Viau, Priscila, Érika Cristiane Gutierrez Felippe, and Cláudio Alvarenga de Oliveira. 2005. “Fecal Steroid and Quantification in Captive Jaguars (Panthera onca): Validation of a Method”. Brazilian Journal of Veterinary Research and Animal Science 42 (4): 262-70. https://doi.org/10.11606/issn.1678-4456.bjvras.2005.26420.