No environmental effect on vaccine-induced reduced growth in Atlantic salmon Salmo salar smolts
Oil-adjuvanted vaccines reduce long-term growth in farmed Atlantic salmon Salmo salar, possibly via an increase in metabolic rate due to the energetic demands of the immune system. We tested this hypothesis by comparing sham-vaccinated to vaccinated smolts (total n = 2096, ca. 80 g) under different...
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ftdoajarticles:oai:doaj.org/article:c564705855c44269985de355ab1284ce 2023-05-15T15:31:55+02:00 No environmental effect on vaccine-induced reduced growth in Atlantic salmon Salmo salar smolts TWK Fraser PG Fjelldal I Sommerset T Søfteland O Høstmark MD Powell V Heen TJ Hansen 2020-07-01T00:00:00Z https://doi.org/10.3354/aei00367 https://doaj.org/article/c564705855c44269985de355ab1284ce EN eng Inter-Research https://www.int-res.com/abstracts/aei/v12/p327-338/ https://doaj.org/toc/1869-215X https://doaj.org/toc/1869-7534 1869-215X 1869-7534 doi:10.3354/aei00367 https://doaj.org/article/c564705855c44269985de355ab1284ce Aquaculture Environment Interactions, Vol 12, Pp 327-338 (2020) Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 article 2020 ftdoajarticles https://doi.org/10.3354/aei00367 2022-12-31T14:00:46Z Oil-adjuvanted vaccines reduce long-term growth in farmed Atlantic salmon Salmo salar, possibly via an increase in metabolic rate due to the energetic demands of the immune system. We tested this hypothesis by comparing sham-vaccinated to vaccinated smolts (total n = 2096, ca. 80 g) under different scenarios of water temperature (12 vs. 17°C, n = 1048 per temperature) and oxygen (O2) saturation (60, 70, 80, and 100%, n = 524 per O2 saturation level) in order to manipulate metabolic rate and O2 availability. We expected a more severe vaccination effect under conditions of high water temperature and low O2 saturation. Groups were kept in duplicate tanks under controlled temperature and hypoxia conditions for 7 wk post-vaccination before being transferred to uncontrolled common-garden natural conditions for 5 mo in a sea-cage. Body mass and length were recorded at the initiation and end of the controlled and uncontrolled environmental conditions. Vaccination and low O2 saturation at 17°C significantly reduced body mass (13 and 3% through vaccination and 9 and 20% through 60% O2 saturation at the end of the tank and sea-cage periods, respectively). However, there was no interaction between vaccination, temperature, and O2 saturation at the end of the tank or sea-cage period, lending no support to our hypothesis. A secondary observation was that emaciated ‘loser’ fish were mainly associated with the 17°C and low (mainly 60%) O2 saturation treatment. In conclusion, although vaccination led to a reduction in body mass, this effect was not influenced by environmental conditions expected to alter metabolic rate. Article in Journal/Newspaper Atlantic salmon Salmo salar Directory of Open Access Journals: DOAJ Articles Aquaculture Environment Interactions 12 327 338 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 |
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Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 TWK Fraser PG Fjelldal I Sommerset T Søfteland O Høstmark MD Powell V Heen TJ Hansen No environmental effect on vaccine-induced reduced growth in Atlantic salmon Salmo salar smolts |
topic_facet |
Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 |
description |
Oil-adjuvanted vaccines reduce long-term growth in farmed Atlantic salmon Salmo salar, possibly via an increase in metabolic rate due to the energetic demands of the immune system. We tested this hypothesis by comparing sham-vaccinated to vaccinated smolts (total n = 2096, ca. 80 g) under different scenarios of water temperature (12 vs. 17°C, n = 1048 per temperature) and oxygen (O2) saturation (60, 70, 80, and 100%, n = 524 per O2 saturation level) in order to manipulate metabolic rate and O2 availability. We expected a more severe vaccination effect under conditions of high water temperature and low O2 saturation. Groups were kept in duplicate tanks under controlled temperature and hypoxia conditions for 7 wk post-vaccination before being transferred to uncontrolled common-garden natural conditions for 5 mo in a sea-cage. Body mass and length were recorded at the initiation and end of the controlled and uncontrolled environmental conditions. Vaccination and low O2 saturation at 17°C significantly reduced body mass (13 and 3% through vaccination and 9 and 20% through 60% O2 saturation at the end of the tank and sea-cage periods, respectively). However, there was no interaction between vaccination, temperature, and O2 saturation at the end of the tank or sea-cage period, lending no support to our hypothesis. A secondary observation was that emaciated ‘loser’ fish were mainly associated with the 17°C and low (mainly 60%) O2 saturation treatment. In conclusion, although vaccination led to a reduction in body mass, this effect was not influenced by environmental conditions expected to alter metabolic rate. |
format |
Article in Journal/Newspaper |
author |
TWK Fraser PG Fjelldal I Sommerset T Søfteland O Høstmark MD Powell V Heen TJ Hansen |
author_facet |
TWK Fraser PG Fjelldal I Sommerset T Søfteland O Høstmark MD Powell V Heen TJ Hansen |
author_sort |
TWK Fraser |
title |
No environmental effect on vaccine-induced reduced growth in Atlantic salmon Salmo salar smolts |
title_short |
No environmental effect on vaccine-induced reduced growth in Atlantic salmon Salmo salar smolts |
title_full |
No environmental effect on vaccine-induced reduced growth in Atlantic salmon Salmo salar smolts |
title_fullStr |
No environmental effect on vaccine-induced reduced growth in Atlantic salmon Salmo salar smolts |
title_full_unstemmed |
No environmental effect on vaccine-induced reduced growth in Atlantic salmon Salmo salar smolts |
title_sort |
no environmental effect on vaccine-induced reduced growth in atlantic salmon salmo salar smolts |
publisher |
Inter-Research |
publishDate |
2020 |
url |
https://doi.org/10.3354/aei00367 https://doaj.org/article/c564705855c44269985de355ab1284ce |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Aquaculture Environment Interactions, Vol 12, Pp 327-338 (2020) |
op_relation |
https://www.int-res.com/abstracts/aei/v12/p327-338/ https://doaj.org/toc/1869-215X https://doaj.org/toc/1869-7534 1869-215X 1869-7534 doi:10.3354/aei00367 https://doaj.org/article/c564705855c44269985de355ab1284ce |
op_doi |
https://doi.org/10.3354/aei00367 |
container_title |
Aquaculture Environment Interactions |
container_volume |
12 |
container_start_page |
327 |
op_container_end_page |
338 |
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1766362415305326592 |