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Replacement of fishmeal with corn gluten meal in feeds for juvenile rainbow trout (Oncorhynchus mykiss) does not affect oxygen consumption during forced swimming

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Siqingerile, S., & Pirhonen, J. (2017). Replacement of fishmeal with corn gluten meal in feeds for juvenile rainbow trout (Oncorhynchus mykiss) does not affect oxygen consumption during forced swimming. Aquaculture, 479, 616-618. https://doi.org/10.1016/j.aquaculture.2017.07.002
Published in
Aquaculture
Authors
Siqingerile, Siqingerile |
Pirhonen, Juhani
Date
2017
Discipline
Akvaattiset tieteetAquatic Sciences
Copyright
© 2017 Published by Elsevier B.V. This is a final draft version of an article whose final and definitive form has been published by Elsevier. Published in this repository with the kind permission of the publisher.

 
We compared oxygen consumption (MO2, mg/kg/h) of c. 80 g rainbow trout (Oncorhynchus mykiss) in an intermittent-flow swim respirometer at 15 °C. Before the tests the fish were grown in flow through tanks (15 °C) with either fishmeal (FM) or corn gluten meal (CGM) based diets (c. 52% protein) for a period of 3–4.5 months. Ten individuals from both treatment groups were fasted for 48 h before the swim test, which consisted of 18 loops of 210 s over three different periods: acclimation period (6 loops at 0.5 body lengths per s, BL/s), exercise period (8 loops at increased speed from 1 to 2.5 BL/s with recovery loops at 0.5 BL/s), and a recovery period (four loops at 0.5 BL/s). We did not observe significant differences in MO2 between the two groups at any of the three measurement periods (repeated measures-Anova). The maximum (mean ± SE) MO2 values, measured during the last exercise period at 2.5 BL/s, did not differ significantly between the treatments: 404 ± 18.7 mg/kg/h and 427 ± 50.6 mg/kg/h in FM and CGM groups, respectively. Our result supports an earlier finding that origin of the protein does not affect MO2 during swimming in salmonids. This is the first report of the effect of a plant protein on MO2 of a carnivorous fish during forced swimming, and these data lend support to further development of sustainable diets to replace fishmeal with plant proteins. Abbreviations: BLbody lengths CFcondition factor CGMcorn gluten meal FMfishmeal MO2oxygen consumption (mg/kg/h) ...
Publisher
Elsevier
ISSN Search the Publication Forum
0044-8486
Keywords
salmonids metabolic rate swimming respirometer fishmeal replacement protein sources kalatiede lohikalat ruokinta lohi
DOI
https://doi.org/10.1016/j.aquaculture.2017.07.002
URI

http://urn.fi/URN:NBN:fi:jyu-201707193329

Publication in research information system

https://converis.jyu.fi/converis/portal/detail/Publication/27110357

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