Blar i Brage IMR på forfatter "Espe, Marit"
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Amino Acid Carriers of the Solute Carrier Families 7 (SLC7) and 38 (SLC38) Are Involved in Leucine Sensing in the Brain of Atlantic Salmon (Salmo salar)
Comesaña, Sara; Lai, Floriana; Jordal, Ann-Elise Olderbakk; Verri, Tiziano; Espe, Marit; Soengas, José L.; Rønnestad, Ivar (Peer reviewed; Journal article, 2021)Sensing of amino acids in fish brain, especially branched-chain amino acids (BCAA) like leucine, is involved in regulation of feed intake through different mechanisms. However, there is limited information regarding the ... -
Anorectic role of high dietary leucine in farmed Atlantic salmon (Salmo salar L.): Effects on feed intake, growth, amino acid transporters and appetite-control neuropeptides.
Lai, Floriana; Comesaña, Sara; Gomes, Ana S.; Flatejord, Daniel; Tolås, Ingvill; Espe, Marit; De Santis, Christian; Hartviksen, Mali B.; Verri, Tiziano; Soengas, Jose L.; Rønnestad, Ivar (Peer reviewed; Journal article, 2023)Leucine has been identified to modulate feed intake and energy homeostasis in fish as in other vertebrates. Under allostatic conditions, energy expenditure may change, and adjustments to the processes that govern the energy ... -
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 ... -
Choline supplementation increased total body lipid gain, while surplus methionine improved growth and amino acid retention in adult Atlantic salmon (Salmo salar)
Espe, Marit; Andersen, Synne Marte; Veiseth-Kent, Eva; Rønnestad, Ivar; Holen, Elisabeth; Zerrahn, Jens-Erik; Aksnes, Anders (Peer reviewed; Journal article, 2017)Methionine–choline-deficient (MCD) mammals are known to accumulate liver TAG probably due to phosphatidylcholine (PC) deficiency and thus assembly of VLDL and transport of lipids from liver to peripheral organs. To assess ... -
Development of a fatty liver model using oleic acid in primary liver cells isolated from Atlantic salmon and the prevention of lipid accumulation using metformin
Espe, Marit; Xie, Shiwei; Chen, Shijun; Araujo, Pedro; Holen, Elisabeth (Journal article; Peer reviewed, 2019)The following study aimed to develop a fatty liver model in primary hepatocytes isolated from Atlantic salmon. In order to induce the fatty liver, oleic acid (OA) at 0.2 or 0.4 mM was used. Metformin, known to prevent and ... -
Dietary chlorpyrifos-methyl exposure impair transcription of immune-, detoxification- and redox signaling genes in leukocytes isolated from cod (Gadus morhua)
Holen, Elisabeth; Espe, Marit; Larsen, Anett Kristin; Olsvik, Pål Asgeir (Peer reviewed; Journal article, 2022)Inclusion of new environmental toxicants increase with the amount of plant ingredients substituting marine proteins and oils in feed for farmed Atlantic salmon (Salma salar). Agricultural pesticides like chlorpyrifos-methyl, ... -
Dietary electrolyte balance of Atlantic salmon (Salmo salar) freshwater feeds: Impact on osmoregulation, mineral metabolism and performance in seawater
Prabhu, P. Antony Jesu; Fjelldal, Per Gunnar; Remø, Sofie C.; Selvam, Chandrasekar; Hamre, Kristin; Espe, Marit; Holen, Elisabeth; Skjærven, Kaja Helvik; Vikså, Vibeke; Subramanian, Saravanan; Schrama, Johan W.; Sissener, Nini (Peer reviewed; Journal article, 2022)Dietary electrolyte balance is the equilibrium of monovalent cations and anions that influence the acid-base balance of the feed (dEB = Na + K − Cl, mEq kg−1). Dietary electrolytes/minerals can influence the physiological ... -
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 ... -
Dietary selenium required to achieve body homeostasis and attenuate pro-inflammatory responses in Atlantic salmon post-smolt exceeds the present EU legal limit
Prabhu, P. Antony Jesu; Holen, Elisabeth; Espe, Marit; Silva, Marta Sofia; Holme, May-Helen; Hamre, Kristin; Lock, Erik-Jan; Waagbø, Rune (Peer reviewed; Journal article, 2020)Selenium (Se) supplementation either as inorganic or organic form was evaluated in Atlantic salmon post-smolt in vivo and in vitro. The basal diet was formulated to be low in fish meal and contain 0.24 mg Se kg−1; six other ... -
Differential production of prostaglandins and prostacyclins by liver and head kidney cells from Atlantic salmon challenged with arachidonic and eicosapentaenoic acids
Araujo, Hernandez Pedro W; Espe, Marit; Lucena, Eva; Yang, Yang; Holen, Elisabeth (Peer reviewed; Journal article, 2021)Polyunsaturated fatty acids such as arachidonic and eicosapentaenoic acids are the precursors of eicosanoid metabolites (e.g prostaglandins and prostacyclins) which regulate inflammatory and immune response processes in ... -
