Dietary effects on biomarkers of growth, stress, and welfare of diploid and triploid Atlantic salmon (Salmo salar) during parr-smolt transformation
Triploidy is induced in Atlantic salmon (Salmo salar) to produce sterile fish for genetic containment and to hinder early sexual maturation in farmed fish, but it can have unwanted negative effects on growth, health, and welfare. However, the growth and welfare of triploid fish may be improved by ad...
Published in: | Aquaculture Reports |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2022
|
Subjects: | |
Online Access: | https://hdl.handle.net/10037/25115 https://doi.org/10.1016/j.aqrep.2022.101123 |
id |
ftunivtroemsoe:oai:munin.uit.no:10037/25115 |
---|---|
record_format |
openpolar |
spelling |
ftunivtroemsoe:oai:munin.uit.no:10037/25115 2023-05-15T15:30:31+02:00 Dietary effects on biomarkers of growth, stress, and welfare of diploid and triploid Atlantic salmon (Salmo salar) during parr-smolt transformation Bortoletti, Martina Maccatrozzo, Lisa Peruzzi, Stefano Strand, Jo Espen Tau Jobling, Malcolm Radaelli, Giuseppe Bertotto, Daniela 2022-04-12 https://hdl.handle.net/10037/25115 https://doi.org/10.1016/j.aqrep.2022.101123 eng eng Elsevier Aquaculture Reports Bortoletti, Maccatrozzo L, Peruzzi S, Strand JET, Jobling M., Radaelli G, Bertotto D. Dietary effects on biomarkers of growth, stress, and welfare of diploid and triploid Atlantic salmon (Salmo salar) during parr-smolt transformation. Aquaculture Reports. 2022;24 FRIDAID 2016877 doi:10.1016/j.aqrep.2022.101123 2352-5134 https://hdl.handle.net/10037/25115 openAccess Copyright 2022 The Author(s) Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2022 ftunivtroemsoe https://doi.org/10.1016/j.aqrep.2022.101123 2022-05-18T23:02:56Z Triploidy is induced in Atlantic salmon (Salmo salar) to produce sterile fish for genetic containment and to hinder early sexual maturation in farmed fish, but it can have unwanted negative effects on growth, health, and welfare. However, the growth and welfare of triploid fish may be improved by adjusting the rearing environment, feeding conditions and diets. This study evaluated physiological changes and used a suite of biomarkers to assess the potential impact of diet on growth and welfare of diploid and triploid salmon during the parr-smolt transformation. Diploids and triploids, held at low temperature, were fed a standard salmon feed or one with hydrolyzed fish proteins thought to be suitable for triploid Atlantic salmon. Fish muscle was collected monthly from October to December (2454–3044 degree-days post-start feeding, ddPSF) for analysis of biomarkers, and the progress of the parr-smolt transformation was monitored using a seawater challenge test. Real-Time PCR and radioimmunoassay were used to assess growth and stress response biomarkers (expression of genes of the GH-IGF axis and HSP70; cortisol concentrations), and oxidative stress biomarkers of lipids (MDA) and proteins (AOPP) were assayed. Changes in the biomarkers were related to sampling time rather than being associated with diet or ploidy, and the changes were compatible with the progression of the parr-smolt transformation. Growth and expressions of the biomarkers in triploid Atlantic salmon were similar to those of their diploid counterparts, and there was no evidence that the rearing conditions employed in the study resulted in stress responses being elicited. Overall, the physiological indicators and biomarkers employed in this study did not point to there being any dietary effects on performance and welfare of diploid and triploid salmon that were undergoing parr-smolt transformation. Article in Journal/Newspaper Atlantic salmon Salmo salar University of Tromsø: Munin Open Research Archive Aquaculture Reports 24 101123 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
description |
