Accommodating the cost of growth and swimming in fish—the applicability of exercise-induced growth to juvenile hapuku (Polyprion oxygeneios)
Induced-swimming can improve the growth and feed conversion efficiency of finfish aquaculture species, such as salmonids and Seriola sp., but some species, such as Atlantic cod, show no or a negative productivity response to exercise. As a possible explanation for these species-specific differences,...
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ftpubmed:oai:pubmedcentral.nih.gov:4249255 2023-05-15T15:27:38+02:00 Accommodating the cost of growth and swimming in fish—the applicability of exercise-induced growth to juvenile hapuku (Polyprion oxygeneios) Khan, Javed R. Trembath, Caroline Pether, Steve Bruce, Michael Walker, Seumas P. Herbert, Neill A. 2014-12-01 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4249255 http://www.ncbi.nlm.nih.gov/pubmed/25520662 https://doi.org/10.3389/fphys.2014.00448 en eng Frontiers Media S.A. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/25520662 http://dx.doi.org/10.3389/fphys.2014.00448 Copyright © 2014 Khan, Trembath, Pether, Bruce, Walker and Herbert. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. CC-BY Physiology Text 2014 ftpubmed https://doi.org/10.3389/fphys.2014.00448 2014-12-21T00:54:37Z Induced-swimming can improve the growth and feed conversion efficiency of finfish aquaculture species, such as salmonids and Seriola sp., but some species, such as Atlantic cod, show no or a negative productivity response to exercise. As a possible explanation for these species-specific differences, a recent hypothesis proposed that the applicability of exercise training, as well as the exercise regime for optimal growth gain (ERopt growth), was dependent upon the size of available aerobic metabolic scope (AMS). This study aimed to test this hypothesis by measuring the growth and swimming metabolism of hapuku, Polyprion oxygeneios, to different exercise regimes and then reconciling the metabolic costs of swimming and specific dynamic action (SDA) against AMS. Two 8-week growth trials were conducted with ERs of 0.0, 0.25, 0.5, 0.75, 1, and 1.5 body lengths per second (BL s−1). Fish in the first trial showed a modest 4.8% increase in SGR over static controls in the region 0.5–0.75 BL s−1 whereas the fish in trial 2 showed no significant effect of ER on growth performance. Reconciling the SDA of hapuku with the metabolic costs of swimming showed that hapuku AMS is sufficient to support growth and swimming at all ERs. The current study therefore suggests that exercise-induced growth is independent of AMS and is driven by other factors. Text atlantic cod PubMed Central (PMC) Frontiers in Physiology 5 |
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Physiology Khan, Javed R. Trembath, Caroline Pether, Steve Bruce, Michael Walker, Seumas P. Herbert, Neill A. Accommodating the cost of growth and swimming in fish—the applicability of exercise-induced growth to juvenile hapuku (Polyprion oxygeneios) |
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Physiology |
description |
Induced-swimming can improve the growth and feed conversion efficiency of finfish aquaculture species, such as salmonids and Seriola sp., but some species, such as Atlantic cod, show no or a negative productivity response to exercise. As a possible explanation for these species-specific differences, a recent hypothesis proposed that the applicability of exercise training, as well as the exercise regime for optimal growth gain (ERopt growth), was dependent upon the size of available aerobic metabolic scope (AMS). This study aimed to test this hypothesis by measuring the growth and swimming metabolism of hapuku, Polyprion oxygeneios, to different exercise regimes and then reconciling the metabolic costs of swimming and specific dynamic action (SDA) against AMS. Two 8-week growth trials were conducted with ERs of 0.0, 0.25, 0.5, 0.75, 1, and 1.5 body lengths per second (BL s−1). Fish in the first trial showed a modest 4.8% increase in SGR over static controls in the region 0.5–0.75 BL s−1 whereas the fish in trial 2 showed no significant effect of ER on growth performance. Reconciling the SDA of hapuku with the metabolic costs of swimming showed that hapuku AMS is sufficient to support growth and swimming at all ERs. The current study therefore suggests that exercise-induced growth is independent of AMS and is driven by other factors. |
format |
Text |
author |
Khan, Javed R. Trembath, Caroline Pether, Steve Bruce, Michael Walker, Seumas P. Herbert, Neill A. |
author_facet |
Khan, Javed R. Trembath, Caroline Pether, Steve Bruce, Michael Walker, Seumas P. Herbert, Neill A. |
author_sort |
Khan, Javed R. |
title |
Accommodating the cost of growth and swimming in fish—the applicability of exercise-induced growth to juvenile hapuku (Polyprion oxygeneios) |
title_short |
Accommodating the cost of growth and swimming in fish—the applicability of exercise-induced growth to juvenile hapuku (Polyprion oxygeneios) |
title_full |
Accommodating the cost of growth and swimming in fish—the applicability of exercise-induced growth to juvenile hapuku (Polyprion oxygeneios) |
title_fullStr |
Accommodating the cost of growth and swimming in fish—the applicability of exercise-induced growth to juvenile hapuku (Polyprion oxygeneios) |
title_full_unstemmed |
Accommodating the cost of growth and swimming in fish—the applicability of exercise-induced growth to juvenile hapuku (Polyprion oxygeneios) |
title_sort |
accommodating the cost of growth and swimming in fish—the applicability of exercise-induced growth to juvenile hapuku (polyprion oxygeneios) |
publisher |
Frontiers Media S.A. |
publishDate |
2014 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4249255 http://www.ncbi.nlm.nih.gov/pubmed/25520662 https://doi.org/10.3389/fphys.2014.00448 |
genre |
atlantic cod |
genre_facet |
atlantic cod |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/25520662 http://dx.doi.org/10.3389/fphys.2014.00448 |
op_rights |
Copyright © 2014 Khan, Trembath, Pether, Bruce, Walker and Herbert. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fphys.2014.00448 |
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Frontiers in Physiology |
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5 |
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