Effect of feeding Atlantic salmon ( Salmo salar L.) a diet enriched with stearidonic acid from parr to smolt on growth and n -3 long-chain PUFA biosynthesis
Vegetable oils (VO) have become the predominant substitute for fish oil (FO) in aquafeeds; however, the resultant lower content of n -3long-chain (≥C20) PUFA ( n -3 LC-PUFA) in fish has put their use under scrutiny. The need to investigate new oil sources exists. The presentstudy tested the hypothes...
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Online Access: | https://doi.org/10.1017/S0007114510005714 http://ecite.utas.edu.au/72062 |
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ftunivtasecite:oai:ecite.utas.edu.au:72062 2023-05-15T15:31:06+02:00 Effect of feeding Atlantic salmon ( Salmo salar L.) a diet enriched with stearidonic acid from parr to smolt on growth and n -3 long-chain PUFA biosynthesis Codabaccus, MB Bridle, AR Nichols, PD Carter, CG 2011 application/pdf https://doi.org/10.1017/S0007114510005714 http://ecite.utas.edu.au/72062 en eng C A B I Publishing http://ecite.utas.edu.au/72062/1/Codabaccus effectof feed Salmon et al 2011.pdf http://dx.doi.org/10.1017/S0007114510005714 Codabaccus, MB and Bridle, AR and Nichols, PD and Carter, CG, Effect of feeding Atlantic salmon ( Salmo salar L.) a diet enriched with stearidonic acid from parr to smolt on growth and n -3 long-chain PUFA biosynthesis, The British Journal of Nutrition: An International Journal of Nutritional Science, 105, (12) pp. 1772-1782. ISSN 0007-1145 (2011) [Refereed Article] http://ecite.utas.edu.au/72062 Agricultural and Veterinary Sciences Fisheries Sciences Aquaculture Refereed Article PeerReviewed 2011 ftunivtasecite https://doi.org/10.1017/S0007114510005714 2019-12-13T21:39:23Z Vegetable oils (VO) have become the predominant substitute for fish oil (FO) in aquafeeds; however, the resultant lower content of n -3long-chain (≥C20) PUFA ( n -3 LC-PUFA) in fish has put their use under scrutiny. The need to investigate new oil sources exists. The presentstudy tested the hypothesis that in Atlantic salmon (Salmo salar L.), a high intake of stearidonic acid (SDA) from Echium oil (EO) wouldresult in increased n -3 LC-PUFA biosynthesis due to a lower requirement for Δ6 desaturase. Comparisons were made with fish fed on dietscontaining rapeseed oil (RO) and FO in freshwater for 112 d followed by 96 d in seawater. EO fish had higher whole-carcass SDA andeicosatetraenoic acid (ETA) in freshwater and prolonged feeding on the EO diet in seawater resulted in higher SDA, ETA, EPA anddocosapentaenoic acid (DPA) compared with RO fish. Fatty acid mass balance of freshwater fish indicated higher biosynthesis of ETAand EPA in EO fish compared with fish fed on the other diets and a twofold increase in n -3 LC-PUFA synthesis compared with ROfish. In seawater, n -3 biosynthetic activity was low, with higher biosynthesis of ETA in EO fish and appearance of all desaturated andelongated products along the n -3 pathway. SDA-enriched VO are more suitable substitutes than conventional VO from a human consumerperspective due to the resulting higher SDA content, higher total n -3 and improved n -3: n -6 ratio obtained in fish, although both VO werenot as effective as FO in maintaining EPA and DHA content in Atlantic salmon. Article in Journal/Newspaper Atlantic salmon Salmo salar eCite UTAS (University of Tasmania) Eta ENVELOPE(-62.917,-62.917,-64.300,-64.300) British Journal of Nutrition 105 12 1772 1782 |
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Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Agricultural and Veterinary Sciences Fisheries Sciences Aquaculture |
spellingShingle |
Agricultural and Veterinary Sciences Fisheries Sciences Aquaculture Codabaccus, MB Bridle, AR Nichols, PD Carter, CG Effect of feeding Atlantic salmon ( Salmo salar L.) a diet enriched with stearidonic acid from parr to smolt on growth and n -3 long-chain PUFA biosynthesis |
