Fecal steroid and quantification in captive jaguars (Panthera onca): validation of a method

  • Priscila Viau Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Reprodução Animal, São Paulo, SP
  • Érika Cristiane Gutierrez Felippe Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Reprodução Animal, São Paulo, SP
  • Cláudio Alvarenga de Oliveira Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Reprodução Animal, São Paulo, SP
Keywords: Nondomestic species, Steroids, Radioimmunoassay

Abstract

Ovarian function of captive jaguars (Panthera onca; adults n=2 and pre-pubertal n=3) was assessed by extraction and quantification of fecal estrogens and progestins. Fecal samples were obtained 2-7 times per week during 16-18 months. Validation of solid phase radioimmunoassay for progesterone and 17b-estradiol was performed for jaguar fecal extracts. Mean concentration the fecal estrogen (ng/g of dry feces) in pre-pubertal animals was 10,97 (range, 0,28 - 59,16) and adults animals was 68,99 (range, 3,50 - 609,37). Fecal progestins (mg/g of dry feces) had a mean concentration of 0,26 (range, 0,02 - 4,44) in pre-pubertal animals and adults animals was 0,85 (range, 0,08 - 6,51).

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Published
2005-08-01
How to Cite
Viau, P., Felippe, Érika, & Oliveira, C. (2005). Fecal steroid and quantification in captive jaguars (Panthera onca): validation of a method. Brazilian Journal of Veterinary Research and Animal Science, 42(4), 262-270. https://doi.org/10.11606/issn.1678-4456.bjvras.2005.26420
Section
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