Atlantic salmon (Salmo salar) postsmolts adapt lipid digestion according to elevated dietary wax esters from Calanus finmarchicus
Wax esters in copepods constitute huge natural marine lipid resources, which can contribute as future lipid source in formulated diets in aquaculture, and thereby reduce the pressure on use of marine resources at higher trophic levels. The present study was undertaken to investigate factors affectin...
Published in: | Aquaculture Nutrition |
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Format: | Article in Journal/Newspaper |
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2009
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Online Access: | http://hdl.handle.net/1893/757 https://doi.org/10.1111/j.1365-2095.2008.00571.x http://dspace.stir.ac.uk/bitstream/1893/757/1/Bogevik%20et%20al2009.pdf |
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ftunivstirling:oai:dspace.stir.ac.uk:1893/757 2023-05-15T15:29:58+02:00 Atlantic salmon (Salmo salar) postsmolts adapt lipid digestion according to elevated dietary wax esters from Calanus finmarchicus Bogevik, Andre S Tocher, Douglas R Langmyhr, Eyolf Waagbo, Rune Olsen, Rolf E Matre Aquaculture Research Station Institute of Aquaculture NOFIMA AS National Institute of Nutrition and Seafood Research (NIFES) orcid:0000-0002-8603-9410 2009-02 application/pdf http://hdl.handle.net/1893/757 https://doi.org/10.1111/j.1365-2095.2008.00571.x http://dspace.stir.ac.uk/bitstream/1893/757/1/Bogevik%20et%20al2009.pdf en eng Blackwell Publishing Bogevik AS, Tocher DR, Langmyhr E, Waagbo R & Olsen RE (2009) Atlantic salmon (Salmo salar) postsmolts adapt lipid digestion according to elevated dietary wax esters from Calanus finmarchicus. Aquaculture Nutrition, 15 (1), pp. 94-103. https://doi.org/10.1111/j.1365-2095.2008.00571.x http://hdl.handle.net/1893/757 doi:10.1111/j.1365-2095.2008.00571.x WOS:000262282000010 2-s2.0-58149235031 837593 http://dspace.stir.ac.uk/bitstream/1893/757/1/Bogevik%20et%20al2009.pdf Published by Blackwell Publishing, copyright 2009. The definitive version is available at onlinelibrary.wiley.com 2010-03-29 [Bogevik et al2009.pdf] Publisher requires 12 month embargo Salmon Wax esters Copepod oil Digestion Growth Digestibility Lipolysis bile Atlantic salmon Fishes Feeding and feeds Fishes Nutrition Copepoda Journal Article AM - Accepted Manuscript 2009 ftunivstirling https://doi.org/10.1111/j.1365-2095.2008.00571.x 2022-06-13T18:42:15Z Wax esters in copepods constitute huge natural marine lipid resources, which can contribute as future lipid source in formulated diets in aquaculture, and thereby reduce the pressure on use of marine resources at higher trophic levels. The present study was undertaken to investigate factors affecting wax ester digestibility, including production of bile and lipases, in Atlantic salmon fed diets containing high proportions of an oil derived from copepods. Individually tagged postsmolt Atlantic salmon (initial weight 250 g) were distributed into three dietary groups in triplicate tanks and fed either a fish oil supplemented diet, or diets where 50% or 100% of the fish oil was replaced with oil extracted from Calanus finmarchicus. Wax esters accounted for 307 or 477 g kg-1 of the lipids in these latter diets, respectively. Over the 100 day feeding period, the salmon fed the fish oil diet displayed a significantly higher specific growth rate (SGR; 0.74) than fish fed the 100% Calanus oil diet (SGR; 0.67). The apparent digestibility coefficient of total lipid and total fatty acids was significantly higher in salmon fed the fish oil and the mixed diet than in fish fed the pure Calanus oil diet. However, the fish appeared to adjust lipid digestibility to the increased intake of wax ester by enhancing bile volume and the lipolytic activity. The study indicates that Atlantic salmon show adaptations in digestion to elevated dietary wax ester intakes, however with an upper limit for optimal utilization in practical diets. Article in Journal/Newspaper Atlantic salmon Calanus finmarchicus Salmo salar Copepods University of Stirling: Stirling Digital Research Repository Aquaculture Nutrition 15 1 94 103 |
institution |
Open Polar |
collection |
University of Stirling: Stirling Digital Research Repository |
op_collection_id |
ftunivstirling |
language |
English |
topic |
Salmon Wax esters Copepod oil Digestion Growth Digestibility Lipolysis bile Atlantic salmon Fishes Feeding and feeds Fishes Nutrition Copepoda |
spellingShingle |
