Urinary cortisol sampling: a non-invasive technique for examining cortisol concentrations in the Weddell seal, Leptonychotes weddellii

Abstract 10.1002/zoo.20088.abs This study investigated the feasibility and validity of using non-invasively collected ice urine samples to measure cortisol concentrations in Weddell seals. Radio-immunoassays were used to determine urinary cortisol, and spectrophotometric assay was used to determine creatinine concentrations. This allowed for urinary cortisol/creatinine ratios (UCCR) to be compared between pure urine and urine collected […]