English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/66731
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


A biochemical study of fasting, subfeeding, and recovery processes in yellow-legged gulls

AuthorsAlonso-Álvarez, Carlos ; Ferrer, Miguel
Issue Date2001
PublisherUniversity of Chicago Press
CitationPhysiological and Biochemical Zoology 74: 703- 713 (2001)
AbstractAn investigation of the effects of fasting, subfeeding, and refeeding on plasma biochemistry was carried out on 22 captive yellow-legged gulls Larus cachinnans Pallas. These birds showed the same fasting endurance model described in other species, but with an important decrease in glucose plasma concentration and very great differences between individuals when reaching the deterioration limit, suggesting a moderate physiological adaptation to long periods of fasting. A different model was proposed in subfed gulls in relation to fasted gulls, based on lipid and protein use, which could be reflected by changes in nitrogen wastes and triglyceride levels in this experiment. Thus, the subfed gulls might use protein directly from the diet as an energy source, thereby reducing the use of fat stores. The gulls quickly recovered body mass during the refeeding period, but while some plasma substances quickly reached their initial values, others showed many changes before the end of the experiment, which could reflect a process of metabolic restabilization. These results contribute to a better knowledge of fasting, subfeeding, and refeeding processes in birds and can be added to a recent study about fasting in gulls.
Identifiersdoi: 10.1086/322932
issn: 1522-2152
Appears in Collections:(EBD) Artículos
Files in This Item:
File Description SizeFormat 
Physiol.pdf247,58 kBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.