Antioxidant nutrition in Atlantic salmon ( Salmo salar) parr and post-smolt, fed diets with high inclusion of plant ingredients and graded levels of micronutrients and selected amino acids
The shift from marine to plant-based ingredients in fish feeds affects the dietary concentrations and bioavailability of micronutrients, amino acids and lipids and consequently warrants a re-evaluation of dietary nutrient recommendations. In the present study, an Atlantic salmon diet high in plant i...
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crpeerj:10.7717/peerj.2688 2024-06-23T07:51:22+00:00 Antioxidant nutrition in Atlantic salmon ( Salmo salar) parr and post-smolt, fed diets with high inclusion of plant ingredients and graded levels of micronutrients and selected amino acids Hamre, Kristin Sissener, Nini H. Lock, Erik-Jan Olsvik, Pål A. Espe, Marit Torstensen, Bente E. Silva, Joana Johansen, Johan Waagbø, Rune Hemre, Gro-Ingunn Advanced Research Initiatives for Nutrition & Aquaculture” (ARRAINA) EU, FP7 under the subprogramme “Food, Agriculture and Fisheries, Biotechnology” NIFES 2016 http://dx.doi.org/10.7717/peerj.2688 https://peerj.com/articles/2688.pdf https://peerj.com/articles/2688.xml https://peerj.com/articles/2688.html en eng PeerJ http://creativecommons.org/licenses/by/4.0/ PeerJ volume 4, page e2688 ISSN 2167-8359 journal-article 2016 crpeerj https://doi.org/10.7717/peerj.2688 2024-06-04T06:21:57Z The shift from marine to plant-based ingredients in fish feeds affects the dietary concentrations and bioavailability of micronutrients, amino acids and lipids and consequently warrants a re-evaluation of dietary nutrient recommendations. In the present study, an Atlantic salmon diet high in plant ingredients was supplemented with graded levels of nutrient premix (NP), containing selected amino acids, taurine, cholesterol, vitamins and minerals. This article presents the results on the antioxidant nutrients vitamin C, E and selenium (Se), and effects on tissue redox status. The feed ingredients appeared to contain sufficient levels of vitamin E and Se to cover the requirements to prevent clinical deficiency symptoms. The body levels of α-tocopherol (TOH) in parr and that of Se in parr and post-smolt showed a linear relationship with dietary concentration, while α-TOH in post-smolt seemed to be saturable with a breakpoint near 140 mg kg −1 . Ascorbic acid (Asc) concentration in the basal feed was below the expected minimum requirement, but the experimental period was probably too short for the fish to develop visible deficiency symptoms. Asc was saturable in both parr and post-smolt whole body at dietary concentrations of 190 and 63–89 mg kg −1 , respectively. Maximum whole body Asc concentration was approximately 40 mg kg −1 in parr and 14 mg kg −1 in post-smolt. Retention ranged from 41 to 10% in parr and from −206 to 12% in post-smolt with increasing NP supplementation. This indicates that the post-smolts had an extraordinarily high consumption of Asc. Analyses of glutathione (GSH) and glutathione disulphide (GSSG) concentrations and the calculated GSH based redox potentials in liver and muscle tissue, indicated only minor effects of diets on redox regulation. However, the post-smolt were more oxidized than the parr. This was supported by the high consumption of Asc and high expression of gpx1 and gpx3 in liver. Based on the present trials, the recommendations for supplementation of vitamin C and E in diets ... Article in Journal/Newspaper Atlantic salmon Salmo salar PeerJ Publishing PeerJ 4 e2688 |
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Open Polar |
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PeerJ Publishing |
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crpeerj |
language |
English |
description |
