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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Hormonal and behavioural stress responses to capture and radio-collar fitting in free-ranging pampas deer (Ozotoceros bezoarticus)

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Author(s):
Munerato, M. S. [1] ; Marques, J. A. [1] ; Caukett, N. A. [2] ; Tomas, W. M. [3] ; Zanetti, E. S. [4] ; Trovati, R. G. [5] ; Pereira, G. T. [6] ; Palme, R. [7]
Total Authors: 8
Affiliation:
[1] Sao Paulo State Univ FCAV UNESP, Fac Agr & Vet Sci, Dept Clin & Vet Surg, BR-14884900 Jaboticabal, SP - Brazil
[2] Univ Calgary, Fac Vet Med, Dept Clin & Diagnost Sci, Calgary, AB T2N 4N1 - Canada
[3] Brazilian Agr Res Corp Embrapa Pantanal, Wildlife Lab, BR-79320900 Corumba, MS - Brazil
[4] FCAV UNESP, Deer Res & Conservat Ctr NUPECCE, Sao Paulo - Brazil
[5] ESALQ USP, Luiz de Queiroz Coll Agr, Dept Ecol, BR-13418900 Piracicaba, SP - Brazil
[6] FCAV UNESP, Dept Exact Sci, BR-14884900 Jaboticabal, SP - Brazil
[7] Univ Vet Med Vetmeduni, Dept Biomed Sci, Unit Physiol Pathophysiol & Expt Endocrinol, A-1210 Vienna - Austria
Total Affiliations: 7
Document type: Journal article
Source: ANIMAL WELFARE; v. 24, n. 4, p. 437-446, SEP 2015.
Web of Science Citations: 5
Abstract

This study evaluated the short-term hormonal and behavioural responses to capture and radio-collar fitting in free-ranging pampas deer (Ozotoceros bezoarticus). Twenty adult deer (eleven females and nine males) were captured in the South Pantanal wetland (Brazil) and equipped with VHF radio-collars (marked deer). Untreated adult deer of the same sex were randomly chosen as the control group (nine females and nine males). On the day following capture, an observer followed all deer for faecal collection and behaviour evaluation. Faecal samples were immediately refrigerated and frozen at -20 degrees C (within a maximum of 12 h. Faecal glucocorticoid metabolites (FGM) were measured using an II-oxoaetiocholanolone enzyme immunoassay. A qualitative behaviour assessment and the consequences of capture were evaluated using pre-defined terminologies and scores. Flight distance was recorded using a range finder. FGM increased from 19-22 h after capture onwards and peak concentrations were five times (median) higher as the respective baseline values. FGM values of marked deer were significantly higher at 22-25 and 25-28 h compared with controls. Marked male but not female deer had significantly higher FGM values at 22-25 and 25-28 h compared with their baseline values. Marked deer were significantly more fearful, less sociable and defensive than controls. The absences of significant increases of FGM in the captured female deer may indicate that females are less prone to capture stress. The significantly more fearful, and less sociable and defensive patterns observed in marked deer may be relevant during capture of lactating females or in areas with high predator pressure. (AU)

FAPESP's process: 09/09941-7 - Effects of capture and intranasal oxygem supplementation during chemical restraint of wild pampas deer (Ozotoceros bezoarticus) in south Pantanal Wetland, Brazil
Grantee:José Antonio Marques
Support Opportunities: Regular Research Grants