Total replacement of marine oil by rapeseed oil in plant protein rich diets of juvenile lumpfish (Cyclopterus lumpus) : Effects on growth performance, chemical and fatty acid composition
Lumpfish is used to control sea lice in open net-pen farming of Atlantic salmon, but little is known about their nutritional requirements. The aim of this study was to investigate the effects of replacing marine oil (MO) with rapeseed oil (RO), in diets incorporating 50 % plant protein concentrates,...
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ftnorduniv:oai:nordopen.nord.no:11250/2730564 2023-05-15T15:33:01+02:00 Total replacement of marine oil by rapeseed oil in plant protein rich diets of juvenile lumpfish (Cyclopterus lumpus) : Effects on growth performance, chemical and fatty acid composition Willora, Florence Perera Grønevik, Bjørn Frode Liu, Cui Palihawadana, Anjana Mahesh Sørensen, Mette Hagen, Ørjan 2020 application/pdf https://hdl.handle.net/11250/2730564 https://doi.org/10.1016/j.aqrep.2020.100560 eng eng Elsevier Nordland fylkeskommune: 119025 Innovation Norway: 119025 Willora, F. P., Grønevik, B., Liu, C., Palihawadana, A., Sørensen, M. & Hagen, Ø. (2021). Total replacement of marine oil by rapeseed oil in plant protein rich diets of juvenile lumpfish (Cyclopterus lumpus): Effects on growth performance, chemical and fatty acid composition. Aquaculture Reports, 19: 100560. doi: urn:issn:2352-5134 https://hdl.handle.net/11250/2730564 https://doi.org/10.1016/j.aqrep.2020.100560 cristin:1891454 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2020 The Author(s) CC-BY 11 19 Aquaculture Reports 100560 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Akvakultur: 922 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fiskehelse: 923 VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Molekylærbiologi: 473 Peer reviewed Journal article 2020 ftnorduniv https://doi.org/10.1016/j.aqrep.2020.100560 2021-07-13T18:13:19Z Lumpfish is used to control sea lice in open net-pen farming of Atlantic salmon, but little is known about their nutritional requirements. The aim of this study was to investigate the effects of replacing marine oil (MO) with rapeseed oil (RO), in diets incorporating 50 % plant protein concentrates, on the growth, chemical and fatty acid (FA) composition of juvenile lumpfish. Four extruded diets, nearly iso-lipidic (14–15% DM) and iso-nitrogenous (53–54% DM) were produced with either 10 % MO (fish oil : krill oil constant proportion 2.3 : 1; Control), or the MO replaced with either 25 %, 50 % or 100 % replacement with RO to give the diets identified as RO25, RO50 and RO100, respectively. Triplicate groups of fish (7 ± 0.18 g) were fed the experimental diets ad libitum during 6 weeks. No significant effects were found on growth parameters, specific growth rate, hepatosomatic index (HSI), visero-somatic index, condition factor (CF), and whole body chemical composition when 50 % of MO was replaced by RO. Monounsaturated fatty acids (MUFA) and polyunsaturated fatty acids (PUFA) in whole body, liver and muscles were also not affected by the 50 % replacement of MO. Total substitution of MO with RO significantly reduced the growth performance, and CF, but increased the HSI, and crude lipid in whole body and liver, accompanied by lipid deposition. At the end of the experiment, saturated fatty acids (SFA), PUFA, n-3 FA and eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA) in whole body, muscles, and liver decreased (p < 0.05), while MUFA, and total n-6 FA increased (p < 0.05) in fish fed RO100. In conclusion, the results of the present study suggest that dietary inclusion of 50 % RO in diets where the protein content was derived from marine/plant origin (50/50), did not impair the growth of juvenile lumpfish. publishedVersion Unit License Agreement Article in Journal/Newspaper Atlantic salmon Open archive Nord universitet Aquaculture Reports 19 100560 |
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Open Polar |
collection |
Open archive Nord universitet |
op_collection_id |
ftnorduniv |
language |
English |
topic |
VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Akvakultur: 922 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fiskehelse: 923 VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Molekylærbiologi: 473 |
spellingShingle |
VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Akvakultur: 922 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fiskehelse: 923 VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Molekylærbiologi: 473 Willora, Florence Perera Grønevik, Bjørn Frode Liu, Cui Palihawadana, Anjana Mahesh Sørensen, Mette Hagen, Ørjan Total replacement of marine oil by rapeseed oil in plant protein rich diets of juvenile lumpfish (Cyclopterus lumpus) : Effects on growth performance, chemical and fatty acid composition |
