Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/19631
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Feeding entrainment of locomotor activity rhythms, digestive enzymes and neuroendocrine factors in goldfish
Authors: Vera, LM
De, Pedro Nuria
Gomez-Milan, Encarnacion
Delgado, Maria Jesus
Sanchez-Muros, Maria J
Madrid, Juan Antonio
Sanchez-Vazquez, F Javier
Contact Email: luisa.veraandujar@stir.ac.uk
Keywords: goldfish
FEO
locomotor activity
amylase
protease
NPY
cortisol
melatonin
Issue Date: 28-Feb-2007
Publisher: Elsevier
Citation: Vera L, De Pedro N, Gomez-Milan E, Delgado MJ, Sanchez-Muros MJ, Madrid JA & Sanchez-Vazquez FJ (2007) Feeding entrainment of locomotor activity rhythms, digestive enzymes and neuroendocrine factors in goldfish, Physiology and Behavior, 90 (2-3), pp. 518-524.
Abstract: The existence of food anticipatory activity (FAA) in animals subjected to daily feeding schedules seems to be mediated by a feeding-entrainable oscillator (FEO). Such an FEO may help in anticipating meal time and so optimizing food acquisition and nutrient utilization. In this study we investigated the existence of FAA and whether digestive enzymes, plasma cortisol, hypothalamic NPY and gastrointestinal tract (GIT) and plasma melatonin were entrained by periodic feeding in goldfish. We observed that periodically fed goldfish showed FAA in locomotor activity as well as in amylase and NPY. Alkaline protease and GIT melatonin were higher after feeding, whereas plasma cortisol levels were reduced. Plasma melatonin remained unmodified before and after meal time. These results suggested that scheduled feeding entrained both behavioral and certain physiological patterns in goldfish, FAA being of adaptive value to anticipate a meal and prepare the digestive physiology of fish.
Type: Journal Article
URI: http://hdl.handle.net/1893/19631
DOI Link: http://dx.doi.org/10.1016/j.physbeh.2006.10.017
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Aquaculture
Universidad Complutense de Madrid
University of Almeria
Universidad Complutense de Madrid
University of Almeria
University of Murcia
University of Murcia

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