Influence of the dietary protein: lipid ratio and fish oil substitution on fatty acid composition and metabolism of Atlantic salmon (Salmo salar) reared at high water temperatures
A factorial, two-way, experimental design was used for this 10-week nutritional trial, aiming to elucidate the interactive effects of decreasing dietary protein:lipid level and substitution of fish oil (FO) with rapeseed oil (RO) on tissue fatty acid (FA) composition and metabolism of large Atlantic...
Published in: | British Journal of Nutrition |
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Main Authors: | , , , , |
Other Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press
2011
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Subjects: | |
Online Access: | http://hdl.handle.net/1893/2775 https://doi.org/10.1017/S0007114510004605 http://journals.cambridge.org/action/displayJournal?jid=BJN http://dspace.stir.ac.uk/bitstream/1893/2775/2/Tocher-Influence%20of%20the%20dietary%20proteinlipid%20ratio%20and%20fish%20oil%20substitution.pdf http://dspace.stir.ac.uk/bitstream/1893/2775/1/Vasilis%20PL%20ratio%20salmon.pdf |
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ftunivstirling:oai:dspace.stir.ac.uk:1893/2775 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
University of Stirling: Stirling Digital Research Repository |
op_collection_id |
ftunivstirling |
language |
English |
topic |
Atlantic salmon Rapeseed oil PUFA beta-Oxidation Protein: lipid ratio Water temperature Lipid metabolism Growth Replacement fish oil Nutrition Fishes Nutrition Requirements Fishes Feeding and feeds Lipoproteins Fish |
spellingShingle |
Atlantic salmon Rapeseed oil PUFA beta-Oxidation Protein: lipid ratio Water temperature Lipid metabolism Growth Replacement fish oil Nutrition Fishes Nutrition Requirements Fishes Feeding and feeds Lipoproteins Fish Karalazos, Vasileios Bendiksen, Eldar Asgard Dick, James R Tocher, Douglas R Bell, J Gordon Influence of the dietary protein: lipid ratio and fish oil substitution on fatty acid composition and metabolism of Atlantic salmon (Salmo salar) reared at high water temperatures |
topic_facet |
Atlantic salmon Rapeseed oil PUFA beta-Oxidation Protein: lipid ratio Water temperature Lipid metabolism Growth Replacement fish oil Nutrition Fishes Nutrition Requirements Fishes Feeding and feeds Lipoproteins Fish |
description |
A factorial, two-way, experimental design was used for this 10-week nutritional trial, aiming to elucidate the interactive effects of decreasing dietary protein:lipid level and substitution of fish oil (FO) with rapeseed oil (RO) on tissue fatty acid (FA) composition and metabolism of large Atlantic salmon (Salmo salar L.) reared at high water temperatures (sub-optimal, summer temperatures: 11·6 C). The six experimental diets were isoenergetic and formulated to include either FO or RO (60% of the added oil) at three dietary protein:lipid levels, specifically (1) 350 g/kg protein and 350 g/kg lipid, (2) 330 g/kg protein and 360 g/kg lipid, (3) 290 g/kg protein and 380 g/kg lipid. Final weight, specific growth rate and thermal growth coefficient were positively affected by the dietary RO inclusion at the expense of FO, while no significant effects were seen on growth due to the decreasing protein level. The oil source had a significant effect on muscle and liver FA composition. However, the changes in muscle and liver FA indicate selective utilisation or retention of individual FA and moderate reductions in tissue EPA and DHA. Pyloric caeca phospholipid FA composition was significantly affected by the two factors and, in some cases, significant interactions were also revealed. Liver and red muscle b-oxidation capacities were significantly increased due to RO inclusion, while an interactive effect of protein level and oil source was shown for white muscle b-oxidation capacity. The results could explain, at least partially, the better performance that was shown for the RO groups and the enhanced protein-sparing effect. |
author2 |
University of Stirling BioMar AS Institute of Aquaculture orcid:0000-0002-8603-9410 |
format |
Article in Journal/Newspaper |
author |
Karalazos, Vasileios Bendiksen, Eldar Asgard Dick, James R Tocher, Douglas R Bell, J Gordon |
