Comparisons of reproductive function and fatty acid fillet quality between triploid and diploid farm Atlantic salmon (Salmo salar)
Triploidy could prevent escaped farm salmon breeding in the wild, while also improving nutrient quality within farmed fillets. Despite these potential advantages, triploid Atlantic salmon have not been widely used in aquaculture, and their reproductive function has yet to be fully evaluated. Here, w...
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ftninstnf:oai:brage.nina.no:11250/2572178 2023-05-15T15:30:51+02:00 Comparisons of reproductive function and fatty acid fillet quality between triploid and diploid farm Atlantic salmon (Salmo salar) Murray, D.S. Kainz, M.J. Hebberecht, L. Sales, K.R. Hindar, Kjetil Gage, Matthew J.G. 2018 application/pdf http://hdl.handle.net/11250/2572178 https://doi.org/10.1098/rsos.180493 eng eng Andre: Fisheries Society of the British Isles Andre: Biotechnology and Biological Sciences Research Council Andre: Natural Environmental Research Council urn:issn:2054-5703 http://hdl.handle.net/11250/2572178 https://doi.org/10.1098/rsos.180493 cristin:1612596 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no ©2018 The Authors CC-BY 5 Royal Society Open Science developmental biology biotechnology aquaculture nutrition polyploidy sustainability sterility sperm VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 VDP::Matematikk og Naturvitenskap: 400 Journal article Peer reviewed 2018 ftninstnf https://doi.org/10.1098/rsos.180493 2021-12-23T07:16:53Z Triploidy could prevent escaped farm salmon breeding in the wild, while also improving nutrient quality within farmed fillets. Despite these potential advantages, triploid Atlantic salmon have not been widely used in aquaculture, and their reproductive function has yet to be fully evaluated. Here, we compare reproductive function and fillet composition between triploid and diploid farm salmon under standard aquaculture rearing conditions. We show that female triploids are sterile and do not develop gonads. By contrast, males produce large numbers of motile spermatozoa capable of fertilizing wild salmon eggs. However, compared with diploids, reproductive development and survival rates of eggs fertilized by triploid males were significantly reduced, with less than 1% of eggs sired by triploid males reaching late-eyed stages of development. Analyses of fillets showed that total lipid and fatty acid quantities were significantly lower in triploid than in diploid Atlantic salmon fillets. However, when fatty acids were normalized to total lipid content, triploid fillets had significantly higher relative levels of important omega-3 longchain polyunsaturated fatty acids. Our results show that: (i) escaped triploid farm salmon are very unlikely to reproduce in the wild and (ii) if able to match diploid fillet lipid content, triploid farm salmon could achieve better fillet quality in terms of essential fatty acids. aquaculture, nutrition, polyploidy, sustainability, sterility, sperm publishedVersion Article in Journal/Newspaper Atlantic salmon Salmo salar Norwegian Institute for Nature Research: Brage NINA Royal Society Open Science 5 8 180493 |
institution |
Open Polar |
collection |
Norwegian Institute for Nature Research: Brage NINA |
op_collection_id |
ftninstnf |
language |
English |
topic |
developmental biology biotechnology aquaculture nutrition polyploidy sustainability sterility sperm VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 VDP::Matematikk og Naturvitenskap: 400 |
spellingShingle |
developmental biology biotechnology aquaculture nutrition polyploidy sustainability sterility sperm VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 VDP::Matematikk og Naturvitenskap: 400 Murray, D.S. Kainz, M.J. Hebberecht, L. Sales, K.R. Hindar, Kjetil Gage, Matthew J.G. Comparisons of reproductive function and fatty acid fillet quality between triploid and diploid farm Atlantic salmon (Salmo salar) |
topic_facet |
developmental biology biotechnology aquaculture nutrition polyploidy sustainability sterility sperm VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 VDP::Matematikk og Naturvitenskap: 400 |
description |
Triploidy could prevent escaped farm salmon breeding in the wild, while also improving nutrient quality within farmed fillets. Despite these potential advantages, triploid Atlantic salmon have not been widely used in aquaculture, and their reproductive function has yet to be fully evaluated. Here, we compare reproductive function and fillet composition between triploid and diploid farm salmon under standard aquaculture rearing conditions. We show that female triploids are sterile and do not develop gonads. By contrast, males produce large numbers of motile spermatozoa capable of fertilizing wild salmon eggs. However, compared with diploids, reproductive development and survival rates of eggs fertilized by triploid males were significantly reduced, with less than 1% of eggs sired by triploid males reaching late-eyed stages of development. Analyses of fillets showed that total lipid and fatty acid quantities were significantly lower in triploid than in diploid Atlantic salmon fillets. However, when fatty acids were normalized to total lipid content, triploid fillets had significantly higher relative levels of important omega-3 longchain polyunsaturated fatty acids. Our results show that: (i) escaped triploid farm salmon are very unlikely to reproduce in the wild and (ii) if able to match diploid fillet lipid content, triploid farm salmon could achieve better fillet quality in terms of essential fatty acids. aquaculture, nutrition, polyploidy, sustainability, sterility, sperm publishedVersion |
format |
Article in Journal/Newspaper |
author |
Murray, D.S. Kainz, M.J. Hebberecht, L. Sales, K.R. Hindar, Kjetil Gage, Matthew J.G. |
author_facet |
Murray, D.S. Kainz, M.J. Hebberecht, L. Sales, K.R. Hindar, Kjetil Gage, Matthew J.G. |
author_sort |
Murray, D.S. |
title |
Comparisons of reproductive function and fatty acid fillet quality between triploid and diploid farm Atlantic salmon (Salmo salar) |
title_short |
Comparisons of reproductive function and fatty acid fillet quality between triploid and diploid farm Atlantic salmon (Salmo salar) |
title_full |
Comparisons of reproductive function and fatty acid fillet quality between triploid and diploid farm Atlantic salmon (Salmo salar) |
title_fullStr |
Comparisons of reproductive function and fatty acid fillet quality between triploid and diploid farm Atlantic salmon (Salmo salar) |
title_full_unstemmed |
Comparisons of reproductive function and fatty acid fillet quality between triploid and diploid farm Atlantic salmon (Salmo salar) |
title_sort |
comparisons of reproductive function and fatty acid fillet quality between triploid and diploid farm atlantic salmon (salmo salar) |
publishDate |
2018 |
url |
http://hdl.handle.net/11250/2572178 https://doi.org/10.1098/rsos.180493 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
5 Royal Society Open Science |
op_relation |
Andre: Fisheries Society of the British Isles Andre: Biotechnology and Biological Sciences Research Council Andre: Natural Environmental Research Council urn:issn:2054-5703 http://hdl.handle.net/11250/2572178 https://doi.org/10.1098/rsos.180493 cristin:1612596 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no ©2018 The Authors |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rsos.180493 |
container_title |
Royal Society Open Science |
container_volume |
5 |
container_issue |
8 |
container_start_page |
180493 |
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1766361314027896832 |