Modulation of selenium tissue distribution and selenoprotein expression in Atlantic salmon ( Salmo salar L.) fed diets with graded levels of plant ingredients
Abstract Increased substitution of marine ingredients by terrestrial plant products in aquafeeds has been proven to be suitable for Atlantic salmon farming. However, a reduction in n -3 long-chain PUFA is a consequence of this substitution. In contrast, relatively little attention has been paid to t...
Published in: | British Journal of Nutrition |
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Language: | English |
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Cambridge University Press (CUP)
2016
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Online Access: | http://dx.doi.org/10.1017/s0007114516000416 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0007114516000416 |
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crcambridgeupr:10.1017/s0007114516000416 2024-09-15T17:56:16+00:00 Modulation of selenium tissue distribution and selenoprotein expression in Atlantic salmon ( Salmo salar L.) fed diets with graded levels of plant ingredients Betancor, Monica B. Dam, Thi M. C. Walton, James Morken, Thea Campbell, Patrick J. Tocher, Douglas R. 2016 http://dx.doi.org/10.1017/s0007114516000416 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0007114516000416 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms British Journal of Nutrition volume 115, issue 8, page 1325-1338 ISSN 0007-1145 1475-2662 journal-article 2016 crcambridgeupr https://doi.org/10.1017/s0007114516000416 2024-07-31T04:04:06Z Abstract Increased substitution of marine ingredients by terrestrial plant products in aquafeeds has been proven to be suitable for Atlantic salmon farming. However, a reduction in n -3 long-chain PUFA is a consequence of this substitution. In contrast, relatively little attention has been paid to the effects of fishmeal and oil substitution on levels of micronutrients such as Se, considering fish are major sources of this mineral for human consumers. To evaluate the effects of dietary marine ingredient substitution on tissue Se distribution and the expression of Se metabolism and antioxidant enzyme genes, Atlantic salmons were fed three feeds based on commercial formulations with increasing levels of plant proteins (PP) and vegetable oil. Lipid content in flesh did not vary at any sampling point, but it was higher in the liver of 1 kg of fish fed higher PP. Fatty acid content reflected dietary input and was related to oxidation levels (thiobarbituric acid-reactive substances). Liver had the highest Se levels, followed by head kidney, whereas the lowest contents were found in brain and gill. The Se concentration of flesh decreased considerably with high levels of substitution, reducing the added value of fish consumption. Only the brain showed significant differences in glutathione peroxidase, transfer RNA selenocysteine 1-associated protein 1b and superoxide dismutase expression, whereas no significant regulation of Se-related genes was found in liver. Although Se levels in the diets satisfied the essential requirements of salmon, high PP levels led to a reduction in the supply of this essential micronutrient. Article in Journal/Newspaper Atlantic salmon Salmo salar Cambridge University Press British Journal of Nutrition 115 8 1325 1338 |
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Cambridge University Press |
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English |
description |
Abstract Increased substitution of marine ingredients by terrestrial plant products in aquafeeds has been proven to be suitable for Atlantic salmon farming. However, a reduction in n -3 long-chain PUFA is a consequence of this substitution. In contrast, relatively little attention has been paid to the effects of fishmeal and oil substitution on levels of micronutrients such as Se, considering fish are major sources of this mineral for human consumers. To evaluate the effects of dietary marine ingredient substitution on tissue Se distribution and the expression of Se metabolism and antioxidant enzyme genes, Atlantic salmons were fed three feeds based on commercial formulations with increasing levels of plant proteins (PP) and vegetable oil. Lipid content in flesh did not vary at any sampling point, but it was higher in the liver of 1 kg of fish fed higher PP. Fatty acid content reflected dietary input and was related to oxidation levels (thiobarbituric acid-reactive substances). Liver had the highest Se levels, followed by head kidney, whereas the lowest contents were found in brain and gill. The Se concentration of flesh decreased considerably with high levels of substitution, reducing the added value of fish consumption. Only the brain showed significant differences in glutathione peroxidase, transfer RNA selenocysteine 1-associated protein 1b and superoxide dismutase expression, whereas no significant regulation of Se-related genes was found in liver. Although Se levels in the diets satisfied the essential requirements of salmon, high PP levels led to a reduction in the supply of this essential micronutrient. |
format |
Article in Journal/Newspaper |
author |
Betancor, Monica B. Dam, Thi M. C. Walton, James Morken, Thea Campbell, Patrick J. Tocher, Douglas R. |
spellingShingle |
Betancor, Monica B. Dam, Thi M. C. Walton, James Morken, Thea Campbell, Patrick J. Tocher, Douglas R. Modulation of selenium tissue distribution and selenoprotein expression in Atlantic salmon ( Salmo salar L.) fed diets with graded levels of plant ingredients |
author_facet |
Betancor, Monica B. Dam, Thi M. C. Walton, James Morken, Thea Campbell, Patrick J. Tocher, Douglas R. |
author_sort |
Betancor, Monica B. |
title |
Modulation of selenium tissue distribution and selenoprotein expression in Atlantic salmon ( Salmo salar L.) fed diets with graded levels of plant ingredients |
title_short |
Modulation of selenium tissue distribution and selenoprotein expression in Atlantic salmon ( Salmo salar L.) fed diets with graded levels of plant ingredients |
title_full |
Modulation of selenium tissue distribution and selenoprotein expression in Atlantic salmon ( Salmo salar L.) fed diets with graded levels of plant ingredients |
title_fullStr |
Modulation of selenium tissue distribution and selenoprotein expression in Atlantic salmon ( Salmo salar L.) fed diets with graded levels of plant ingredients |
title_full_unstemmed |
Modulation of selenium tissue distribution and selenoprotein expression in Atlantic salmon ( Salmo salar L.) fed diets with graded levels of plant ingredients |
title_sort |
modulation of selenium tissue distribution and selenoprotein expression in atlantic salmon ( salmo salar l.) fed diets with graded levels of plant ingredients |
publisher |
Cambridge University Press (CUP) |
publishDate |
2016 |
url |
http://dx.doi.org/10.1017/s0007114516000416 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0007114516000416 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
British Journal of Nutrition volume 115, issue 8, page 1325-1338 ISSN 0007-1145 1475-2662 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0007114516000416 |
container_title |
British Journal of Nutrition |
container_volume |
115 |
container_issue |
8 |
container_start_page |
1325 |
op_container_end_page |
1338 |
_version_ |
1810432483600105472 |