author_facet |
Karalazos, Vasileios Bendiksen, Eldar Asgard Dick, James R Tocher, Douglas R Bell, J Gordon |
author_sort |
Karalazos, Vasileios |
title |
Influence of the dietary protein: lipid ratio and fish oil substitution on fatty acid composition and metabolism of Atlantic salmon (Salmo salar) reared at high water temperatures |
title_short |
Influence of the dietary protein: lipid ratio and fish oil substitution on fatty acid composition and metabolism of Atlantic salmon (Salmo salar) reared at high water temperatures |
title_full |
Influence of the dietary protein: lipid ratio and fish oil substitution on fatty acid composition and metabolism of Atlantic salmon (Salmo salar) reared at high water temperatures |
title_fullStr |
Influence of the dietary protein: lipid ratio and fish oil substitution on fatty acid composition and metabolism of Atlantic salmon (Salmo salar) reared at high water temperatures |
title_full_unstemmed |
Influence of the dietary protein: lipid ratio and fish oil substitution on fatty acid composition and metabolism of Atlantic salmon (Salmo salar) reared at high water temperatures |
title_sort |
influence of the dietary protein: lipid ratio and fish oil substitution on fatty acid composition and metabolism of atlantic salmon (salmo salar) reared at high water temperatures |
publisher |
Cambridge University Press |
publishDate |
2011 |
url |
http://hdl.handle.net/1893/2775 https://doi.org/10.1017/S0007114510004605 http://journals.cambridge.org/action/displayJournal?jid=BJN http://dspace.stir.ac.uk/bitstream/1893/2775/2/Tocher-Influence%20of%20the%20dietary%20proteinlipid%20ratio%20and%20fish%20oil%20substitution.pdf http://dspace.stir.ac.uk/bitstream/1893/2775/1/Vasilis%20PL%20ratio%20salmon.pdf |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
Karalazos V, Bendiksen EA, Dick JR, Tocher DR & Bell JG (2011) Influence of the dietary protein: lipid ratio and fish oil substitution on fatty acid composition and metabolism of Atlantic salmon (Salmo salar) reared at high water temperatures. British Journal of Nutrition, 105 (7), pp. 1012-1025. http://journals.cambridge.org/action/displayJournal?jid=BJN; https://doi.org/10.1017/S0007114510004605 http://hdl.handle.net/1893/2775 doi:10.1017/S0007114510004605 http://journals.cambridge.org/action/displayJournal?jid=BJN WOS:000288748300006 2-s2.0-79955663135 837942 http://dspace.stir.ac.uk/bitstream/1893/2775/2/Tocher-Influence%20of%20the%20dietary%20proteinlipid%20ratio%20and%20fish%20oil%20substitution.pdf http://dspace.stir.ac.uk/bitstream/1893/2775/1/Vasilis%20PL%20ratio%20salmon.pdf |
op_rights |
Published in British Journal of Nutrition. Copyright: Cambridge University Press, 2010. This paper has been accepted for publication and will appear in a revised form, subsequent to editorial input by Cambridge University Press, in British Journal of Nutrition, Volume 105, Issue 7, 2011, pp. 1012 - 1025, published by Cambridge University Press, Copyright © Cambridge University Press 2011. http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8207491 2012-04-18 [Tocher-Influence of the dietary proteinlipid ratio and fish oil substitution.pdf] Publisher requires the Author refereed version to be embargoed until 12 months after official publication. Publisher version is permanently embargoed. [Vasilis PL ratio salmon.pdf] Publisher requires the Author refereed version to be embargoed until 12 months after official publication. Publisher version is permanently embargoed. |
op_doi |
https://doi.org/10.1017/S0007114510004605 |
container_title |
British Journal of Nutrition |
container_volume |
105 |
container_issue |
7 |
container_start_page |
1012 |
op_container_end_page |
1025 |
_version_ |
1766361732619436032 |
spelling |
