Blar i Brage NMBU på forfatter "Rørvik, Kjell-Arne"
-
Bred kartlegging av faktorer som påvirker teksturegenskaper i oppdrettslaks ved multivariat tilnærming
Mørkøre, Turid; Espe, Marit; Veiseth-Kent, Eva; Terjesen, Bendik Fyhn; Koppang, Erling Olaf; Rørvik, Kjell-Arne (Nofima rapportserie;, Research report, 2009)Formålet med studien var å øke kunnskapen om forhold som påvirker teksturen i laksemuskel og å definere faktorer som kan bidra til bedre fasthet i filet. Fisken i forsøket var oppdrettslaks fra en omfattende fôringsstudie ... -
Dietary impact of feed on performance, health and melanization of Atlantic salmon (Salmo salar L.)
Rafiq, Muhammad Bilal (Master thesis, 2016-06-07)Good performance, robustness to diseases and stress, and flesh quality according to consumer expectations are important success factor in farming of Atlantic salmon (Salmo salar L). In recent years, superficial hyper-pigmented ... -
Different growth performance, lipid deposition, and nutrient utilization in in-season (S1) Atlantic salmon post-smolt fed isoenergetic diets differing in protein-to-lipid ratio
Dessen, Jens-Erik; Weihe, Runi; Hatlen, Bjarne; Thomassen, Magny Sissel S.; Rørvik, Kjell-Arne (Journal article; Peer reviewed, 2017) -
Effect of dietary enrichment with antioxidants on the sensory quality of raw and cooked Atlantic salmon (Salmo salar L.)
Adhikari, Pradip (Master thesis, 2016-06-06)The main sensory quality parameters of Atlantic salmon are color, texture, fillet integrity, taste and odor. The aim of the present study was to investigate the effect of diet on sensory quality of raw salmon fillets, and ... -
Effects of tetradecylthioacetic acid (TTA) treatment on lipid metabolism in salmon hearts—in vitro and in vivo studies
Arge, Regin; Dessen, Jens-Erik; Østbye, Tone-Kari K; Ruyter, Bente; Thomassen, Magny Sissel S.; Rørvik, Kjell-Arne (Journal article; Peer reviewed, 2018) -
Endocrine and Transcriptome Changes Associated with Testicular Growth and Differentiation in Atlantic Salmon (Salmo salar L.)
Skjold, Vetle; Afanasyev, Sergey; Burgerhout, Erik; Sveen, Lene; Rørvik, Kjell-Arne; Mota, Vasco Filipe Cardoso Neves; Dessen, Jens-Erik; Krasnov, Aleksei (Peer reviewed; Journal article, 2024) -
Gradually decreasing daylength after smoltification induced by “winter signal“ reduced sexual maturation in male Atlantic salmon
Skjold, Vetle; Rørvik, Kjell-Arne; Sveen, Lene; Burgerhout, Erik; Mota, Vasco C.; Weihe, Runi; Ytrestøyl, Trine; Bou, Marta; Jacobsen, Hans Jakup; Allaoui, Giovanni; Fuskevåg, Ole-Martin; Dessen, Jens-Erik (Journal article; Peer reviewed, 2024) -
Growth, feed utilization, health and biometric parameters in Atlantic salmon (Salmo salar L.) - Influence of dietary protein-to-lipid ratio and body fat status
Dessen, Jens-Erik (PhD Thesis;2018:103, Doctoral thesis, 2018)Today, commercial diets for large farmed Atlantic salmon (Salmo salar L.) commonly contain 30-35 % protein and 35-39 % lipids, i.e. a ratio of protein-to-lipids below 1. Such energy dense diets have generally been shown ... -
Improving production efficiency of farmed Atlantic salmon(Salmo salar L.) by isoenergetic diets with increased dietaryprotein-to-lipid ratio
Weihe, Runi; Dessen, Jens-Erik; Arge, Regin; Thomassen, Magny Sissel S.; Hatlen, Bjarne; Rørvik, Kjell-Arne (Journal article; Peer reviewed, 2018) -
Increased protein-to-lipid ratio in energy dense diets improves slaughter yields and muscle thickness of different weight classes of farmed Atlantic salmon (Salmo salar L.)
Weihe, Runi; Dessen, Jens-Erik; Arge, Regin; Thomassen, Magny Sissel S.; Hatlen, Bjarne; Rørvik, Kjell-Arne (Journal article; Peer reviewed, 2019) -
Low body fat content prior to declining day length in the autumn significantly increased growth and reduced weight dispersion in farmed Atlantic salmon Salmo salar L.
