Journal of Zoo and Wildlife Medicine · 2006 · 23 citations · 21 references
Life SciencesAnimal SciencesReproductive MedicineReproductive PhysiologyRuminant NutritionFetal PhysiologyPregnancyPregnancy BiologyPregnancy PhysiologyProgesterone AssayProgesterone Measurement
Fresh fecal samples were collected from seven adult female reticulated giraffe (Giraffa camelopardalis reticulata). Samples were collected for several weeks before, during, and for a few weeks after gestation. Fecal samples were analyzed for progesterone levels by radioimmunoassay. There were significant differences in progesterone levels between pregestational and gestational samples and between gestational and postgestational samples. These results demonstrate that fecal progesterone levels are useful in determining pregnant versus nonpregnant reticulated giraffe.
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R. M. Cormack, A.J. Underwood · Journal of Ecology · 1997 · 1.1K citations
S. E. Shideler, Ana M. Ortuño, Francisco Moran et al. · Biology of Reproduction · 1993 · 153 citations