Triploidy is induced in Atlantic salmon (Salmo salar) to produce sterile fish for genetic containment and to hinder early sexual maturation in farmed fish, but it can have unwanted negative effects on growth, health, and welfare. However, the growth and welfare of triploid fish may be improved by adjusting the rearing environment, feeding conditions and diets. This study evaluated physiological changes and used a suite of biomarkers to assess the potential impact of diet on growth and welfare of diploid and triploid salmon during the parr-smolt transformation. Diploids and triploids, held at low temperature, were fed a standard salmon feed or one with hydrolyzed fish proteins thought to be suitable for triploid Atlantic salmon. Fish muscle was collected monthly from October to December (2454–3044 degree-days post-start feeding, ddPSF) for analysis of biomarkers, and the progress of the parr-smolt transformation was monitored using a seawater challenge test. Real-Time PCR and radioimmunoassay were used to assess growth and stress response biomarkers (expression of genes of the GH-IGF axis and HSP70; cortisol concentrations), and oxidative stress biomarkers of lipids (MDA) and proteins (AOPP) were assayed. Changes in the biomarkers were related to sampling time rather than being associated with diet or ploidy, and the changes were compatible with the progression of the parr-smolt transformation. Growth and expressions of the biomarkers in triploid Atlantic salmon were similar to those of their diploid counterparts, and there was no evidence that the rearing conditions employed in the study resulted in stress responses being elicited. Overall, the physiological indicators and biomarkers employed in this study did not point to there being any dietary effects on performance and welfare of diploid and triploid salmon that were undergoing parr-smolt transformation. |
format |
Article in Journal/Newspaper |
author |
Bortoletti, Martina Maccatrozzo, Lisa Peruzzi, Stefano Strand, Jo Espen Tau Jobling, Malcolm Radaelli, Giuseppe Bertotto, Daniela |
spellingShingle |
Bortoletti, Martina Maccatrozzo, Lisa Peruzzi, Stefano Strand, Jo Espen Tau Jobling, Malcolm Radaelli, Giuseppe Bertotto, Daniela Dietary effects on biomarkers of growth, stress, and welfare of diploid and triploid Atlantic salmon (Salmo salar) during parr-smolt transformation |
author_facet |
Bortoletti, Martina Maccatrozzo, Lisa Peruzzi, Stefano Strand, Jo Espen Tau Jobling, Malcolm Radaelli, Giuseppe Bertotto, Daniela |
author_sort |
Bortoletti, Martina |
title |
Dietary effects on biomarkers of growth, stress, and welfare of diploid and triploid Atlantic salmon (Salmo salar) during parr-smolt transformation |
title_short |
Dietary effects on biomarkers of growth, stress, and welfare of diploid and triploid Atlantic salmon (Salmo salar) during parr-smolt transformation |
title_full |
Dietary effects on biomarkers of growth, stress, and welfare of diploid and triploid Atlantic salmon (Salmo salar) during parr-smolt transformation |
title_fullStr |
Dietary effects on biomarkers of growth, stress, and welfare of diploid and triploid Atlantic salmon (Salmo salar) during parr-smolt transformation |
title_full_unstemmed |
Dietary effects on biomarkers of growth, stress, and welfare of diploid and triploid Atlantic salmon (Salmo salar) during parr-smolt transformation |
title_sort |
dietary effects on biomarkers of growth, stress, and welfare of diploid and triploid atlantic salmon (salmo salar) during parr-smolt transformation |
publisher |
Elsevier |
publishDate |
2022 |
url |
https://hdl.handle.net/10037/25115 https://doi.org/10.1016/j.aqrep.2022.101123 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
Aquaculture Reports Bortoletti, Maccatrozzo L, Peruzzi S, Strand JET, Jobling M., Radaelli G, Bertotto D. Dietary effects on biomarkers of growth, stress, and welfare of diploid and triploid Atlantic salmon (Salmo salar) during parr-smolt transformation. Aquaculture Reports. 2022;24 FRIDAID 2016877 doi:10.1016/j.aqrep.2022.101123 2352-5134 https://hdl.handle.net/10037/25115 |
op_rights |
openAccess Copyright 2022 The Author(s) |
op_doi |
https://doi.org/10.1016/j.aqrep.2022.101123 |
container_title |
Aquaculture Reports |
container_volume |
24 |
container_start_page |
101123 |
_version_ |
1766360966420758528 |