the RPS diet, indicating a decrease in fatty acid intake and synthesis, and an increase in fatty acid oxidation and glycerophospholipid synthesis.Analysis of the colonic transcriptome profiles revealed that the RPS diet changed the colonic expression profile of the host genes mainly involved in immune response pathways. RPS significantly increased proinflammartory cytokine IL-1β gene expression and suppressed genes involved in lysosome.
2015-07-25 | GSE71305 | GEO
Project description:Low protein diets supplied during the growing period of pigs can diminish their growth rate and increase the intramuscular fat (IMF) content which affects the sensorial and technological characteristics of the traits. In the present study, the effects of a low protein diet supplied during the growing diet of Duroc x Iberian crossbred pigs on several phenotypic traits and liver and longissimus dorsi transcriptome, were analysed 20 days after the differential treatment was started (EARLY) and at the end of it (FINAL). A total of 20 crossbred pigs were assigned to two different dietary treatments during the growing period: a control diet (C) and a low protein diet (LP) with the same energy and lower levels of raw protein (11%) and lysine (0.60%). The transcriptomes of liver and longissimus dorsi were quantified through RNAseq. A total of 134 differentially expressed annotated genes and new isoforms (DEGs) between C and LP diets in liver of EARLY animals; 480 DEGs in liver of LATE animals, and 128 DEGs and 68 DEGs in longissimus dorsi of EARLY and LATE animals were detected. The functional analyses revealed that low protein diet diminishes the expression in liver of genes codifying for proteins involved in immune system both in EARLY and LATE animals, affects the expression of genes involved in cholesterol homeostasis in liver and in the energy process and growth in longissimus dorsi. Pigs fed with LP diet had not higher IMF content than C ones, although some lipogenesis genes such as FASN, SCD or SREBF1 were higher expressed on their liver. A low protein diet supplied during growing period affects multiple biological process that could compromise the immune and energy state of the Duroc x Iberian crossbred pigs. These results point out that we should be very cautious before implementing this type of regime in Duroc x Iberian pigs.
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Project description:To investigate effects of long-term intake of RPS on gene expression in the colon and liver of pigs,thirty-six Duroc × Landrace × Large White growing barrows were randomly allocated to corn starch (CS) and RPS groups. Each group consisted of six replicates (pens), with three pigs per pen. Pigs in the CS group were offered a corn/soybean-based diet, while pigs in the RPS group were put on a diet in which 230 g/kg (growing period) or 280 g/kg (finishing period) purified corn starch was replaced with purified RPS during a 100-day trial. Liver transcriptomic results showed that the expression of CD36, CPT1B and ACADM was down-regulated, while AGPAT4, GPAT, FABP1 and FABP3 were up-regulated by the RPS diet, indicating a decrease in fatty acid intake and synthesis, and an increase in fatty acid oxidation and glycerophospholipid synthesis.Analysis of the colonic transcriptome profiles revealed that the RPS diet changed the colonic expression profile of the host genes mainly involved in immune response pathways. RPS significantly increased proinflammartory cytokine IL-1? gene expression and suppressed genes involved in lysosome. Thirty-six Duroc × Landrace × Large White growing barrows (70 days of age, 23.78 ± 1.87 kg) were randomly allocated to two groups, each group consisting of three pigs per pen, and six replicates. Pigs in the control group were offered a corn/soybean-based diet, while 230 g/kg purified corn starch (CS) was replaced with purified RPS in the RPS diet group. Diets were formulated according to the nutrient requirements of the National Research Council (1998). When animals reached the age of 120 days, diets were adapted to the nutrient requirements of the animals (finishing diet) and the amount of purified starch increased to 280 g of CS or RPS per kilogram of feed. Pigs had unlimited access to feed and water throughout the experimental period, which consisted of two 50-day trials in which the pigs consumed the growing diet (days 0-50) and finishing diet (days 51-100), respectively. On day 100, one pig from each replicate that met the target slaughter weight (105 to 110 kg) was slaughtered. The liver and colonic mucosa tissues were collected and preserved in liquid nitrogen for gene expression analysis.
2015-07-25 | E-GEOD-71305 | biostudies-arrayexpress