Seasonal pattern of salivary cortisol secretion in the greater one-horned rhino (Rhinoceros unicornis)

Please use this identifier to cite or link to this item:
Información del item - Informació de l'item - Item information
Title: Seasonal pattern of salivary cortisol secretion in the greater one-horned rhino (Rhinoceros unicornis)
Authors: Menargues Marcilla, María Asunción | Urios, Vicente | Limiñana, Rubén
Research Group/s: Didáctica de las Ciencias y la Tecnología | Zoología de Vertebrados
Center, Department or Service: Universidad de Alicante. Departamento de Didáctica General y Didácticas Específicas | Universidad de Alicante. Departamento de Ciencias de la Tierra y del Medio Ambiente | Universidad de Alicante. Centro Iberoamericano de la Biodiversidad
Keywords: Animal welfare | Indian rhinoceros | Salivary cortisol | Seasonality | Stress | Zoo visitors
Knowledge Area: Didáctica de las Ciencias Experimentales | Zoología
Issue Date: Sep-2013
Publisher: Universities Federation for Animal Welfare
Citation: Animal Welfare. 2013, 22(4): 467-472. doi:10.7120/09627286.22.4.467
Abstract: The Indian rhinoceros or greater one-horned rhino (Rhinoceros unicornis) is listed as vulnerable by the IUCN Red List of Threatened Species and, therefore, captive individuals have been subject to the European Endangered Species Programme since 1990. Enhancement of welfare is key in ensuring the breeding success of this species in captivity. Salivary cortisol has been recently used to assess welfare of captive and free-ranging animals. Nevertheless, rhythms of cortisol secretion may fluctuate throughout the year and therefore, knowledge of the circannual pattern of cortisol secretion is essential to evaluate the physiological significance of seasonal variations of cortisol levels as an indicator of stress in animals. Here, we analyse monthly differences in cortisol secretion in two Indian rhinoceros. Saliva samples of two rhinoceros were collected and analysed by radioimmunoassay for the period of one year to determine cortisol concentrations. We found a seasonal pattern of salivary cortisol secretion. The highest cortisol concentrations were found in August and decreased until reaching a nadir in January. Cortisol concentrations in these two animals showed a correlation with temperature and visitor numbers but it is not possible to draw conclusions from this study as to whether the variation in cortisol was due to these or other factors.
Sponsor: Terra Natura Foundation
ISSN: 0962-7286 (Print) | 2054-1538 (Online)
DOI: 10.7120/09627286.22.4.467
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2013 Universities Federation for Animal Welfare
Peer Review: si
Publisher version:
Appears in Collections:INV - ZV - Artículos Científicos
INV - CYT - Otros Trabajos de Investigación

Files in This Item:
Files in This Item:
File Description SizeFormat 
Thumbnail2013_Menargues_etal_AnimalWelfare_final.pdfAcceso restringido118,19 kBAdobe PDFOpen    Request a copy

Items in RUA are protected by copyright, with all rights reserved, unless otherwise indicated.