The effects of dietary lipid and strain difference on polyunsaturated fatty acid composition and conversion in anadromous and landlocked salmon (Salmo salar L.) parr.
Five experimental diets containing different proportions of olive, sunflower and linseed oils were used in a 55-day feeding trial on both anadromous and landlocked parr of Atlantic salmon (Salmo salar) of the same age, in order to study the effects of diet and strain on growth and fatty acid composi...
Published in: | Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology |
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Online Access: | http://hdl.handle.net/2078.1/9371 https://doi.org/10.1016/S1096-4959(02)00264-6 |
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ftunistlouisbrus:oai:dial.uclouvain.be:boreal:9371 2024-05-12T08:01:23+00:00 The effects of dietary lipid and strain difference on polyunsaturated fatty acid composition and conversion in anadromous and landlocked salmon (Salmo salar L.) parr. Rollin, Xavier Peng, Jinglan Pham, Diep Ackman, Robert G Larondelle, Yvan UCL - AGRO/BAPA - Département de biologie appliquée et des productions agricoles 2003 http://hdl.handle.net/2078.1/9371 https://doi.org/10.1016/S1096-4959(02)00264-6 eng eng boreal:9371 http://hdl.handle.net/2078.1/9371 doi:10.1016/S1096-4959(02)00264-6 info:pmid/12568812 urn:ISSN:1096-4959 Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology, Vol. 134, no. 2, p. 349-66 (2003) Adipose Tissue Animals Atlantic Ocean Body Composition Data Interpretation Statistical Diet Dietary Fats Fatty Acids Unsaturated Linoleic Acid Plant Oils Salmo salar info:eu-repo/semantics/article 2003 ftunistlouisbrus https://doi.org/10.1016/S1096-4959(02)00264-6 2024-04-18T18:22:36Z Five experimental diets containing different proportions of olive, sunflower and linseed oils were used in a 55-day feeding trial on both anadromous and landlocked parr of Atlantic salmon (Salmo salar) of the same age, in order to study the effects of diet and strain on growth and fatty acid composition and absolute gains in fish whole body triacylglycerols (TAG) and phospholipids (PL). Growth rate was higher in landlocked than in anadromous parr, but not between the different diets. By contrast, the effect of diet on whole body fatty acid composition was much more pronounced than that of strain difference. The fatty acids deposition results establish significant (P<0.05) positive correlations and linear relationships between the percentage of several fatty acids (18:1n-9, 18:2n-6, 18:3n-3) in dietary lipids and their absolute gains in whole body TAG and PL of both stocks. They also indicate the selective deposition of 18:1n-9 compared with linoleic acid (LLA) and linolenic acid (LNA). Finally, the results suggest the occurrence of the conversion of LLA and LNA to long-chain polyunsaturated fatty acids, its stimulation by increased substrate availability, a significantly higher n-3 and n-6 polyunsaturated fatty acids conversion capacity in landlocked than in anadromous parr and a strong genetic influence on docosahexaenoic acid content in salmon parr PL. Article in Journal/Newspaper Atlantic salmon Salmo salar DIAL@USL-B (Université Saint-Louis, Bruxelles) Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology 134 2 349 366 |
institution |
Open Polar |
collection |
DIAL@USL-B (Université Saint-Louis, Bruxelles) |
op_collection_id |
ftunistlouisbrus |
language |
English |
topic |
Adipose Tissue Animals Atlantic Ocean Body Composition Data Interpretation Statistical Diet Dietary Fats Fatty Acids Unsaturated Linoleic Acid Plant Oils Salmo salar |
spellingShingle |
Adipose Tissue Animals Atlantic Ocean Body Composition Data Interpretation Statistical Diet Dietary Fats Fatty Acids Unsaturated Linoleic Acid Plant Oils Salmo salar Rollin, Xavier Peng, Jinglan Pham, Diep Ackman, Robert G Larondelle, Yvan The effects of dietary lipid and strain difference on polyunsaturated fatty acid composition and conversion in anadromous and landlocked salmon (Salmo salar L.) parr. |
topic_facet |
Adipose Tissue Animals Atlantic Ocean Body Composition Data Interpretation Statistical Diet Dietary Fats Fatty Acids Unsaturated Linoleic Acid Plant Oils Salmo salar |
description |
Five experimental diets containing different proportions of olive, sunflower and linseed oils were used in a 55-day feeding trial on both anadromous and landlocked parr of Atlantic salmon (Salmo salar) of the same age, in order to study the effects of diet and strain on growth and fatty acid composition and absolute gains in fish whole body triacylglycerols (TAG) and phospholipids (PL). Growth rate was higher in landlocked than in anadromous parr, but not between the different diets. By contrast, the effect of diet on whole body fatty acid composition was much more pronounced than that of strain difference. The fatty acids deposition results establish significant (P<0.05) positive correlations and linear relationships between the percentage of several fatty acids (18:1n-9, 18:2n-6, 18:3n-3) in dietary lipids and their absolute gains in whole body TAG and PL of both stocks. They also indicate the selective deposition of 18:1n-9 compared with linoleic acid (LLA) and linolenic acid (LNA). Finally, the results suggest the occurrence of the conversion of LLA and LNA to long-chain polyunsaturated fatty acids, its stimulation by increased substrate availability, a significantly higher n-3 and n-6 polyunsaturated fatty acids conversion capacity in landlocked than in anadromous parr and a strong genetic influence on docosahexaenoic acid content in salmon parr PL. |
author2 |
UCL - AGRO/BAPA - Département de biologie appliquée et des productions agricoles |
format |
Article in Journal/Newspaper |
author |
Rollin, Xavier Peng, Jinglan Pham, Diep Ackman, Robert G Larondelle, Yvan |
author_facet |
Rollin, Xavier Peng, Jinglan Pham, Diep Ackman, Robert G Larondelle, Yvan |
author_sort |
Rollin, Xavier |
title |
The effects of dietary lipid and strain difference on polyunsaturated fatty acid composition and conversion in anadromous and landlocked salmon (Salmo salar L.) parr. |
title_short |
The effects of dietary lipid and strain difference on polyunsaturated fatty acid composition and conversion in anadromous and landlocked salmon (Salmo salar L.) parr. |
title_full |
The effects of dietary lipid and strain difference on polyunsaturated fatty acid composition and conversion in anadromous and landlocked salmon (Salmo salar L.) parr. |
title_fullStr |
The effects of dietary lipid and strain difference on polyunsaturated fatty acid composition and conversion in anadromous and landlocked salmon (Salmo salar L.) parr. |
title_full_unstemmed |
The effects of dietary lipid and strain difference on polyunsaturated fatty acid composition and conversion in anadromous and landlocked salmon (Salmo salar L.) parr. |
title_sort |
effects of dietary lipid and strain difference on polyunsaturated fatty acid composition and conversion in anadromous and landlocked salmon (salmo salar l.) parr. |
publishDate |
2003 |
url |
http://hdl.handle.net/2078.1/9371 https://doi.org/10.1016/S1096-4959(02)00264-6 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology, Vol. 134, no. 2, p. 349-66 (2003) |
op_relation |
boreal:9371 http://hdl.handle.net/2078.1/9371 doi:10.1016/S1096-4959(02)00264-6 info:pmid/12568812 urn:ISSN:1096-4959 |
op_doi |
https://doi.org/10.1016/S1096-4959(02)00264-6 |
container_title |
Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology |
container_volume |
134 |
container_issue |
2 |
container_start_page |
349 |
op_container_end_page |
366 |
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1798843506083495936 |