topic_facet |
VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Akvakultur: 922 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fiskehelse: 923 VDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470::Molekylærbiologi: 473 |
description |
Lumpfish is used to control sea lice in open net-pen farming of Atlantic salmon, but little is known about their nutritional requirements. The aim of this study was to investigate the effects of replacing marine oil (MO) with rapeseed oil (RO), in diets incorporating 50 % plant protein concentrates, on the growth, chemical and fatty acid (FA) composition of juvenile lumpfish. Four extruded diets, nearly iso-lipidic (14–15% DM) and iso-nitrogenous (53–54% DM) were produced with either 10 % MO (fish oil : krill oil constant proportion 2.3 : 1; Control), or the MO replaced with either 25 %, 50 % or 100 % replacement with RO to give the diets identified as RO25, RO50 and RO100, respectively. Triplicate groups of fish (7 ± 0.18 g) were fed the experimental diets ad libitum during 6 weeks. No significant effects were found on growth parameters, specific growth rate, hepatosomatic index (HSI), visero-somatic index, condition factor (CF), and whole body chemical composition when 50 % of MO was replaced by RO. Monounsaturated fatty acids (MUFA) and polyunsaturated fatty acids (PUFA) in whole body, liver and muscles were also not affected by the 50 % replacement of MO. Total substitution of MO with RO significantly reduced the growth performance, and CF, but increased the HSI, and crude lipid in whole body and liver, accompanied by lipid deposition. At the end of the experiment, saturated fatty acids (SFA), PUFA, n-3 FA and eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA) in whole body, muscles, and liver decreased (p < 0.05), while MUFA, and total n-6 FA increased (p < 0.05) in fish fed RO100. In conclusion, the results of the present study suggest that dietary inclusion of 50 % RO in diets where the protein content was derived from marine/plant origin (50/50), did not impair the growth of juvenile lumpfish. publishedVersion Unit License Agreement |
format |
Article in Journal/Newspaper |
author |
Willora, Florence Perera Grønevik, Bjørn Frode Liu, Cui Palihawadana, Anjana Mahesh Sørensen, Mette Hagen, Ørjan |
author_facet |
Willora, Florence Perera Grønevik, Bjørn Frode Liu, Cui Palihawadana, Anjana Mahesh Sørensen, Mette Hagen, Ørjan |
author_sort |
Willora, Florence Perera |
title |
Total replacement of marine oil by rapeseed oil in plant protein rich diets of juvenile lumpfish (Cyclopterus lumpus) : Effects on growth performance, chemical and fatty acid composition |
title_short |
Total replacement of marine oil by rapeseed oil in plant protein rich diets of juvenile lumpfish (Cyclopterus lumpus) : Effects on growth performance, chemical and fatty acid composition |
title_full |
Total replacement of marine oil by rapeseed oil in plant protein rich diets of juvenile lumpfish (Cyclopterus lumpus) : Effects on growth performance, chemical and fatty acid composition |
title_fullStr |
Total replacement of marine oil by rapeseed oil in plant protein rich diets of juvenile lumpfish (Cyclopterus lumpus) : Effects on growth performance, chemical and fatty acid composition |
title_full_unstemmed |
Total replacement of marine oil by rapeseed oil in plant protein rich diets of juvenile lumpfish (Cyclopterus lumpus) : Effects on growth performance, chemical and fatty acid composition |
title_sort |
total replacement of marine oil by rapeseed oil in plant protein rich diets of juvenile lumpfish (cyclopterus lumpus) : effects on growth performance, chemical and fatty acid composition |
publisher |
Elsevier |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2730564 https://doi.org/10.1016/j.aqrep.2020.100560 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
11 19 Aquaculture Reports 100560 |
op_relation |
Nordland fylkeskommune: 119025 Innovation Norway: 119025 Willora, F. P., Grønevik, B., Liu, C., Palihawadana, A., Sørensen, M. & Hagen, Ø. (2021). Total replacement of marine oil by rapeseed oil in plant protein rich diets of juvenile lumpfish (Cyclopterus lumpus): Effects on growth performance, chemical and fatty acid composition. Aquaculture Reports, 19: 100560. doi: urn:issn:2352-5134 https://hdl.handle.net/11250/2730564 https://doi.org/10.1016/j.aqrep.2020.100560 cristin:1891454 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2020 The Author(s) |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.aqrep.2020.100560 |
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Aquaculture Reports |
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100560 |
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