Rørvik, Kjell-Arne; Dessen, Jens-Erik; Åsli, Magnus; Thomassen, Magny Sissel S.; Gannestad, Kjellrun Hoås; Mørkøre, Turid (Journal article; Peer reviewed, 2018) -
Melanin spots in Atlantic salmon fillets : an investigation of the general problem, the frequency and the economic implication based on an online survey
Färber, Franziska (Master thesis, 2017)The appearance of a product is an important quality feature that influences the purchasing decision of consumers. In this respect, dark stained melanin spots in Atlantic salmon fillets have become a major issue in recent ... -
A model system to evaluate the economic performance of two different dietary feeding strategies in farmed Atlantic salmon (Salmo salar L.)
Weihe, Runi; Rørvik, Kjell-Arne; Thomassen, Magny Sissel S.; Asche, Frank (Peer reviewed; Journal article, 2019)This paper evaluates the feed cost differences in salmon farming based on two energy dense feed strategies: one resembles the industrial preference of using high-fat diets (LP: low protein-to-lipid ratio) whereas in the ... -
Mørke flekker i laksefilet. Kunnskapsstatus og tiltak for å begrense omfanget
Mørkøre, Turid; Larsson, Thomas; Kvellestad, Agnar Ståle; Koppang, Erling Olaf; Åsli, Magnus; Krasnov, Aleksei; Dessen, Jens-Erik; Moreno, Helena Maria; Valen, Elin Christine; Gannestad, Kjellrun Hoås; Gjerde, Bjarne; Taksdal, Torunn; Bæverfjord, Grete; Meng, Yuqiong; Heia, Karsten; Wold, Jens Petter; Borderias, A.J.; Moghadam, Hooman; Romarheim, Odd Helge; Rørvik, Kjell-Arne (Research report, 2015)Forekomsten av mørke flekker i laksefilet har økt betraktelig senere årene. I dag har hver femte filet slike flekker som i hovedsak er opp til 3 cm i diameter og lokalisert til filetens bukområde. Store ryggflekker har ... -
Optimalt fôr som gir fast filet
Mørkøre, Turid; Koppang, Erling Olaf; Espe, Marit; Larsson, Thomas; Veiseth-Kent, Eva; Terjesen, Bendik Fyhn; Standal, Inger Beate; Rørvik, Kjell-Arne (Nofima rapportserie;, Research report, 2010)Formålet med studien var å undersøke om fôr tilsatt aminosyrene arginin eller glutamat kan forbedre teksturen av oppdrettslaks. I tillegg ønsket vi å undersøke om bløt filet kan knyttes til nedsatt leverfunksjon eller andre ... -
Phospholipid and LC-PUFA metabolism in Atlantic salmon (Salmo salar) testes during sexual maturation
Bogevik, André Sture; Hayman, Edward S.; Bjerke, Målfrid Tofteberg; Dessen, Jens-Erik; Rørvik, Kjell-Arne; Luckenbach, J. Adam (Peer reviewed; Journal article, 2020)The importance of dietary lipids in male reproduction are not as well understood as in females, in which dietary lipids, such as phospholipids (PL) and associated fatty acids (FA), are important structural components of ... -
Seasonal variation in fillet quality of Atlantic salmon (Salmo salar)
Nordberg, Monica (Master thesis, 2018)The Aquaculture industry are providing fresh seafood all year around, and the demand for safe and nutritious, quality food is increasing. Atlantic salmon are released into sea cages where they are reared until slaughter. ... -
Sudden increased mortality in large seemingly healthy farmed Atlantic salmon (Salmo salar L.) was associated with environmental and dietary changes
Dessen, Jens-Erik; Østbye, Tone-kari K; Ruyter, Bente; Bou, Marta; Thomassen, Magny Sissel S.; Rørvik, Kjell-Arne (Peer reviewed; Journal article, 2020)Mortality of seemingly healthy farmed Atlantic salmon is a large problem in Norwegian aquaculture, and has been linked to infectious and noninfectious cardiovascular diseases. In this study, an event of sudden mortality ... -
Tetradecylthioacetic acid (TTA) : a functional feed ingredient for Atlantic salmon affecting early sexual maturation, cardiac robustness and β-oxidative capacity
Arge, Regin (PhD Thesis;2018:36, Doctoral thesis, 2018)Utilisation of fatty acids highly dominates energy metabolism in high performance fish as the Atlantic salmon. It is well established knowledge that feed intake and growth of salmon is highly influenced by water temperature ... -
Tetradecylthioacetic acid (TTA) – A functional feed ingredient for Atlantic salmon (Salmo salar L.): Growth, sexual maturation and health
Alne, Henriette (PhD Thesis;2010:23, Doctoral thesis, 2010)Farmed Atlantic salmon (Salmo salar L.) is transferred to sea at different times during the year. Independently of time after sea transfer, the salmon experience a period of low performance, characterized by reduced appetite, ...