Earlier or delayed seasonal broodstock spawning changes nutritional status and metabolic programming of growth for next-generation Atlantic salmon
Skjærven, Kaja Helvik; Mommens, Maren; Adam, Anne-Catrin; Saito, Takaya; Oveland, Eystein; Espe, Marit (Peer reviewed; Journal article, 2022)Atlantic salmon (Salmo salar) breeding companies depend on changing light, temperature and feeding regimes to achieve new generations outside the natural spawning season. However, there have been few conducted trials ... -
Effect of increased rearing temperature on digestive function in cobia early juvenile
Yufera, Manuel; Nguyen, MV; Navarro-Guillén, Carmen; Moyano, Francisco Javier; Jordal, Ann-Elise Olderbakk; Espe, Marit; Conceicao, LEC; Engrola, Sofia; Le, MH; Rønnestad, Ivar (Journal article; Peer reviewed, 2019)The present study is focused to elucidate the main characteristics of the digestive function of this carnivorous fast-growing fish living at high temperatures. With this aim, we have examined the effects of an increased ... -
Elevated sea temperature combined with dietary methionine levels affect feed intake and appetite-related neuropeptide expression in the brains of juvenile cobia (Rachycentron canadum)
Nguyen, Minh; Pham, Phuong Linh; Jordal, Ann-Elise Olderbakk; Espe, Marit; Conceição, L.E.C.; Yúfera, M.; Engrola, S.; Le, M.H.; Rønnestad, Ivar (Peer reviewed; Journal article, 2023)This study aimed to determine the impact of elevated temperature combined with different levels of dietary methionine concentrations on feed intake (FI) and brain expression of selected neuropeptides and one receptor ... -
Fordel med fiskeproteinkonsentrat i laksefôr
Solbakken, Viktor; Espe, Marit (Havforskningsnytt, Working paper, 1997) -
Leucine did not stimulate growth and accretion in either stressed or unstressed Atlantic salmon
Espe, Marit; Lai, Floriana; Gomes, Ana S.; De Santis, Christian; Hartviksen, Mali B.; Holen, Elisabeth; Rønnestad, Ivar (Peer reviewed; Journal article, 2021)The aim of the current trial was to test whether leucine affected growth and accretion including test any effects on leucine upon stress. Quadruplicate tanks each containing 50 Atlantic salmon (Salmo salar) (mean start ... -
Metabolic and molecular signatures of improved growth in Atlantic salmon (Salmo salar) fed surplus levels of methionine, folic acid, vitamin B6 and B12 throughout smoltification.
Adam, Anne-Catrin; Saito, Takaya; Espe, Marit; Whatmore, Paul; Fernandes, Jorge Manuel de Oliveira; Vikeså, Vibeke; Skjærven, Kaja Helvik (Peer reviewed; Journal article, 2021)A moderate surplus of the 1C nutrients methionine, folic acid, vitamin B6 and B12 above dietary recommendations for Atlantic salmon has shown to improve growth and reduce hepatosomatic index in the on-growing salt water ... -
Methionine: An Indispensable Amino Acid in Cellular Metabolism and Health of Atlantic Salmon
Espe, Marit; Adam, Anne-Catrin; Saito, Takaya; Skjærven, Kaja Helvik (Peer reviewed; Journal article, 2023)Methionine is an indispensable amino acid with an important role as the main methyl donor in cellular metabolism for both fish and mammals. Metabolization of methionine to the methyl donor S-adenosylmethionine (SAM) has ... -
Micronutrient supplementation affects DNA methylation in male gonads with potential intergenerational epigenetic inheritance involving the embryonic development through glutamate receptor-associated genes
Saito, Takaya; Whatmore, Paul; Taylor, John F.; Fernandes, Jorge Manuel de Oliveira; Adam, Anne-Catrin; Tocher, Douglas R.; Espe, Marit; Skjærven, Kaja Helvik (Peer reviewed; Journal article, 2022)DNA methylation has an important role in intergenerational inheritance. An increasing number of studies have reported evidence of germline inheritance of DNA methylation induced by nutritional signals in mammals. Vitamins ... -
Micronutrient supplementation affects transcriptional and epigenetic regulation of lipid metabolism in a dose-dependent manner
Saito, Takaya; Whatmore, Paul; Taylor, John F.; Fernandes, Jorge Manuel de Oliveira; Adam, Anne-Catrin; Tocher, Douglas R.; Espe, Marit; Skjærven, Kaja Helvik (Peer reviewed; Journal article, 2020) -
Opinion on the safety of BioProtein® by the Scientific Panel on Animal Feed of the Norwegian Scientific Committee for Food Safety. Revised version
Lundebye, Anne-Katrine; Aursand, Marit; Berntssen, Marc; Hemre, Gro Ingunn; Jenssen, Bjørn Munro; Thomassen, Magny Sissel S.; Volden, Harald; Berdal, Knut G; Espe, Marit; Mjaaland, Siri; Storrø, Ivar; Sørum, Henning; Valheim, Mette; Bernhoft, Aksel (VKM Report, Research report, 2006)