Thomas Harvey

Salmon farmed on modern feeds contains less of the healthy, long-chain fatty acids (EPA and DHA) than before. Up until the turn of the millennium, farmed salmon were fed fish oil as a replacement for their omega-3 rich natural prey. However, fish oil is now a scarce resource, and more than half of the fat in modern feeds comes from plant oils that are inexpensive, but devoid of long-chain omega-3 fatty acids. How can we increase the omega-3 content of salmon on sustainable feeds?

One option is ...

Towards the Digital Salmon: From a reactive to a pre-emptive research strategy in aquaculture (DigiSal)

Salmon farming in the future must navigate conflicting and shifting demands of sustainability, shifting feed prices, disease, and product quality. The industry needs to develop a flexible, integrated basis of knowledge for rapid response to new challenges. Project DigiSal will lay the foundations for a Digital Salmon: an ensemble of mathematical descriptions of salmon physiology, combining ...

Atlantic salmon is a main source of essential ω-3 long-chain polyunsaturated fatty acids (LC-PUFA) in many Western diets, especially eicosapentaenoic acid (20:5n-3, EPA) and docosahexaenoic acid (22:6n-3, DHA). However, farmed salmon meat now contains less healthy ω-3 fatty acids (FA) than before, due to the shift from marine to vegetable lipid feed sources. An important future aquaculture challenge is therefore to maintain a healthy and high EPA/DHA content when farmed salmon is fed a vegetable ...

Source: Gareth Gillard. (24 June 2016)

TO DO : Library preparation- Tom and Gareth

File types: Raw counts from HTSeq-count - .counts.txt CPM - .CPM.txt log2 scaled CPM - .log2CPM.txt FPKM - .FPKM.txt log2 scaled FPKM - log2FPKM.txt The scaled counts (CPM, FPKM) are derived from the raw counts, and used TMM normalised effective library sizes (using edgeR functions).

For feed switch experiment:

Count tables, separated for liver and gut tissue (can alter sample separation at any point) ...

Record of weight, length and sex of fish sampled after feed switch between vegetable and marine oil, in September 2015 (freshwater) and January 2016 (seawater). Young fry arrived at Solbergstranda 2015-02-05 17:20.

Fatty acids are extracted from samples and converted to fatty acid methyl esters (FAMEs) followed by separation by gas chromatography. This yields fatty acid profiles for each sample as percent of total FAME or milligram FAME per gram of biomass.

Source:

Hei Magny,

Takk!

Et par ting:

1. vi trenger å få orden på data... Lurer derfor på om du kan du lage ett dokument som inneholder alle resultat fra GCen? Uten ...

NB! The files here are the old version for the files in Lipidomics (Experimental Assay)

Lipidomic analysis by LC-MS of tissue samples from the GSF1 feed-switch experiment. Samples were analyzed at NTNU by Zdenka Bartosova and Per Bruheim.

There are two separate data files of lipid analysis in muscle and liver samples. Excel sheets contains both raw and normalised data of compounds abundance. Normalization to all compounds was used as a normalization method.

We have also performed a "normalization ...

Muscle samples (fresh water sampling) - Identification of compounds based on the LipidBlast database.

Negative mode lipidomics of muscle samples from saltwater sampling.

Muscle samples (salt water sampling) - Identification of compounds based on the LipidBlast database.

Liver samples (salt water sampling) - Identification of compounds based on the LipidBlast database.

Liver samples (fresh water sampling) - Identification of compounds based on the LipidBlast database.

Liver samples (fresh water sampling) - Identification of compounds based on the LipidBlast database.

Muscle samples (fresh water sampling) - Identification of compounds based on the LipidBlast database.

Salmon feed experiment: Lipidomic data (NEG mode) of muscle samples from fresh water sampling.

Salmon feed experiment: Lipidomic data (NEG mode) of liver samples from fresh water sampling.

Negative mode lipidomics of liver samples from saltwater sampling.