ftunivstirling:oai:dspace.stir.ac.uk:1893/2775 2023-05-15T15:31:14+02:00 Influence of the dietary protein: lipid ratio and fish oil substitution on fatty acid composition and metabolism of Atlantic salmon (Salmo salar) reared at high water temperatures Karalazos, Vasileios Bendiksen, Eldar Asgard Dick, James R Tocher, Douglas R Bell, J Gordon University of Stirling BioMar AS Institute of Aquaculture orcid:0000-0002-8603-9410 2011-04-14 application/pdf http://hdl.handle.net/1893/2775 https://doi.org/10.1017/S0007114510004605 http://journals.cambridge.org/action/displayJournal?jid=BJN http://dspace.stir.ac.uk/bitstream/1893/2775/2/Tocher-Influence%20of%20the%20dietary%20proteinlipid%20ratio%20and%20fish%20oil%20substitution.pdf http://dspace.stir.ac.uk/bitstream/1893/2775/1/Vasilis%20PL%20ratio%20salmon.pdf en eng Cambridge University Press Karalazos V, Bendiksen EA, Dick JR, Tocher DR & Bell JG (2011) Influence of the dietary protein: lipid ratio and fish oil substitution on fatty acid composition and metabolism of Atlantic salmon (Salmo salar) reared at high water temperatures. British Journal of Nutrition, 105 (7), pp. 1012-1025. http://journals.cambridge.org/action/displayJournal?jid=BJN; https://doi.org/10.1017/S0007114510004605 http://hdl.handle.net/1893/2775 doi:10.1017/S0007114510004605 http://journals.cambridge.org/action/displayJournal?jid=BJN WOS:000288748300006 2-s2.0-79955663135 837942 http://dspace.stir.ac.uk/bitstream/1893/2775/2/Tocher-Influence%20of%20the%20dietary%20proteinlipid%20ratio%20and%20fish%20oil%20substitution.pdf http://dspace.stir.ac.uk/bitstream/1893/2775/1/Vasilis%20PL%20ratio%20salmon.pdf Published in British Journal of Nutrition. Copyright: Cambridge University Press, 2010. This paper has been accepted for publication and will appear in a revised form, subsequent to editorial input by Cambridge University Press, in British Journal of Nutrition, Volume 105, Issue 7, 2011, pp. 1012 - 1025, published by Cambridge University Press, Copyright © Cambridge University Press 2011. http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8207491 2012-04-18 [Tocher-Influence of the dietary proteinlipid ratio and fish oil substitution.pdf] Publisher requires the Author refereed version to be embargoed until 12 months after official publication. Publisher version is permanently embargoed. [Vasilis PL ratio salmon.pdf] Publisher requires the Author refereed version to be embargoed until 12 months after official publication. Publisher version is permanently embargoed. Atlantic salmon Rapeseed oil PUFA beta-Oxidation Protein: lipid ratio Water temperature Lipid metabolism Growth Replacement fish oil Nutrition Fishes Nutrition Requirements Fishes Feeding and feeds Lipoproteins Fish Journal Article AM - Accepted Manuscript 2011 ftunivstirling https://doi.org/10.1017/S0007114510004605 2022-06-13T18:45:51Z A factorial, two-way, experimental design was used for this 10-week nutritional trial, aiming to elucidate the interactive effects of decreasing dietary protein:lipid level and substitution of fish oil (FO) with rapeseed oil (RO) on tissue fatty acid (FA) composition and metabolism of large Atlantic salmon (Salmo salar L.) reared at high water temperatures (sub-optimal, summer temperatures: 11·6 C). The six experimental diets were isoenergetic and formulated to include either FO or RO (60% of the added oil) at three dietary protein:lipid levels, specifically (1) 350 g/kg protein and 350 g/kg lipid, (2) 330 g/kg protein and 360 g/kg lipid, (3) 290 g/kg protein and 380 g/kg lipid. Final weight, specific growth rate and thermal growth coefficient were positively affected by the dietary RO inclusion at the expense of FO, while no significant effects were seen on growth due to the decreasing protein level. The oil source had a significant effect on muscle and liver FA composition. However, the changes in muscle and liver FA indicate selective utilisation or retention of individual FA and moderate reductions in tissue EPA and DHA. Pyloric caeca phospholipid FA composition was significantly affected by the two factors and, in some cases, significant interactions were also revealed. Liver and red muscle b-oxidation capacities were significantly increased due to RO inclusion, while an interactive effect of protein level and oil source was shown for white muscle b-oxidation capacity. The results could explain, at least partially, the better performance that was shown for the RO groups and the enhanced protein-sparing effect. Article in Journal/Newspaper Atlantic salmon Salmo salar University of Stirling: Stirling Digital Research Repository British Journal of Nutrition 105 7 1012 1025 |