Effect of Feeding-Fasting Cycles on Oxygen Consumption and Bioenergetics of Yellow Perch

Transactions of the American Fisheries Society
By: , and 

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Abstract

We measured growth and oxygen consumption of age-1 yellow perch Perca flavescenssubjected to ad libitum (control) or variable feeding cycles of 2 (i.e., 2 d of feed, 2 d of deprivation), 6, or 12 d for a 72-d period. Individual, female yellow perch (initial weight = 51.9 ± 0.9 g [mean ± SE]) were stocked in 110-L aquaria to provide six replicates per treatment and fed measured rations of live fathead minnow Pimephales promelas. Consumption, absolute growth rate, growth efficiency, and oxygen consumption were similar among feeding regimens. However, growth trajectories for fish on the 2-d cycle were significantly lower than other feed–fast cycles. Hyperphagia occurred in all treatments. Bioenergetics model simulations indicated that consumption was significantly underestimated (t = 5.4, df = 4, P = 0.006), while growth was overestimated (t = −5.5, df = 4, P = 0.005) for fish on the 12-d cycle. However, model errors detected between observed and predicted values were low, ranging from −10.1% to +7.8%. We found that juvenile yellow perch exhibited compensatory growth (CG), but none of the feed–fast treatments resulted in growth overcompensation. Likewise, we found no evidence that respiration rates varied with CG, implying that yellow perch bioenergetics models could be used to predict the effects of feeding history and CG response on food consumption and fish growth.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Effect of Feeding-Fasting Cycles on Oxygen Consumption and Bioenergetics of Yellow Perch
Series title Transactions of the American Fisheries Society
DOI 10.1080/00028487.2012.703155
Volume 141
Issue 6
Year Published 2012
Language English
Publisher Taylor & Francis Online
Publisher location Abingdon, United Kindgom
Contributing office(s) Coop Res Unit Leetown
Description 12 p.
First page 1480
Last page 1491
Online Only (Y/N) N
Additional Online Files (Y/N) N
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