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No adverse effect of a parental low protein/high carbohydrate diet on their offspring, in rainbow trout (muscle)

ABSTRACT: In rainbow trout (Oncorhynchus mykiss), the effect of a paternal and a maternal high carbohydrate-low protein diet was assessed on progeny at long term. To this purpose, two-year old male and female rainbow trout were fed either a control diet or a high carbohydrate/low protein diet for an entire reproductive cycle for females and for 5 months for males. Crossed-fertilizations were carried out in order to obtain 4 groups of offspring. Offspring were fed with a commercial diet until they reached a market size. At this stage, muscle transcriptomes were analysed to detect any effect of the parental diet on offspring metabolism.

ORGANISM(S): Oncorhynchus mykiss

PROVIDER: GSE169002 | GEO | 2021/08/16

REPOSITORIES: GEO

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No adverse effect of a parental low protein/high carbohydrate diet on their offspring, in rainbow trout (liver)

Project description:In rainbow trout (Oncorhynchus mykiss), the effect of a paternal and a maternal "high carbohydrate/low protein" diet was assessed on progeny. To this purpose, two-year old males and females rainbow trout were fed either a control diet or a "high carbohydrate/low protein" diet for an entire reproductive cycle for females and for 5 months for males. Crossed-fertilizations were carried out in order to obtain 4 groups of offspring. Offspring were fed with a commercial diet until they reached a market size. At this stage, hepatic transcriptomes were compared to detect any impact of the parental diet on offspring metabolism.

2021-08-16 | GSE169001 | GEO

Programming of the hepatic lipid metabolism via a parental high carbohydrate low protein diet in rainbow trout

Project description:In rainbow trout (Oncorhynchus mykiss), the effect of a paternal and a maternal high carbohydrate-low protein diet was assessed on progeny at long term. To this purpose, two-year old male and female rainbow trout were fed either a control diet or a high carbohydrate/low protein diet for an entire reproductive cycle for females and for 5 months for males. Crossed-fertilizations were carried out in order to obtain 4 groups of offspring. Offspring were fed with a commercial diet until they reached a market size and were then challenged with a complete plant-based diet for 3 months. After the challenge, hepatic transcriptomes were analysed to detect any effect of the parental diet on offspring metabolism.

2022-07-31 | GSE184632 | GEO

Modulation of energy metabolism and epigenetic landscape in rainbow trout fry by a parental low protein/high carbohydrate diet

Project description:In rainbow trout (Oncorhynchus mykiss), the effect of a paternal and a maternal high carbohydrate/low protein diet was assessed on progeny. To this purpose, two-year old males and females rainbow trout were fed either a control diet or a high carbohydrate/low protein diet for an entire reproductive cycle for females and for 5 months for males. Crossed-fertilizations were carried out in order to obtain 4 groups of offspring. Before the first feeding, whole fry transcriptomes were compared to detect any impact of the parental diet on offspring metabolism.

2021-07-08 | GSE171310 | GEO

Maternal Dietary Choline Levels Cause Transcriptome Shift due to Genotype-by-Diet Interaction in Rainbow Trout (Oncorhynchus mykiss)

Project description:The objective of this study was to identify metabolic regulatory mechanisms affected by choline availability in rainbow trout (Oncorhynchus mykiss) broodstock diets associated with increased offspring growth performance. Three customized diets were formulated to have different levels of choline: (a) 0% choline supplementation (Low Choline: 2065 ppm choline), (b) 0.6% choline supplementation (Medium Choline: 5657 ppm choline), and (c) 1.2% choline supplementation (High Choline: 9248 ppm choline). Six all-female rainbow trout families were fed experimental diets beginning 18 months post-hatch until spawning; their offspring were fed a commercial diet. Experimental broodstock diet did not affect overall choline, fatty acid, or amino acid content in the oocytes (p > 0.05), apart from tyrosine (p ≤ 0.05). Offspring body weights from the High and Low Choline diets did not differ from those in the Medium Choline diet (p > 0.05); however, family-by-diet and sire-by-diet interactions on offspring growth were detected (p ≤ 0.05). The High Choline diet did not improve growth performance in the six broodstock families at final harvest (520-days post-hatch, or dph). Numerous genes associated with muscle development and lipid metabolism were identified, including myosin, troponin C, and fatty acid binding proteins, which were associated with key signaling pathways of lipid metabolism, muscle cell development, muscle cell proliferation, and muscle cell differentiation. These findings indicate that supplementing broodstock diets with choline does regulate expression of genes related to growth and nutrient partitioning but does not lead to growth benefits in rainbow trout families selected for disease resistance.

