Blar i NTNU Open på forfatter "Tocher, Douglas R."
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An oil containing EPA and DHA from transgenic Camelina sativa to replace marine fish oil in feeds for Atlantic salmon (Salmo salar L.): Effects on intestinal transcriptome, histology, tissue fatty acid profiles and plasma biochemistry
Betancor, Monica B; Li, Keshuai; Sprague, Matthew; Bardal, Tora; Sayanova, Olga; Usher, Sarah; Han, Lihua; Måsøval, Kjell; Torrissen, Ole; Napier, Johnathan; Tocher, Douglas R.; Olsen, Rolf Erik (Journal article; Peer reviewed, 2017)New de novo sources of omega 3 (n-3) long chain polyunsaturated fatty acids (LC-PUFA) are required as alternatives to fish oil in aquafeeds in order to maintain adequate levels of the beneficial fatty acids, eicosapentaenoic ... -
Can mesopelagic mixed layers be used as feed source for salmon aquaculture?
Olsen, Rolf Erik; Strand, Espen; Melle, Webjørn Raunsgård; Nørstebø, Jo Trelvik; Lall, Santosh P.; Tocher, Douglas R.; Sprague, Matthew (Peer reviewed; Journal article, 2019)Salmon aquaculture is in great need of good quality balanced protein and lipid sources, particularly marine omega-3 (n-3) long-chain polyunsaturated fatty acids (LC-PUFA), to sustain a further development of the industry. ... -
Can mesopelagic mixed layers be used as feed sources for salmon aquaculture?
Olsen, Rolf Erik; Strand, E.; Melle, Webjørn; Nørstebø, Jo Trelvik; Lall, Santos P.; Ringø, Einar; Tocher, Douglas R.; Sprague, M. (Journal article; Peer reviewed, 2020)Salmon aquaculture is in great need of good quality balanced protein and lipid sources, particularly marine omega-3 (n-3) long-chain polyunsaturated fatty acids (LC-PUFA), to sustain a further development of the industry. ... -
Endogenous production of n-3 long-chain PUFA from first feeding and the influence of dietary linoleic acid and the α-linolenic:linoleic ratio in Atlantic salmon (Salmo salar)
Sprague, Matthew; Xu, Gong; Betancor, Monica B; Olsen, Rolf Erik; Torrissen, Ole; Glencross, Brett D.; Tocher, Douglas R. (Journal article; Peer reviewed, 2019)Atlantic salmon (Salmo salar) possess enzymes required for the endogenous biosynthesis of n-3 long-chain PUFA (LC-PUFA), EPA and DHA, from α-linolenic acid (ALA). Linoleic acid (LA) competes with ALA for LC-PUFA biosynthesis ... -
Impact of dietary carbohydrate/protein ratio on hepatic metabolism in land-locked Atlantic salmon (Salmo salar L.)
Betancor, Mónica B.; Olsen, Rolf Erik; Marandel, Lucie; Skulstad, Ole Fredrik; Madaro, Angelico; Tocher, Douglas R.; Panserat, Stephane (Journal article; Peer reviewed, 2018)A common-garden experiment was carried out to compare two genetically distinct strains of Atlantic salmon (Salmo salar) fed diets with either high (CHO) or low (NoCHO) digestible carbohydrate (starch). Twenty salmon from ... -
Oil from transgenic Camelina sativa containing over 25 % n-3 long-chain PUFA as the major lipid source in feed for Atlantic salmon (Salmo salar)
Betancor, Mónica B.; Li, Keshuai; Bucerzan, Valentin S.; Sprague, Matthew; Sayanova, Olga; Usher, Sarah; Han, Lihua; Norambuena, Fernando; Torrissen, Ole; Napier, Johnathan A.; Tocher, Douglas R.; Olsen, Rolf Erik (Journal article; Peer reviewed, 2018)Facing a bottleneck in the growth of aquaculture, and a gap in the supply and demand of the highly beneficial n-3 long-chain PUFA (LC-PUFA), sustainable alternatives to traditional marine-based feeds are required. Therefore, ... -
Omega-3 long-chain polyunsaturated fatty acids, EPA and DHA: Bridging the gap between supply and demand
Tocher, Douglas R.; Betancor, Mónica B.; Sprague, Matthew; Olsen, Rolf Erik; Napier, Johnathan A. (Journal article; Peer reviewed, 2019)The omega-3 (n-3) long-chain polyunsaturated fatty acids (LC-PUFA), eicosapentaenoic (EPA, 20:5n-3) and docosahexaenoic (DHA, 22:6n-3) acids, are well accepted as being essential components of a healthy, balanced diet, ... -
Update on GM canola crops as novel sources of omega‐3 fish oils
Napier, Johnathan A.; Olsen, Rolf Erik; Tocher, Douglas R. (Journal article; Peer reviewed, 2018)There is considerable interest in new sources of omega‐3 long‐chain (here defined as fatty acids ≥C20) polyunsaturated fatty acids (LC‐PUFA), specifically eicosapentaenoic acid (EPA; 20:5n‐3) and docosahexaenoic acid (DHA; ...