The effect of dispensable amino acids on nitrogen and amino acid losses in Atlantic salmon (Salmo salar) fry fed a protein-free diet
The nutritional role of dispensable amino acids (DAAs) has been seldom studied in fish, while the metabolism of these species is orientated toward the oxidation of amino acids (AAs) for energetic purpose. The objective of this study was to characterize the role of DAAs in the absence of indispensabl...
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Online Access: | http://hdl.handle.net/2078.1/35695 https://doi.org/10.1016/j.aquaculture.2009.01.031 |
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ftunistlouisbrus:oai:dial.uclouvain.be:boreal:35695 2024-05-12T08:01:11+00:00 The effect of dispensable amino acids on nitrogen and amino acid losses in Atlantic salmon (Salmo salar) fry fed a protein-free diet Abboudi, Tarik Mambrini, Muriel Larondelle, Yvan Rollin, Xavier UCL - AGRO/BAPA - Département de biologie appliquée et des productions agricoles UCL - AGRO/MILA - Département des sciences du milieu et de l'aménagement du territoire 2009 http://hdl.handle.net/2078.1/35695 https://doi.org/10.1016/j.aquaculture.2009.01.031 eng eng Elsevier Science Bv boreal:35695 http://hdl.handle.net/2078.1/35695 doi:10.1016/j.aquaculture.2009.01.031 urn:ISSN:0044-8486 urn:EISSN:1873-5622 info:eu-repo/semantics/restrictedAccess Aquaculture, Vol. 289, no. 3-4, p. 327-333 (2009) Dispensable amino acids Endogenous amino acid losses Atlantic salmon fry info:eu-repo/semantics/article 2009 ftunistlouisbrus https://doi.org/10.1016/j.aquaculture.2009.01.031 2024-04-18T18:16:12Z The nutritional role of dispensable amino acids (DAAs) has been seldom studied in fish, while the metabolism of these species is orientated toward the oxidation of amino acids (AAs) for energetic purpose. The objective of this study was to characterize the role of DAAs in the absence of indispensable (1) AA supply in Atlantic salmon and to verify if, as in mammals they play a nutritional role under near maintenance conditions. Therefore we measured the effect of adding DAAs on nitrogen and AA losses in Atlantic salmon fry fed a protein-free (PF) diet. Fry were either starved or fed a PF diet or a DAA-supplemented (DAA-PF) diet for 30 days. The maintenance protein requirement estimated from the endogenous losses were 1.11, 1.58 and 0.65 g/kg BW/day for starved fish, fish fed PF or DAA-PF diets, respectively. The daily IAA and DAA losses of fish fed the DAA-PF diet were greatly reduced (-55 and -63%, respectively) compared to fish fed the PF diet (P<0.05), except for proline and serine for which the reduction was not significant. Among the DAAs, alanine and glycine losses were particularly reduced when fish were fed the DAA-PF diet compared to the PF-diet (-74 and -82% for alanine and glycine, respectively). Among the IAAs, methionine loss was the most reduced by the supplementation of the PF-diet with DAAs (-72%). These results showed the indispensable role of DAAs under near maintenance conditions and their sparing effect on the use of alanine and glycine specifically. (C) 2009 Elsevier B.V. All rights reserved. Article in Journal/Newspaper Atlantic salmon Salmo salar DIAL@USL-B (Université Saint-Louis, Bruxelles) Aquaculture 289 3-4 327 333 |
institution |
Open Polar |
collection |
DIAL@USL-B (Université Saint-Louis, Bruxelles) |
op_collection_id |
ftunistlouisbrus |
language |
English |
topic |
Dispensable amino acids Endogenous amino acid losses Atlantic salmon fry |
spellingShingle |
Dispensable amino acids Endogenous amino acid losses Atlantic salmon fry Abboudi, Tarik Mambrini, Muriel Larondelle, Yvan Rollin, Xavier The effect of dispensable amino acids on nitrogen and amino acid losses in Atlantic salmon (Salmo salar) fry fed a protein-free diet |
topic_facet |
Dispensable amino acids Endogenous amino acid losses Atlantic salmon fry |
description |
The nutritional role of dispensable amino acids (DAAs) has been seldom studied in fish, while the metabolism of these species is orientated toward the oxidation of amino acids (AAs) for energetic purpose. The objective of this study was to characterize the role of DAAs in the absence of indispensable (1) AA supply in Atlantic salmon and to verify if, as in mammals they play a nutritional role under near maintenance conditions. Therefore we measured the effect of adding DAAs on nitrogen and AA losses in Atlantic salmon fry fed a protein-free (PF) diet. Fry were either starved or fed a PF diet or a DAA-supplemented (DAA-PF) diet for 30 days. The maintenance protein requirement estimated from the endogenous losses were 1.11, 1.58 and 0.65 g/kg BW/day for starved fish, fish fed PF or DAA-PF diets, respectively. The daily IAA and DAA losses of fish fed the DAA-PF diet were greatly reduced (-55 and -63%, respectively) compared to fish fed the PF diet (P<0.05), except for proline and serine for which the reduction was not significant. Among the DAAs, alanine and glycine losses were particularly reduced when fish were fed the DAA-PF diet compared to the PF-diet (-74 and -82% for alanine and glycine, respectively). Among the IAAs, methionine loss was the most reduced by the supplementation of the PF-diet with DAAs (-72%). These results showed the indispensable role of DAAs under near maintenance conditions and their sparing effect on the use of alanine and glycine specifically. (C) 2009 Elsevier B.V. All rights reserved. |
author2 |
UCL - AGRO/BAPA - Département de biologie appliquée et des productions agricoles UCL - AGRO/MILA - Département des sciences du milieu et de l'aménagement du territoire |
format |
Article in Journal/Newspaper |
author |
Abboudi, Tarik Mambrini, Muriel Larondelle, Yvan Rollin, Xavier |
author_facet |
Abboudi, Tarik Mambrini, Muriel Larondelle, Yvan Rollin, Xavier |
author_sort |
Abboudi, Tarik |
title |
The effect of dispensable amino acids on nitrogen and amino acid losses in Atlantic salmon (Salmo salar) fry fed a protein-free diet |
title_short |
The effect of dispensable amino acids on nitrogen and amino acid losses in Atlantic salmon (Salmo salar) fry fed a protein-free diet |
title_full |
The effect of dispensable amino acids on nitrogen and amino acid losses in Atlantic salmon (Salmo salar) fry fed a protein-free diet |
title_fullStr |
The effect of dispensable amino acids on nitrogen and amino acid losses in Atlantic salmon (Salmo salar) fry fed a protein-free diet |
title_full_unstemmed |
The effect of dispensable amino acids on nitrogen and amino acid losses in Atlantic salmon (Salmo salar) fry fed a protein-free diet |
title_sort |
effect of dispensable amino acids on nitrogen and amino acid losses in atlantic salmon (salmo salar) fry fed a protein-free diet |
publisher |
Elsevier Science Bv |
publishDate |
2009 |
url |
http://hdl.handle.net/2078.1/35695 https://doi.org/10.1016/j.aquaculture.2009.01.031 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Aquaculture, Vol. 289, no. 3-4, p. 327-333 (2009) |
op_relation |
boreal:35695 http://hdl.handle.net/2078.1/35695 doi:10.1016/j.aquaculture.2009.01.031 urn:ISSN:0044-8486 urn:EISSN:1873-5622 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.aquaculture.2009.01.031 |
container_title |
Aquaculture |
container_volume |
289 |
container_issue |
3-4 |
container_start_page |
327 |
op_container_end_page |
333 |
_version_ |
1798843297199816704 |