Circadian Feeding Time Affects Growth of Fish

Authors

Teresa A. Noeske, Milwaukee Public Museum
Richard E. Spieler, Milwaukee Public MuseumFollow

Document Type

Article

Publication Date

1984

Publication Title

Transactions of the American Fisheries Society

ISSN

0002-8487

Volume

113

Issue/No.

4

First Page

540

Last Page

544

Abstract

Goldfish Carassius auratus were maintained on a 12L:12D (12-hour-light:12-hour-dark) photoperiod at 14 C and fed 1% of body weight once daily for 3 weeks. The fish had differences in growth depending on the feeding time relative to the light-dark cycle: Fish fed 18 hours after light onset (6 hours into darkness) grew more than others. Common carp Cyprinus carpio were maintained on a 16L:8D photoperiod at 15 C and fed 2% of body weight at one of six feeding times for 5 months. There were no consistent growth differences among treatments, nor any apparent debilitating effects of long-term enforced feeding times on common carp. The feeding time most conducive to body-weight gain appears to vary with the season and among cultured fish species. Timing the daily meal may be a valuable tool for aquaculture.

NSUWorks Citation

Teresa A. Noeske and Richard E. Spieler. 1984. Circadian Feeding Time Affects Growth of Fish .Transactions of the American Fisheries Society , (4) : 540 -544. https://nsuworks.nova.edu/occ_facarticles/192.

DOI

10.1577/1548-8659(1984)113<540:CFTAGO>2.0.CO;2