<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[FishLab AS]]></title><description><![CDATA[FishLab AS]]></description><link>https://www.fishlab.no/forskning</link><generator>RSS for Node</generator><lastBuildDate>Fri, 03 Jul 2026 23:42:47 GMT</lastBuildDate><atom:link href="https://www.fishlab.no/en/blog-feed.xml" rel="self" type="application/rss+xml"/><item><title><![CDATA[Salmon can produce vitamin D from sunlight – new study provides exciting new insights into vitamin D metabolism in salmon!]]></title><description><![CDATA[In a recently published study, we show for the first time that Atlantic salmon can synthesize vitamin D3 endogenously when exposed to sunlight. This surprising finding changes our understanding of vitamin D metabolism in salmon and has important implications for modern aquaculture. First, we discovered that salmon shortly after being released into open-air cages in the sea had significantly higher levels of circulating vitamin D in plasma compared to fish produced in indoor facilities. To...]]></description><link>https://www.fishlab.no/en/post/salmon-can-produce-vitamin-d-from-sunlight-new-study-provides-exciting-new-insights-into-vitamin-d</link><guid isPermaLink="false">6a47936970932773aebe4372</guid><pubDate>Fri, 03 Jul 2026 10:48:19 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/26a450_de73a88e4f2541818df4a8dcce2b585b~mv2.png/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>David Lausten Knudsen</dc:creator></item><item><title><![CDATA[New LC-MS/MS method for analysis of thyroxine (T4) and steroid hormones developed at FishLab]]></title><description><![CDATA[I 2023 utviklet vi ved FishLab en ny analytisk metode for kvantifisering av tyroksin (T4) og utvalgte steroidhormoner i fiskeplasma. Metoden er basert på LC-MS/MS (væske-kromatografi koblet til tandem massespektrometri), og gir høy spesifisitet, sensitivitet og analytisk robusthet ved analyse av lave hormonnivåer i komplekse biologiske matrikser.]]></description><link>https://www.fishlab.no/en/post/new-lc-ms-ms-method-for-analysis-of-thyroxine-t4-and-steroid-hormones-developed-at-fishlab</link><guid isPermaLink="false">6a47934d844a640b2cc50ec1</guid><pubDate>Fri, 03 Jul 2026 10:47:55 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/26a450_c60a0d0238454976a2a28952c3c9d6b9~mv2.jpg/v1/fit/w_1000,h_921,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>David Lausten Knudsen</dc:creator></item><item><title><![CDATA[New research shows that fish poop can provide a better picture of stress levels]]></title><description><![CDATA[From the moment the fish is caught until the blood sample is taken, the level of stress hormones in the blood can have risen 1,000 percent. In the feces, however, the level of stress hormones is more stable, which can provide a more reliable and accurate picture of the underlying stress level of the fish. When explaining adverse events in the aquaculture industry, stress is often cited as a triggering or contributing factor. Stress levels are traditionally documented through a blood test, but...]]></description><link>https://www.fishlab.no/en/post/new-research-shows-that-fish-poop-can-provide-a-better-picture-of-stress-levels</link><guid isPermaLink="false">6a479331f640a3b4442f35d0</guid><pubDate>Fri, 03 Jul 2026 10:47:27 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/26a450_aeab4161938c48ea8f805907dc6e310c~mv2.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Skretting</dc:creator></item><item><title><![CDATA[How stressed are the smolts immediately after release?]]></title><description><![CDATA[Using a recently published analysis method, the stress level of smolt was examined 4-8 days after release. The level of cortisol metabolites in feces was as much as ten times higher than normal immediately after exposure, and a majority of fish still had elevated stress levels 8 days after exposure. However, the analyses also showed that stress levels decreased rapidly and that the fish were significantly less stressed 8 days after exposure compared to 4 days after exposure. The measurements...]]></description><link>https://www.fishlab.no/en/post/how-stressed-are-the-smolts-immediately-after-release</link><guid isPermaLink="false">6a47930a10a85c668c4c18f4</guid><pubDate>Fri, 03 Jul 2026 10:46:50 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/8e4b9e_af5cb987753d4793a375789c60c8f0b3~mv2.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>FishLab Editor</dc:creator></item><item><title><![CDATA[New method for measuring stress in fish]]></title><description><![CDATA[A new analytical method for measuring stress in fish was recently published in the scientific journal Molecules. The article is based on Vanessa Meling's master's project, which was a collaboration between Oslo Metropolitan University, the University of Stavanger and Fishlab AS. The work was carried out at FishLab AS in Stavanger, where Vanessa developed and validated a new LC-MS/MS method for detection and quantification of cortisol metabolites in feces from Atlantic salmon. This has been...]]