Increasing dietary levels of the omega-3 long-chain polyunsaturated fatty acids, EPA and DHA, improves the growth, welfare, robustness, and fillet quality of Atlantic salmon in sea cages

The present study evaluated the effects of increasing the dietary levels of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in Atlantic salmon (Salmo salar) reared in sea cages, in terms of growth performance, welfare, robustness, and overall quality. Fish with an average starting weight...

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Published in:British Journal of Nutrition
Main Authors: Lutfi Royo, Esmail, Berge, Gerd Marit, Bæverfjord, Grete, Sigholt, Trygve, Bou, Marta, Larsson, Thomas, Mørkøre, Turid, Evensen, Øystein, Sissener, Nini, Rosenlund, Grethe, Sveen, Lene, Østbye, Tone-Kari K, Ruyter, Bente Synnøve
Format: Article in Journal/Newspaper
Language:English
Published: 2022
Subjects:
Online Access:https://hdl.handle.net/11250/2991030
https://doi.org/10.1017/S0007114522000642
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spelling ftnofima:oai:nofima.brage.unit.no:11250/2991030 2023-05-15T15:30:31+02:00 Increasing dietary levels of the omega-3 long-chain polyunsaturated fatty acids, EPA and DHA, improves the growth, welfare, robustness, and fillet quality of Atlantic salmon in sea cages Lutfi Royo, Esmail Berge, Gerd Marit Bæverfjord, Grete Sigholt, Trygve Bou, Marta Larsson, Thomas Mørkøre, Turid Evensen, Øystein Sissener, Nini Rosenlund, Grethe Sveen, Lene Østbye, Tone-Kari K Ruyter, Bente Synnøve 2022 application/pdf https://hdl.handle.net/11250/2991030 https://doi.org/10.1017/S0007114522000642 eng eng Norges forskningsråd: 273202 Fiskeri- og havbruksnæringens forskningsfinansiering: 901487 Fiskeri- og havbruksnæringens forskningsfinansiering: 901282 British Journal of Nutrition. 2022, 1-48. urn:issn:0007-1145 https://hdl.handle.net/11250/2991030 https://doi.org/10.1017/S0007114522000642 cristin:2011719 1-48 British Journal of Nutrition Peer reviewed Journal article 2022 ftnofima https://doi.org/10.1017/S0007114522000642 2023-02-13T09:34:33Z The present study evaluated the effects of increasing the dietary levels of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in Atlantic salmon (Salmo salar) reared in sea cages, in terms of growth performance, welfare, robustness, and overall quality. Fish with an average starting weight of 275 g were fed one of four different diets containing 10, 13, 16, and 35 g/kg of EPA and DHA (designated as 1.0%, 1.3%, 1.6%, and 3.5% EPA and DHA) until they reached approximately 5 kg. The 3.5% EPA and DHA diet showed a significantly beneficial effect on growth performance and fillet quality compared with all other diets, particularly the 1% EPA and DHA diet. Fish fed the diet containing 3.5% EPA and DHA showed 400-600 g higher final weights, improved internal organ health scores and external welfare indicators, better fillet quality in terms of higher visual colour score and lower occurrence of dark spots, and higher EPA and DHA content in tissues at the end of the feeding trial. Moreover, fish fed the 3.5% EPA and DHA diet showed lower mortality during a naturally occurring cardiomyopathy syndrome outbreak, although this did not reach statistical significance. Altogether, our findings emphasise the importance of dietary EPA and DHA to maintain good growth, robustness, welfare, and fillet quality of Atlantic salmon reared in sea cages. Increasing dietary levels of the omega-3 long-chain polyunsaturated fatty acids, EPA and DHA, improves the growth, welfare, robustness, and fillet quality of Atlantic salmon in sea cages acceptedVersion publishedVersion Article in Journal/Newspaper Atlantic salmon Salmo salar Nofima Knowledge Archive (Brage) British Journal of Nutrition 1 19