Positive mode metabolomics of muscle samples from saltwater sampling.

Muscle samples (salt water sampling) - Identification of compounds based on the LipidBlast database.

Columns: Compound 8.60_759.5784n Compound ID GPCho(12:0/22:1) Accepted? Adducts M+H, M+Na Formula C42H82NO8P Score 51,1 Fragmentation Score 62,1 Mass Error (ppm) 0,808672852 Isotope Similarity 94,59106017 Theoretical Isotope Distribution 100 - 47 - 12.5 - 2.39 - 0.367 Link http://nonlinear.com/redirect/outbound?p=lipidblast&param=GPCho%2812%3A0%2F22%3A1%29 Description GPCho(12:0/22:1) Neutral ...

Liver samples (salt water sampling) - Identification of compounds based on the LipidBlast database.

Columns: Compound 8.60_759.5784n Compound ID GPCho(12:0/22:1) Accepted? Adducts M+H, M+Na Formula C42H82NO8P Score 51,1 Fragmentation Score 62,1 Mass Error (ppm) 0,808672852 Isotope Similarity 94,59106017 Theoretical Isotope Distribution 100 - 47 - 12.5 - 2.39 - 0.367 Link http://nonlinear.com/redirect/outbound?p=lipidblast¶m=GPCho%2812%3A0%2F22%3A1%29 Description GPCho(12:0/22:1) Neutral mass (Da) ...

Salmon feed experiment: Lipidomic data (POS mode) of muscle samples from fresh water sampling.

Salmon feed experiment: Lipidomic data (POS mode) of liver samples from fresh water sampling.

Positive mode metabolomics of liver samples from saltwater sampling.

This is the fatty acid profile data from the freshwater portion of the feed switch trial. The last column has the sample ID eg: D0_MA-L-1/9_6 (Day 0, MA- Marine oil, L-liver, 1/9 sept 1, fish number 6

Fatty acid Systematic Name C14:0 Myristic acid myristin-syre C16:0 Palmitic acid palmitin-syre C16:1n7 Palmitoleic palmitolein-syre C17:0 C17:1 C18:0 stearic acid stearin-syre 18:1n9c oleic acid olje-syre C18:2n6c linoleic acid linolsyre C20:1 eicosenoic acid C18:3n3 linolenic acid linolensyre C20:2 ...

Fatty acid Systematic Name

C14:0 Myristic acid myristin-syre C16:0 Palmitic acid palmitin-syre C16:1n7 Palmitoleic palmitolein-syre C17:0 C17:1 C18:0 stearic acid stearin-syre 18:1n9c oleic acid olje-syre C18:2n6c linoleic acid linolsyre C20:1 eicosenoic acid C18:3n3 linolenic acid linolensyre C20:2 eicosadienoic C22:1 cetoleic acid cetolein-syre C20:3n3 eicosatrienoic acid C20:4n6 arachidonic acid arakidon-syre ARA C22:2 C20:5n3 eicosapentaenoic acid EPA C24:1 nervonic acid C22:5n3 docosapentaenoic ...

Information on samples submitted for RNAseq

Rows are individual samples

Columns are: ID Sample Name Date sampled Species Sex Tissue Geographic location Date extracted Extracted by Nanodrop Conc. (ng/µl) 260/280 260/230 RIN Plate ID Position Index name Index Seq Qubit BR kit Conc. (ng/ul) BioAnalyzer Conc. (ng/ul) BioAnalyzer bp (region 200-1200) Submission reference Date submitted Conc. (nM) Volume provided PE/SE Number of reads Read length

Extraction procedure and lipid analysis.

Source: Tom Harvey [E- mail from Jon Olav 19 May 2016]

Use this template when you upload RNA sequencing data. Email : 31 May 2016 More columns need to be added PE/SE etc?

Describes how the DNA was isolated from salmon intestinal samples before preparations of 16S rRNA gene amplicons for the Illumina MiSeq system.