Salmon Wax esters Copepod oil Digestion Growth Digestibility Lipolysis bile Atlantic salmon Fishes Feeding and feeds Fishes Nutrition Copepoda Bogevik, Andre S Tocher, Douglas R Langmyhr, Eyolf Waagbo, Rune Olsen, Rolf E Atlantic salmon (Salmo salar) postsmolts adapt lipid digestion according to elevated dietary wax esters from Calanus finmarchicus |
topic_facet |
Salmon Wax esters Copepod oil Digestion Growth Digestibility Lipolysis bile Atlantic salmon Fishes Feeding and feeds Fishes Nutrition Copepoda |
description |
Wax esters in copepods constitute huge natural marine lipid resources, which can contribute as future lipid source in formulated diets in aquaculture, and thereby reduce the pressure on use of marine resources at higher trophic levels. The present study was undertaken to investigate factors affecting wax ester digestibility, including production of bile and lipases, in Atlantic salmon fed diets containing high proportions of an oil derived from copepods. Individually tagged postsmolt Atlantic salmon (initial weight 250 g) were distributed into three dietary groups in triplicate tanks and fed either a fish oil supplemented diet, or diets where 50% or 100% of the fish oil was replaced with oil extracted from Calanus finmarchicus. Wax esters accounted for 307 or 477 g kg-1 of the lipids in these latter diets, respectively. Over the 100 day feeding period, the salmon fed the fish oil diet displayed a significantly higher specific growth rate (SGR; 0.74) than fish fed the 100% Calanus oil diet (SGR; 0.67). The apparent digestibility coefficient of total lipid and total fatty acids was significantly higher in salmon fed the fish oil and the mixed diet than in fish fed the pure Calanus oil diet. However, the fish appeared to adjust lipid digestibility to the increased intake of wax ester by enhancing bile volume and the lipolytic activity. The study indicates that Atlantic salmon show adaptations in digestion to elevated dietary wax ester intakes, however with an upper limit for optimal utilization in practical diets. |
author2 |
Matre Aquaculture Research Station Institute of Aquaculture NOFIMA AS National Institute of Nutrition and Seafood Research (NIFES) orcid:0000-0002-8603-9410 |
format |
Article in Journal/Newspaper |
author |
Bogevik, Andre S Tocher, Douglas R Langmyhr, Eyolf Waagbo, Rune Olsen, Rolf E |
author_facet |
Bogevik, Andre S Tocher, Douglas R Langmyhr, Eyolf Waagbo, Rune Olsen, Rolf E |
author_sort |
Bogevik, Andre S |
title |
Atlantic salmon (Salmo salar) postsmolts adapt lipid digestion according to elevated dietary wax esters from Calanus finmarchicus |
title_short |
Atlantic salmon (Salmo salar) postsmolts adapt lipid digestion according to elevated dietary wax esters from Calanus finmarchicus |
title_full |
Atlantic salmon (Salmo salar) postsmolts adapt lipid digestion according to elevated dietary wax esters from Calanus finmarchicus |
title_fullStr |
Atlantic salmon (Salmo salar) postsmolts adapt lipid digestion according to elevated dietary wax esters from Calanus finmarchicus |
title_full_unstemmed |
Atlantic salmon (Salmo salar) postsmolts adapt lipid digestion according to elevated dietary wax esters from Calanus finmarchicus |
title_sort |
atlantic salmon (salmo salar) postsmolts adapt lipid digestion according to elevated dietary wax esters from calanus finmarchicus |
publisher |
Blackwell Publishing |
publishDate |
2009 |
url |
http://hdl.handle.net/1893/757 https://doi.org/10.1111/j.1365-2095.2008.00571.x http://dspace.stir.ac.uk/bitstream/1893/757/1/Bogevik%20et%20al2009.pdf |
genre |
Atlantic salmon Calanus finmarchicus Salmo salar Copepods |
genre_facet |
Atlantic salmon Calanus finmarchicus Salmo salar Copepods |
op_relation |
Bogevik AS, Tocher DR, Langmyhr E, Waagbo R & Olsen RE (2009) Atlantic salmon (Salmo salar) postsmolts adapt lipid digestion according to elevated dietary wax esters from Calanus finmarchicus. Aquaculture Nutrition, 15 (1), pp. 94-103. https://doi.org/10.1111/j.1365-2095.2008.00571.x http://hdl.handle.net/1893/757 doi:10.1111/j.1365-2095.2008.00571.x WOS:000262282000010 2-s2.0-58149235031 837593 http://dspace.stir.ac.uk/bitstream/1893/757/1/Bogevik%20et%20al2009.pdf |
op_rights |
Published by Blackwell Publishing, copyright 2009. The definitive version is available at onlinelibrary.wiley.com 2010-03-29 [Bogevik et al2009.pdf] Publisher requires 12 month embargo |
op_doi |
https://doi.org/10.1111/j.1365-2095.2008.00571.x |
container_title |
Aquaculture Nutrition |
container_volume |
15 |
container_issue |
1 |
container_start_page |
94 |
op_container_end_page |
103 |
_version_ |
1766360423430356992 |