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description The present study evaluated the effects of increasing the dietary levels of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in Atlantic salmon (Salmo salar) reared in sea cages, in terms of growth performance, welfare, robustness, and overall quality. Fish with an average starting weight of 275 g were fed one of four different diets containing 10, 13, 16, and 35 g/kg of EPA and DHA (designated as 1.0%, 1.3%, 1.6%, and 3.5% EPA and DHA) until they reached approximately 5 kg. The 3.5% EPA and DHA diet showed a significantly beneficial effect on growth performance and fillet quality compared with all other diets, particularly the 1% EPA and DHA diet. Fish fed the diet containing 3.5% EPA and DHA showed 400-600 g higher final weights, improved internal organ health scores and external welfare indicators, better fillet quality in terms of higher visual colour score and lower occurrence of dark spots, and higher EPA and DHA content in tissues at the end of the feeding trial. Moreover, fish fed the 3.5% EPA and DHA diet showed lower mortality during a naturally occurring cardiomyopathy syndrome outbreak, although this did not reach statistical significance. Altogether, our findings emphasise the importance of dietary EPA and DHA to maintain good growth, robustness, welfare, and fillet quality of Atlantic salmon reared in sea cages. Increasing dietary levels of the omega-3 long-chain polyunsaturated fatty acids, EPA and DHA, improves the growth, welfare, robustness, and fillet quality of Atlantic salmon in sea cages acceptedVersion publishedVersion
format Article in Journal/Newspaper
author Lutfi Royo, Esmail
Berge, Gerd Marit
Bæverfjord, Grete
Sigholt, Trygve
Bou, Marta
Larsson, Thomas
Mørkøre, Turid
Evensen, Øystein
Sissener, Nini
Rosenlund, Grethe
Sveen, Lene
Østbye, Tone-Kari K
Ruyter, Bente Synnøve
spellingShingle Lutfi Royo, Esmail
Berge, Gerd Marit
Bæverfjord, Grete
Sigholt, Trygve
Bou, Marta
Larsson, Thomas
Mørkøre, Turid
Evensen, Øystein
Sissener, Nini
Rosenlund, Grethe
Sveen, Lene
Østbye, Tone-Kari K
Ruyter, Bente Synnøve
Increasing dietary levels of the omega-3 long-chain polyunsaturated fatty acids, EPA and DHA, improves the growth, welfare, robustness, and fillet quality of Atlantic salmon in sea cages
author_facet Lutfi Royo, Esmail
Berge, Gerd Marit
Bæverfjord, Grete
Sigholt, Trygve
Bou, Marta
Larsson, Thomas
Mørkøre, Turid
Evensen, Øystein
Sissener, Nini
Rosenlund, Grethe
Sveen, Lene
Østbye, Tone-Kari K
Ruyter, Bente Synnøve
author_sort Lutfi Royo, Esmail
title Increasing dietary levels of the omega-3 long-chain polyunsaturated fatty acids, EPA and DHA, improves the growth, welfare, robustness, and fillet quality of Atlantic salmon in sea cages
title_short Increasing dietary levels of the omega-3 long-chain polyunsaturated fatty acids, EPA and DHA, improves the growth, welfare, robustness, and fillet quality of Atlantic salmon in sea cages
title_full Increasing dietary levels of the omega-3 long-chain polyunsaturated fatty acids, EPA and DHA, improves the growth, welfare, robustness, and fillet quality of Atlantic salmon in sea cages
title_fullStr Increasing dietary levels of the omega-3 long-chain polyunsaturated fatty acids, EPA and DHA, improves the growth, welfare, robustness, and fillet quality of Atlantic salmon in sea cages
title_full_unstemmed Increasing dietary levels of the omega-3 long-chain polyunsaturated fatty acids, EPA and DHA, improves the growth, welfare, robustness, and fillet quality of Atlantic salmon in sea cages
title_sort increasing dietary levels of the omega-3 long-chain polyunsaturated fatty acids, epa and dha, improves the growth, welfare, robustness, and fillet quality of atlantic salmon in sea cages
publishDate 2022
url https://hdl.handle.net/11250/2991030
https://doi.org/10.1017/S0007114522000642
genre Atlantic salmon
Salmo salar
genre_facet Atlantic salmon
Salmo salar
op_source 1-48
British Journal of Nutrition
op_relation Norges forskningsråd: 273202
Fiskeri- og havbruksnæringens forskningsfinansiering: 901487
Fiskeri- og havbruksnæringens forskningsfinansiering: 901282
British Journal of Nutrition. 2022, 1-48.
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https://hdl.handle.net/11250/2991030
https://doi.org/10.1017/S0007114522000642
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op_doi https://doi.org/10.1017/S0007114522000642
container_title British Journal of Nutrition
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