The shift from marine to plant-based ingredients in fish feeds affects the dietary concentrations and bioavailability of micronutrients, amino acids and lipids and consequently warrants a re-evaluation of dietary nutrient recommendations. In the present study, an Atlantic salmon diet high in plant ingredients was supplemented with graded levels of nutrient premix (NP), containing selected amino acids, taurine, cholesterol, vitamins and minerals. This article presents the results on the antioxidant nutrients vitamin C, E and selenium (Se), and effects on tissue redox status. The feed ingredients appeared to contain sufficient levels of vitamin E and Se to cover the requirements to prevent clinical deficiency symptoms. The body levels of α-tocopherol (TOH) in parr and that of Se in parr and post-smolt showed a linear relationship with dietary concentration, while α-TOH in post-smolt seemed to be saturable with a breakpoint near 140 mg kg −1 . Ascorbic acid (Asc) concentration in the basal feed was below the expected minimum requirement, but the experimental period was probably too short for the fish to develop visible deficiency symptoms. Asc was saturable in both parr and post-smolt whole body at dietary concentrations of 190 and 63–89 mg kg −1 , respectively. Maximum whole body Asc concentration was approximately 40 mg kg −1 in parr and 14 mg kg −1 in post-smolt. Retention ranged from 41 to 10% in parr and from −206 to 12% in post-smolt with increasing NP supplementation. This indicates that the post-smolts had an extraordinarily high consumption of Asc. Analyses of glutathione (GSH) and glutathione disulphide (GSSG) concentrations and the calculated GSH based redox potentials in liver and muscle tissue, indicated only minor effects of diets on redox regulation. However, the post-smolt were more oxidized than the parr. This was supported by the high consumption of Asc and high expression of gpx1 and gpx3 in liver. Based on the present trials, the recommendations for supplementation of vitamin C and E in diets ... |
author2 |
Advanced Research Initiatives for Nutrition & Aquaculture” (ARRAINA) EU, FP7 under the subprogramme “Food, Agriculture and Fisheries, Biotechnology” NIFES |
format |
Article in Journal/Newspaper |
author |
Hamre, Kristin Sissener, Nini H. Lock, Erik-Jan Olsvik, Pål A. Espe, Marit Torstensen, Bente E. Silva, Joana Johansen, Johan Waagbø, Rune Hemre, Gro-Ingunn |
spellingShingle |
Hamre, Kristin Sissener, Nini H. Lock, Erik-Jan Olsvik, Pål A. Espe, Marit Torstensen, Bente E. Silva, Joana Johansen, Johan Waagbø, Rune Hemre, Gro-Ingunn Antioxidant nutrition in Atlantic salmon ( Salmo salar) parr and post-smolt, fed diets with high inclusion of plant ingredients and graded levels of micronutrients and selected amino acids |
author_facet |
Hamre, Kristin Sissener, Nini H. Lock, Erik-Jan Olsvik, Pål A. Espe, Marit Torstensen, Bente E. Silva, Joana Johansen, Johan Waagbø, Rune Hemre, Gro-Ingunn |
author_sort |
Hamre, Kristin |
title |
Antioxidant nutrition in Atlantic salmon ( Salmo salar) parr and post-smolt, fed diets with high inclusion of plant ingredients and graded levels of micronutrients and selected amino acids |
title_short |
Antioxidant nutrition in Atlantic salmon ( Salmo salar) parr and post-smolt, fed diets with high inclusion of plant ingredients and graded levels of micronutrients and selected amino acids |
title_full |
Antioxidant nutrition in Atlantic salmon ( Salmo salar) parr and post-smolt, fed diets with high inclusion of plant ingredients and graded levels of micronutrients and selected amino acids |
title_fullStr |
Antioxidant nutrition in Atlantic salmon ( Salmo salar) parr and post-smolt, fed diets with high inclusion of plant ingredients and graded levels of micronutrients and selected amino acids |
title_full_unstemmed |
Antioxidant nutrition in Atlantic salmon ( Salmo salar) parr and post-smolt, fed diets with high inclusion of plant ingredients and graded levels of micronutrients and selected amino acids |
title_sort |
antioxidant nutrition in atlantic salmon ( salmo salar) parr and post-smolt, fed diets with high inclusion of plant ingredients and graded levels of micronutrients and selected amino acids |
publisher |
PeerJ |
publishDate |
2016 |
url |
http://dx.doi.org/10.7717/peerj.2688 https://peerj.com/articles/2688.pdf https://peerj.com/articles/2688.xml https://peerj.com/articles/2688.html |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
PeerJ volume 4, page e2688 ISSN 2167-8359 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.7717/peerj.2688 |
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PeerJ |
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4 |
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e2688 |
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1802642447024521216 |