></description><link>https://www.fishlab.no/en/post/new-method-for-measuring-stress-in-fish</link><guid isPermaLink="false">6a47928d70932773aebe4262</guid><pubDate>Fri, 03 Jul 2026 10:45:58 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/8e4b9e_3efaf5e7c23e4b1c803864df3b3eef62~mv2.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>FishLab Editor</dc:creator></item><item><title><![CDATA[Laks kan produsere vitamin D ved sollys – ny studie gir spennende ny innsikt i vitamin D-metabolismen hos laks!]]></title><description><![CDATA[I et nylig publisert studie viser vi for første gang at atlantisk laks kan syntetisere vitamin D3 endogent når den eksponeres for sollys. Dette overraskende funnet endrer vår forståelse av vitamin D-metabolismen hos laks og har viktige implikasjoner for moderne oppdrett. Først oppdaget vi at laks kort tid etter utsett i åpne merder i sjøen hadde betydelig høyere nivåer av sirkulerende vitamin D i plasma sammenlignet med fisk produsert i innendørs anlegg. For å undersøke om forskjellene kunne...]]></description><link>https://www.fishlab.no/post/laks-kan-produsere-vitamin-d-ved-sollys-ny-studie-gir-spennende-ny-innsikt-i-vitamin-d-metabolisme</link><guid isPermaLink="false">6946f6b63b8b6eb4129bdbdd</guid><pubDate>Sat, 20 Dec 2025 19:48:55 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/26a450_de73a88e4f2541818df4a8dcce2b585b~mv2.png/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>David Lausten Knudsen</dc:creator></item><item><title><![CDATA[Ny LC-MS/MS-metode for analyse av tyroksin (T4) og steroidhormoner utviklet ved FishLab]]></title><description><![CDATA[I 2023 utviklet vi ved FishLab en ny analytisk metode for kvantifisering av tyroksin (T4) og utvalgte steroidhormoner i fiskeplasma. Metoden er basert på LC-MS/MS (væske-kromatografi koblet til tandem massespektrometri), og gir høy spesifisitet, sensitivitet og analytisk robusthet ved analyse av lave hormonnivåer i komplekse biologiske matrikser.]]></description><link>https://www.fishlab.no/post/ny-lc-ms-ms-metode-for-analyse-av-tyroksin-t4-og-steroidhormoner-utviklet-ved-fishlab</link><guid isPermaLink="false">6946d27420a952c8168baafb</guid><pubDate>Thu, 18 Apr 2024 16:11:20 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/26a450_c60a0d0238454976a2a28952c3c9d6b9~mv2.jpg/v1/fit/w_1000,h_921,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>David Lausten Knudsen</dc:creator></item><item><title><![CDATA[Ny forskning viser at fiskebæsj kan gi et bedre bilde av stressnivå]]></title><description><![CDATA[Fra øyeblikket fisken håves til blodprøven er tatt, kan nivået av stresshormoner i blodet ha steget 1.000 prosent. I bæsjen derimot er nivået med stresshormoner mer stabilt, noe som kan gi et sikrere og mer korrekt bilde av det underliggende stressnivået til fisken. Når uønskede hendelser i havbruksnæringen skal forklares, blir stress ofte pekt på som utløsende eller medvirkende faktor. Stressnivå er tradisjonelt dokumentert gjennom en blodprøve, men forskere mener at feces, eller fiskebæsj,...]]></description><link>https://www.fishlab.no/post/din-titel-hvad-handler-din-blog-om</link><guid isPermaLink="false">6310b4c40c109fd8aadb636c</guid><pubDate>Fri, 19 Aug 2022 08:26:21 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/26a450_aeab4161938c48ea8f805907dc6e310c~mv2.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Skretting</dc:creator></item><item><title><![CDATA[Hvor stresset er smolten rett etter utsett?]]></title><description><![CDATA[Ved hjelp av en nylig publisert analysemetode ble stressnivået til smolt undersøkt 4-8 dager etter utsett. Nivået av kortisol-metabolitter i feces var hele ti ganger høyere enn normalt rett etter utsatt, og et flertall av fisk hadde fortsatt forhøyet stressnivå 8 dager etter utsett. Men analysene viste samtidig at stressnivået avtok raskt og at fisken var betydelig mindre stresset 8 dager etter utsatt sammenlignet med 4 dager etter utsett. Målingene bekrefter at fisken blir betydelig stresset...]]></description><link>https://www.fishlab.no/post/din-titel-hvad-er-du-ekspert-i</link><guid isPermaLink="false">6310b4c20c109fd8aadb6369</guid><pubDate>Wed, 15 Jun 2022 08:24:34 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/8e4b9e_af5cb987753d4793a375789c60c8f0b3~mv2.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>FishLab Editor</dc:creator></item><item><title><![CDATA[Ny målemetode for stress i fisk]]></title><description><![CDATA[En ny analysemetode for måling av stress i fisk ble nylig publisert i det vitenskapelige tidsskriftet Molecules. Artikkelen er basert på Vanessa Meling sitt masterprosjekt som var et samarbeid mellom Oslo Metropolitan University, Universitetet i Stavanger og Fishlab AS. Arbeidet ble utført hos FishLab AS i Stavanger, hvor Vanessa utviklet og validerte en ny LC-MS/MS metode for deteksjon og kvantifisering av kortisolmetabolitter i feces fra Atlantisk laks. Dette har vært nybrottsarbeid da...]]></description><link>https://www.fishlab.no/post/din-titel-hvad-er-dit-r%C3%A5d-eller-tip</link><guid isPermaLink="false">6310b4c10c109fd8aadb6367</guid><pubDate>Mon, 18 Apr 2022 08:25:53 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/8e4b9e_3efaf5e7c23e4b1c803864df3b3eef62~mv2.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>FishLab Editor</dc:creator></item></channel></rss>