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Effect of dietary immunostimulation in the portals of entry of rainbow trout after LPS challenge

Project description:Rainbow trout (Oncorhynchus mykiss) were fed during 4 weeks with either a control diet or an immunostimulant diet and then injected with LPS to investigate the effect of dietary immunostimulation in the portals of entry, intestine and gills, using a salmonid-specific microarray platform enriched with immune-related genes. IS-diet feeding significantly changed transcriptomic expression profiles in response to LPS: significant changes in genes and functional GO categories related to remodeling processes and antigen presentation were different for both diets. The results revealed that one of the main effects of IS-diets in trout is the increase of genes involved in antigen recognition and in adaptive immunity. Keywords: gills, intestine, immunostimulats, transcriptomic response, trout

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Metabolic effects of dietary glycerol supplementation in muscle and liver of European seabass and rainbow trout by 1H NMR metabolomics

Project description:The sustainable growth of fish aquaculture will require the procurement of non-marine feed sources. Glycerol is a potential feed supplement whose metabolism may spare the catabolism of dietary amino acids, thereby extending the use of the feed protein to other physiological functions such as growth. In the present study, the effects of dietary glycerol supplementation on the muscle and liver metabolomes of rainbow trout (Oncorhynchus mykiss) and European seabass (Dicentrarchus labrax) were evaluated. Fish juveniles were fed diets with 0%, 2.5%, and 5% glycerol. Muscle and liver aqueous fractions were extracted and 1H NMR spectra were acquired. Metabolite profiles derived from the 1H NMR signals were assessed using univariate and multivariate statistical analyses. The adenylate energy charge was determined in the muscle. For both species, the muscle metabolite profile showed more variability compared to that of the liver and was most perturbed by the 5.0% glycerol diet. For the liver metabolite profile, rainbow trout showed fewer differences compared to European seabass. No differences were observed in energy charge between experimental groups for either species. Thus, rainbow trout appeared to be less susceptible to tissue metabolite perturbations, compared to seabass, when the diet was supplemented with up to 5% glycerol.

2020-02-24 | MTBLS832 | MetaboLights

Remodeling of the Epigenetic Landscape in Rainbow Trout, Oncorhynchus mykiss, Offspring in Response to Maternal Choline Intake

Project description:The objective of this paper was to determine whether shifts in the methylome in rainbow trout (Oncorhynchus mykiss) are correlated with transcriptomic changes during early development in response to maternal dietary choline intake. Three experimental diets were formulated to have different levels of choline: (a) 2065 ppm choline (Low Choline, 0% supplementation), (b) 5657 ppm choline (Medium Choline, 0.6% supplementation), and (c) 9248 ppm choline (High Choline, 1.2% choline supplementation). Six rainbow trout families were fed experimental diets beginning 18 months post-hatch until spawning; their offspring were fed a commercial diet. Reduced representational bisulfite sequencing (RRBS) was utilized to measure genome-wide methylation differences in offspring immediately after hatching. When comparing to the Medium Choline offspring, differential DNA methylation occurred more in the Low Choline offspring than High Choline, especially in genic features like promoters. The differentially methylated CpGs (q ≤ 0.01) were identified evenly between CpG islands and shores in the genome, mostly found in the introns of genes. Genes such as fabp2 and leap2B associated with protein binding, fatty acid binding, DNA binding, and response to bacteria were differentially methylated and detected as differentially regulated genes by previous RNA-seq analysis. Although these findings indicate that levels of dietary choline available in broodstock diets alters offspring DNA methylation; most differentially expressed genes were not associated with differential DNA methylation, suggesting additional mechanisms playing a role in regulating gene expression in response to maternal choline intake.

2024-11-21 | GSE269087 | GEO

Transcriptional profiling of rainbow trout infected with Aeromonas salmonicida

Project description:The rainbow trout (Oncorhynchus mykiss) is one of the most important aquaculture species worlwide. In this study, transcriptional profiling of skin by oligonucleotide microarray was applied to rainbow trout individuals infected with A. salmonicida, to identified enriched genes involved in pathogen response.

2023-11-28 | GSE230658 | GEO

Identification of on/off switch genes in the zebrafish and rainbow trout anterior intestine transcriptome according to nutritional status

Project description:Comparison of transcriptome data in fed and fasted conditions of zebrafish (Danio rerio) and rainbow trout (Oncorhynchus mykiss) anterior intestine using the serial analysis of gene expression (SAGE) method was done in a strategy to identify key regulated genes at the transcript level and to allow the identification of activated/deactivated pathways after feeding.

2018-01-01 | GSE31700 | GEO

Mouse F2 Cross, Carbohydrate Diet, Fat Tissue

Project description:Gene transcription in epididymal fat pads was investigated in an F2 cross of 129S6 x Balb/c mice using Illumina gene expression arrays. Expression data was determined in 5 months old male mice fed a carbohydrate diet. Genotyping data for the F2 offspring used in this study can be found in the file E-MTAB-395.additional.zip under the Browse all available files link (file mouse-f2-chd-genotype.txt added 8th April 2014).

2014-01-20 | E-MTAB-395 | biostudies-arrayexpress

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