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Gene expression profiling of white bass when fed fish meal or fish meal replacement diets

ABSTRACT: Gene expression profiling of white bass when fed fish meal or fish meal replacement diets

PROVIDER: PRJNA909272 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR22549714_1.fastq.gz	Fastqsanger.gz
	SRR22549714_2.fastq.gz	Fastqsanger.gz
	SRR22549715_1.fastq.gz	Fastqsanger.gz
	SRR22549715_2.fastq.gz	Fastqsanger.gz
	SRR22549716_1.fastq.gz	Fastqsanger.gz

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Gene expression profiling of white bass when fed fish meal or fish meal replacement diets

Project description:White bass (Morone chrysops) are a popular sportfish throughout the southern United States, and one parent of the commercially successful hybrid striped bass (M. chrysops x M. saxatilis). Currently, white bass are cultured using diets formulated for other carnivorous fish, such as largemouth bass (Micropterus salmoides) or hybrid striped bass and contain a significant percentage of marine fish meal. Since there are no studies regarding the utilization of alternative proteins in this species, we evaluated global gene expression of white bass fed diets in which fish meal was partially or totally replaced by various combinations of soybean meal, poultry by-product meal, canola meal, soy protein concentrate, wheat gluten, or a commercial protein blend (Pro-Cision). Significant differential expressed genes and gene ontology of pairwise comparisons between control diet and each test diet are presented and discussed.

2024-02-14 | GSE220235 | GEO

Long-term dietary replacement of fish meal and fish oil in diets for rainbow trout: effects on intestinal and hepatic gene expression

Project description:In the context of replacing fish meal and fish oil in feeds for aquaculture, rainbow trout alevins received from first-feeding onwards, one of the three experimental diets: V (100% plant-based), C (mix of FM-FO & plant ingredients) or M (100% FM-FO based). The long term effects of such dietary replacement on the intestinal (mid gut) and hepatic transcriptome were studied in juveniles after a 7-month feeding trial at 7°C.

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Effects of the total replacement of fish meal and fish oil with plant protein and oil sources on the hepatic transcriptome of two European sea bass (Dicentrarchus labrax) sub-families exhibiting different growth potentials on an all plant-based diet

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Project description:Comparison of the hepatic transcriptomes for two half-sib-families of European sea bass fed on vegetable and fish diet. These two half-sib-families exhibit similar growth on fish diet while significantly different on vegetable diet. The aim of the study is to point out the large panel of metabolic and physiological effects induced by total substitution of both fish meal and fish oil in the diets of European sea bass and to reveal physiological characteristics associated to the two half-sib-families. Fish from both two half-sib-families (G and g) were fed a a fish diet (FD) or a vegetable diet (VD) diet for 9 months. Five to eight independent experiments were performed for each experimental groups (G-FD; G-VD; g-FD; g-VD) using different fishes for each experiment.

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Replacement diets in gilthead sea bream

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Project description:The effect of dietary replacement of fish meal with spent brewer’s waste was evaluated by investigating the changes in muscle proteome profile of the Indian major carp Labeo rohita

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Functional genomic analysis of the impact of camelina (Camelina sativa) meal on Atlantic salmon (Salmo salar) distal intestine gene expression and physiology

Project description:Fish were fed a standard fish meal (FM) diet or a diet with partial replacement of FM with solvent extracted camelina meal (CM) (8%, 16% or 24% CM inclusion) during a 16-week feeding trial. A significant decrease in growth performance was seen in fish fed the CM inclusion diets. A 44k oligonucleotide array experiment was used to identify any differentially expressed transcripts in the distal intestine of the fish fed the 24% CM diet compared to the control. The expression level of these genes was validated using quantitative polymerase chain reaction, which was also used to measure transcript expression in the fish fed the 8% CM and 16% CM diets. Histopathological analysis was used to quantify any physical signs in inflammation in the distal intestine of the Atlantic salmon fed the CM-containing diets.

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Project description:The sustainable development of modern aquaculture must rely on a significant reduction of the fish meal (FM) used in aquafeed formulations. However, FM substitution with alternative ingredients in diets for carnivorous fish species often showed reduced nutrient absorption, significantly perturbed metabolisms and histological changes at both hepatic and intestinal level. In the present study, adult rainbow trout (Oncorhynchus mykiss) were fed three different experimental aquafeed formulations. A control diet with higher FM content (27.3%) than two test formulations in which fish meal was substituted with two more sustainable and promising alternatives: insect meal (Hermetia illucens larvae=10.1%, FM=11.6%) and poultry by-products meal (PBM=14.8%; FM=11.7%). Combined metabolomics and proteomics analyses of fish liver, together with histological examination of liver and intestine demonstrated that a well balanced formulation of nutrients in the three diets allowed high metabolic compatibility of either substitutions, paving the way for innovative and sustainable use of novel raw materials for the fish feed industry. Results show that the main metabolic pathways of nutrient absorption and catabolism were essentially unaltered by alternative feed ingredients, and also histological alterations were negligible. It is demonstrated that substitution of fish meal with sustainable alternatives does not impact on fish metabolism, given proper efforts are put in fulfilling nutritional requirements of rainbow trout.

2022-07-18 | PXD033201 | Pride

Long term effects on performance physiology and fillet quality of Atlantic salmon (Salmo salar L.) fed low fish meal and n-3 LC-PUFA diets where fish oil was substituted by whole Schyzochytrium limacinum biomass

Project description:Atlantic salmon individuals were grown, from fresh water to salt water in tanks on diets with low fish meal (10%) and 1-1.25% total n-3 LC-PUFA levels. Dietary n-3 LC-PUFAs were supplemented by 1) fish oil (FO), 2) Schyzochytrium limacinum biomass (AA). Further, the fish from all treatments were mixed and redistributed in sea cages reared to slaughter (ca. 3kg body weight) on either FO or AA. Transcriptomics analyses in liver and intestinal tissues revealed significant dietary effects on the expression of immune modulating, as well as ion, lipid, protein and xenobiotic metabolism genes.

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