Changes in the fecal concentrations of cortisol and androgen metabolites in captive male jaguars (Panthera onca) in response to stress

Changes in the fecal concentrations of cortisol and androgen metabolites in captive male jaguars (Panthera onca) in response to stress

Author Morato, R.g. Google Scholar
Bueno, M.g. Google Scholar
Malmheister, P. Google Scholar
Verreschi, Ieda Therezinha do Nascimento Autor UNIFESP Google Scholar
Barnabe, R.c. Google Scholar
Institution Universidade Bandeirantes Faculdade de Medicina Veterinária Associação Pró-Carnívoros
Universidade de São Paulo (USP)
Universidade Federal de São Paulo (UNIFESP)
Abstract In the present study we determined the efficacy of the measurement of fecal cortisol and androgen metabolite concentrations to monitor adrenal and testicular activity in the jaguar (Panthera onca). Three captive male jaguars were chemically restrained and electroejaculated once or twice within a period of two months. Fecal samples were collected daily for 5 days before and 5 days after the procedure and stored at -20ºC until extraction. Variations in the concentrations of cortisol and androgen metabolites before and after the procedure were determined by solid phase cortisol and testosterone radioimmunoassay and feces dry weight was determined by drying at 37ºC for 24 h under vacuum. On four occasions, fecal cortisol metabolite levels were elevated above baseline (307.8 ± 17.5 ng/g dry feces) in the first fecal sample collected after the procedure (100 to 350% above baseline). On one occasion, we did not detect any variation. Mean (± SEM) fecal androgen concentration did not change after chemical restraint and electroejaculation (before: 131.1 ± 26.7, after: 213.7 ± 43.6 ng/g dry feces). These data show that determination of fecal cortisol and androgen metabolites can be very useful for a noninvasive assessment of animal well-being and as a complement to behavioral, physiological, and pathological studies. It can also be useful for the study of the relationship between adrenal activity and reproductive performance in the jaguar.
Keywords Fecal cortisol metabolite
Fecal androgen metabolite
Jaguar (Pantera onca)
Chemical restraint
Language English
Date 2004-12-01
Published in Brazilian Journal of Medical and Biological Research. Associação Brasileira de Divulgação Científica, v. 37, n. 12, p. 1903-1907, 2004.
ISSN 0100-879X (Sherpa/Romeo, impact factor)
Publisher Associação Brasileira de Divulgação Científica
Extent 1903-1907
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000225509100017
SciELO ID S0100-879X2004001200017 (statistics in SciELO)

Show full item record


Name: S0100-879X2004001200017.pdf
Size: 462.3Kb
Format: PDF
Open file

This item appears in the following Collection(s)




My Account