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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Online Access: | https://hdl.handle.net/11250/2719614 https://doi.org/10.3354/AEI00367 |
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ftimr:oai:imr.brage.unit.no:11250/2719614 2023-05-15T15:31:45+02:00 No environmental effect on vaccine-induced reduced growth in Atlantic salmon Salmo salar smolts Fraser, Thomas Fjelldal, Per Gunnar Sommerset, Ingunn Søfteland, Tina Høstmark, Ole Powell, Mark Heen, Vegar Hansen, Tom Johnny 2020 application/pdf https://hdl.handle.net/11250/2719614 https://doi.org/10.3354/AEI00367 eng eng Aquaculture Environment Interactions. 2020, 12 327-338. urn:issn:1869-215X https://hdl.handle.net/11250/2719614 https://doi.org/10.3354/AEI00367 cristin:1846570 327-338 12 Aquaculture Environment Interactions Peer reviewed Journal article 2020 ftimr https://doi.org/10.3354/AEI00367 2021-09-23T20:15:01Z 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. publishedVersion Article in Journal/Newspaper Atlantic salmon Salmo salar Institute for Marine Research: Brage IMR Aquaculture Environment Interactions 12 327 338 |
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Open Polar |
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Institute for Marine Research: Brage IMR |
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ftimr |
language |
English |
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. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Fraser, Thomas Fjelldal, Per Gunnar Sommerset, Ingunn Søfteland, Tina Høstmark, Ole Powell, Mark Heen, Vegar Hansen, Tom Johnny |
spellingShingle |
Fraser, Thomas Fjelldal, Per Gunnar Sommerset, Ingunn Søfteland, Tina Høstmark, Ole Powell, Mark Heen, Vegar Hansen, Tom Johnny No environmental effect on vaccine-induced reduced growth in Atlantic salmon Salmo salar smolts |
author_facet |
Fraser, Thomas Fjelldal, Per Gunnar Sommerset, Ingunn Søfteland, Tina Høstmark, Ole Powell, Mark Heen, Vegar Hansen, Tom Johnny |
author_sort |
Fraser, Thomas |
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 |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2719614 https://doi.org/10.3354/AEI00367 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
327-338 12 Aquaculture Environment Interactions |
op_relation |
Aquaculture Environment Interactions. 2020, 12 327-338. urn:issn:1869-215X https://hdl.handle.net/11250/2719614 https://doi.org/10.3354/AEI00367 cristin:1846570 |
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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1766362269142220800 |