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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ftdoajarticles:oai:doaj.org/article:c7954817d77e4a7194a3028a898d17c8 2023-05-15T15:30:46+02:00 Comparisons of reproductive function and fatty acid fillet quality between triploid and diploid farm Atlantic salmon (Salmo salar) D. S. Murray M. J. Kainz L. Hebberecht K. R. Sales K. Hindar M. J. G. Gage 2018-01-01T00:00:00Z https://doi.org/10.1098/rsos.180493 https://doaj.org/article/c7954817d77e4a7194a3028a898d17c8 EN eng The Royal Society https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.180493 https://doaj.org/toc/2054-5703 2054-5703 doi:10.1098/rsos.180493 https://doaj.org/article/c7954817d77e4a7194a3028a898d17c8 Royal Society Open Science, Vol 5, Iss 8 (2018) aquaculture nutrition polyploidy sustainability sterility sperm Science Q article 2018 ftdoajarticles https://doi.org/10.1098/rsos.180493 2022-12-31T04:18:08Z 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 long-chain 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. Article in Journal/Newspaper Atlantic salmon Salmo salar Directory of Open Access Journals: DOAJ Articles Royal Society Open Science 5 8 180493 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
aquaculture nutrition polyploidy sustainability sterility sperm Science Q |
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aquaculture nutrition polyploidy sustainability sterility sperm Science Q D. S. Murray M. J. Kainz L. Hebberecht K. R. Sales K. Hindar M. J. G. Gage Comparisons of reproductive function and fatty acid fillet quality between triploid and diploid farm Atlantic salmon (Salmo salar) |
topic_facet |
aquaculture nutrition polyploidy sustainability sterility sperm Science Q |
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 long-chain 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. |
format |
Article in Journal/Newspaper |
author |
D. S. Murray M. J. Kainz L. Hebberecht K. R. Sales K. Hindar M. J. G. Gage |
author_facet |
D. S. Murray M. J. Kainz L. Hebberecht K. R. Sales K. Hindar M. J. G. Gage |
author_sort |
D. S. Murray |
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) |
publisher |
The Royal Society |
publishDate |
2018 |
url |
https://doi.org/10.1098/rsos.180493 https://doaj.org/article/c7954817d77e4a7194a3028a898d17c8 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Royal Society Open Science, Vol 5, Iss 8 (2018) |
op_relation |
https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.180493 https://doaj.org/toc/2054-5703 2054-5703 doi:10.1098/rsos.180493 https://doaj.org/article/c7954817d77e4a7194a3028a898d17c8 |
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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1766361227010768896 |