The effect of vaccination, ploidy and smolt production regime on pathological melanin depositions in muscle tissue of Atlantic salmon, Salmo salar L
Abstract The presence of melanin in muscle fillets of farmed salmon represents a considerable quality problem for the salmon industry with major economic concerns. In this study, we have examined the presence of abnormal pigmentation in vaccinated versus unvaccinated Atlantic salmon, S almo salar L...
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crwiley:10.1111/jfd.12106 2024-09-30T14:32:27+00:00 The effect of vaccination, ploidy and smolt production regime on pathological melanin depositions in muscle tissue of Atlantic salmon, Salmo salar L Larsen, H A S Austbø, L Nødtvedt, A Fraser, T W K Rimstad, E Fjelldal, P G Hansen, T Koppang, E O Research Council of Norway Fishery and Aquaculture Industry Research Fund Norwegian School of Veterinary Science ‘Torsteds legat til fordel for dyrene’ 2013 http://dx.doi.org/10.1111/jfd.12106 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfd.12106 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.12106 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Diseases volume 37, issue 4, page 327-340 ISSN 0140-7775 1365-2761 journal-article 2013 crwiley https://doi.org/10.1111/jfd.12106 2024-09-17T04:49:09Z Abstract The presence of melanin in muscle fillets of farmed salmon represents a considerable quality problem for the salmon industry with major economic concerns. In this study, we have examined the presence of abnormal pigmentation in vaccinated versus unvaccinated Atlantic salmon, S almo salar L ., and evaluated possible differences between diploid and triploid fish. Furthermore, the impact of the smolt production regime at ambient (4.5 °C) versus elevated temperature (16 °C) was investigated. Pigmented muscle spots were analysed for the expression of genes involved in melanization (tyrosinase gene family) and immune‐related response in addition to morphological investigations. The proportion of fish with intramuscular melanin deposits was not significantly different between vaccinated and unvaccinated fish, regardless of ploidy. However, an interaction between vaccination and smolt regime was shown, where smoltification at elevated temperature after vaccination increased the number of affected individuals compared with vaccination followed by simulated natural smoltification. Furthermore, there were overall more fish with melanin spots amongst the triploids compared with their diploid counterparts. Transcription of the tyrosinase gene family confirmed an onsite melanogenesis in all pigment spots. The histological examination and the expression of the immune‐related genes revealed a chronic polyphasic myopathy that was not affected by vaccination, ploidy or smolt production regime. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Almo ENVELOPE(15.306,15.306,66.954,66.954) Journal of Fish Diseases 37 4 327 340 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract The presence of melanin in muscle fillets of farmed salmon represents a considerable quality problem for the salmon industry with major economic concerns. In this study, we have examined the presence of abnormal pigmentation in vaccinated versus unvaccinated Atlantic salmon, S almo salar L ., and evaluated possible differences between diploid and triploid fish. Furthermore, the impact of the smolt production regime at ambient (4.5 °C) versus elevated temperature (16 °C) was investigated. Pigmented muscle spots were analysed for the expression of genes involved in melanization (tyrosinase gene family) and immune‐related response in addition to morphological investigations. The proportion of fish with intramuscular melanin deposits was not significantly different between vaccinated and unvaccinated fish, regardless of ploidy. However, an interaction between vaccination and smolt regime was shown, where smoltification at elevated temperature after vaccination increased the number of affected individuals compared with vaccination followed by simulated natural smoltification. Furthermore, there were overall more fish with melanin spots amongst the triploids compared with their diploid counterparts. Transcription of the tyrosinase gene family confirmed an onsite melanogenesis in all pigment spots. The histological examination and the expression of the immune‐related genes revealed a chronic polyphasic myopathy that was not affected by vaccination, ploidy or smolt production regime. |
author2 |
Research Council of Norway Fishery and Aquaculture Industry Research Fund Norwegian School of Veterinary Science ‘Torsteds legat til fordel for dyrene’ |
format |
Article in Journal/Newspaper |
author |
Larsen, H A S Austbø, L Nødtvedt, A Fraser, T W K Rimstad, E Fjelldal, P G Hansen, T Koppang, E O |
spellingShingle |
Larsen, H A S Austbø, L Nødtvedt, A Fraser, T W K Rimstad, E Fjelldal, P G Hansen, T Koppang, E O The effect of vaccination, ploidy and smolt production regime on pathological melanin depositions in muscle tissue of Atlantic salmon, Salmo salar L |
author_facet |
Larsen, H A S Austbø, L Nødtvedt, A Fraser, T W K Rimstad, E Fjelldal, P G Hansen, T Koppang, E O |
author_sort |
Larsen, H A S |
title |
The effect of vaccination, ploidy and smolt production regime on pathological melanin depositions in muscle tissue of Atlantic salmon, Salmo salar L |
title_short |
The effect of vaccination, ploidy and smolt production regime on pathological melanin depositions in muscle tissue of Atlantic salmon, Salmo salar L |
title_full |
The effect of vaccination, ploidy and smolt production regime on pathological melanin depositions in muscle tissue of Atlantic salmon, Salmo salar L |
title_fullStr |
The effect of vaccination, ploidy and smolt production regime on pathological melanin depositions in muscle tissue of Atlantic salmon, Salmo salar L |
title_full_unstemmed |
The effect of vaccination, ploidy and smolt production regime on pathological melanin depositions in muscle tissue of Atlantic salmon, Salmo salar L |
title_sort |
effect of vaccination, ploidy and smolt production regime on pathological melanin depositions in muscle tissue of atlantic salmon, salmo salar l |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.1111/jfd.12106 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfd.12106 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.12106 |
long_lat |
ENVELOPE(15.306,15.306,66.954,66.954) |
geographic |
Almo |
geographic_facet |
Almo |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Diseases volume 37, issue 4, page 327-340 ISSN 0140-7775 1365-2761 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jfd.12106 |
container_title |
Journal of Fish Diseases |
container_volume |
37 |
container_issue |
4 |
container_start_page |
327 |
op_container_end_page |
340 |
_version_ |
1811636607561760768 |