topic_facet |
Agricultural and Veterinary Sciences Fisheries Sciences Aquaculture |
description |
Vegetable oils (VO) have become the predominant substitute for fish oil (FO) in aquafeeds; however, the resultant lower content of n -3long-chain (≥C20) PUFA ( n -3 LC-PUFA) in fish has put their use under scrutiny. The need to investigate new oil sources exists. The presentstudy tested the hypothesis that in Atlantic salmon (Salmo salar L.), a high intake of stearidonic acid (SDA) from Echium oil (EO) wouldresult in increased n -3 LC-PUFA biosynthesis due to a lower requirement for Δ6 desaturase. Comparisons were made with fish fed on dietscontaining rapeseed oil (RO) and FO in freshwater for 112 d followed by 96 d in seawater. EO fish had higher whole-carcass SDA andeicosatetraenoic acid (ETA) in freshwater and prolonged feeding on the EO diet in seawater resulted in higher SDA, ETA, EPA anddocosapentaenoic acid (DPA) compared with RO fish. Fatty acid mass balance of freshwater fish indicated higher biosynthesis of ETAand EPA in EO fish compared with fish fed on the other diets and a twofold increase in n -3 LC-PUFA synthesis compared with ROfish. In seawater, n -3 biosynthetic activity was low, with higher biosynthesis of ETA in EO fish and appearance of all desaturated andelongated products along the n -3 pathway. SDA-enriched VO are more suitable substitutes than conventional VO from a human consumerperspective due to the resulting higher SDA content, higher total n -3 and improved n -3: n -6 ratio obtained in fish, although both VO werenot as effective as FO in maintaining EPA and DHA content in Atlantic salmon. |
format |
Article in Journal/Newspaper |
author |
Codabaccus, MB Bridle, AR Nichols, PD Carter, CG |
author_facet |
Codabaccus, MB Bridle, AR Nichols, PD Carter, CG |
author_sort |
Codabaccus, MB |
title |
Effect of feeding Atlantic salmon ( Salmo salar L.) a diet enriched with stearidonic acid from parr to smolt on growth and n -3 long-chain PUFA biosynthesis |
title_short |
Effect of feeding Atlantic salmon ( Salmo salar L.) a diet enriched with stearidonic acid from parr to smolt on growth and n -3 long-chain PUFA biosynthesis |
title_full |
Effect of feeding Atlantic salmon ( Salmo salar L.) a diet enriched with stearidonic acid from parr to smolt on growth and n -3 long-chain PUFA biosynthesis |
title_fullStr |
Effect of feeding Atlantic salmon ( Salmo salar L.) a diet enriched with stearidonic acid from parr to smolt on growth and n -3 long-chain PUFA biosynthesis |
title_full_unstemmed |
Effect of feeding Atlantic salmon ( Salmo salar L.) a diet enriched with stearidonic acid from parr to smolt on growth and n -3 long-chain PUFA biosynthesis |
title_sort |
effect of feeding atlantic salmon ( salmo salar l.) a diet enriched with stearidonic acid from parr to smolt on growth and n -3 long-chain pufa biosynthesis |
publisher |
C A B I Publishing |
publishDate |
2011 |
url |
https://doi.org/10.1017/S0007114510005714 http://ecite.utas.edu.au/72062 |
long_lat |
ENVELOPE(-62.917,-62.917,-64.300,-64.300) |
geographic |
Eta |
geographic_facet |
Eta |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
http://ecite.utas.edu.au/72062/1/Codabaccus effectof feed Salmon et al 2011.pdf http://dx.doi.org/10.1017/S0007114510005714 Codabaccus, MB and Bridle, AR and Nichols, PD and Carter, CG, Effect of feeding Atlantic salmon ( Salmo salar L.) a diet enriched with stearidonic acid from parr to smolt on growth and n -3 long-chain PUFA biosynthesis, The British Journal of Nutrition: An International Journal of Nutritional Science, 105, (12) pp. 1772-1782. ISSN 0007-1145 (2011) [Refereed Article] http://ecite.utas.edu.au/72062 |
op_doi |
https://doi.org/10.1017/S0007114510005714 |
container_title |
British Journal of Nutrition |
container_volume |
105 |
container_issue |
12 |
container_start_page |
1772 |
op_container_end_page |
1782 |
_version_ |
1766361598567383040 |