Browsing Brage IMR by Author "Johansen, Johan"
Now showing items 1-8 of 8
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Changes in daylength and temperature from April until August for Atlantic salmon (Salmo salar) reared in sea cages, increase growth, and may cause consumption of antioxidants, onset of cataracts and increased oxidation of fillet astaxanthin
Hamre, Kristin; Micallef, Giulia; Hillestad, Marie; Johansen, Johan; Remø, Sofie c; Zhang, Wuxiao; Ødegård, Elisabeth Rasmussen; Araujo, Hernandez Pedro W; Prabhu, P. Antony Jesu; Waagbø, Rune (Peer reviewed; Journal article, 2022)The hypothesis of the present study was that increased growth in spring, stimulated by increasing temperature and daylength, leads to oxidative stress in Atlantic salmon with accumulation of oxidation products in the tissues ... -
Dietary micronutrient composition affects fillet texture and muscle cell size in Atlantic salmon (Salmo salar)
Hamre, Kristin; Bjørnevik, Marit; Espe, Marit; Conceição, Luis E. C.; Johansen, Johan; Silva, Joana; Hillestad, Marie; Prabhu, P. Antony Jesu; Taylor, John F.; Tocher, Douglas R.; Lock, Erik-Jan; Hemre, Gro Ingunn (Peer reviewed; Journal article, 2020)During the past 20 years, plant ingredients have taken over as the main constituents in feed for Atlantic salmon. This has changed the nutrient composition of the feeds, the bioavailability of nutrients and perhaps nutrient ... -
Growth and safety assessment of feed streams for black soldier fly larvae: A case study with aquaculture sludge
Schmitt, Eric; Belghit, Ikram; Johansen, Johan; Leushuis, Raymond; Lock, Erik-Jan; Melsen, Diede; Ramasamy Shanmugam, Ram Kathirampatti; Loon, Joop Van; Paul, Aman (Journal article; Peer reviewed, 2019)The production of food is an intensive source of environmental impact. In aquaculture, one source of impact is solid waste, which contains high concentrations of minerals, other nutrients, and metals. The larvae of Hermetia ... -
Oksidativt stress, vårdropp i pigmentering og produksjonslidelser hos laks
Hamre, Kristin; Remø, Sofie C.; Ørnsrud, Robin; Oveland, Eystein; Merel, Sylvain; Waagbø, Rune; Micallef, Giulia; Hillestad, Marie; Johansen, Johan (Rapport fra havforskningen;2019 - 16, Research report, 2019)I lakseoppdrett opplever man noen ganger en reduksjon i pigmentering av fileten i forbindelse med økt vekst i vårsesongen når temperatur og daglengde øker. I EU-prosjektet ARRAINA fant vi økt oksidativ status i fisk samplet ... -
Recommendations for dietary level of micro-minerals and vitamin D3 to Atlantic salmon (Salmo salar) parr and post-smolt when fed low fish meal diets
Antony Jesu Prabhu, Antony Jesu Prabhu; Lock, Erik-Jan; Hemre, Gro Ingunn; Hamre, Kristin; Espe, Marit; Olsvik, Pål Asgeir; Silva, Joana; Hansen, Ann-Cecilie; Johansen, Johan; Sissener, Nini; Waagbø, Rune (Journal article; Peer reviewed, 2019)Atlantic salmon (Salmo salar) feeds have changed drastically in their composition from being predominantly marine-based to plant-based. This has altered the dietary supply and availability of micro-nutrients to Atlantic ... -
Risk assessment of Aquaterra® oil for its intended use as ingredient in fish feed
Thorstensen, Tage; Bodin, Johanna Eva; Duale, Nur; Jevnaker, Anne-Marthe Ganes; Johansen, Johan; Sipinen, Ville Erling; Shapaval, Volha; Øystein, Sæle; Prydz, Kristian; Skjærven, Kaja Helvik (Peer reviewed; Journal article, 2023)The Norwegian Scientific Committee for food an Environment (VKM) has assessed an application for authorisation of refined oilseed rape oil (Aquaterra®) derived from genetically modified oilseed rape line NS-B50027-4 for ... -
Risk assessment of Aquaterra® oil for its intended use as ingredient in fish feed. Scientific Opinion of the Norwegian Scientific Committee for Food and Environment
Thorstensen, Tage; Bodin, Johanna Eva; Duale, Nur; Jevnaker, Anne-Marthe Ganes; Johansen, Johan; Sipinen, Ville Erling; Shapaval, Volha; Sæle, Øystein; Prydz, Kristian; Skjærven, Kaja Helvik (Peer reviewed; Journal article, 2023)The Norwegian Scientific Committee for food an Environment (VKM) has assessed an application for authorisation of refined oilseed rape oil (Aquaterra®) derived from genetically modified oilseed rape line NS-B50027-4 for ... -
Validering av optimale mikronæringsstoff-nivå i laksefôr - ASSESSFEED
Hamre, Kristin; Taylor, John F.; Silva, Joanna; Lock, Erik-Jan; Johansen, Johan; Hillestad, Marie; Conceição, Luís E.C.; Tocher, Douglas R.; Espe, Marit; Bjørnevik, Marit; Hemre, Gro Ingunn (Rapport fra havforskningen;21-2018, Research report, 2018)ASSESSFEED er et prosjekt utgått fra EU-prosjektet ARRAINA, med målsetning å validere nye anbefalinger for tilsetning av mikronæringsstoffer, særlig vannløselige vitaminer, i laksefôr. Det ble kjørt et fôingsforsøk der ...