Assessment of estrus cyclicity in the Asian elephant (Elephas maximus) by measurement of fecal progesterone metabolite 5α-P-3OH, using a non-invasive assay
| Autor: | N. Kalaivanan, Polani B. Seshagiri, Ratna Ghosal, Raman Sukumar |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
medicine.medical_specialty
Elephants Enzyme-Linked Immunosorbent Assay Estrous Cycle Pregnanolone Luteal phase Feces Endocrinology Animal science Elephas Asian elephant Pregnancy Internal medicine Follicular phase medicine Animals Longitudinal Studies Progesterone Estrous cycle biology Reproduction medicine.disease biology.organism_classification Pregnancy Animal Animal Science and Zoology Female Hormone |
| Zdroj: | General and comparative endocrinology. 175(1) |
| ISSN: | 1095-6840 |
| Popis: | Reproductive management of the Asian elephant (Elephas maximus) is important for its conservation. To monitor its estrous cyclicity, we earlier used an indirect ELISA to show that levels of fecal progesterone (P(4))-metabolite (allopregnanolone: 5 alpha-P-3OH) in semi-captive females sampled randomly positively correlated with serum P(4) levels [12]. In this longitudinal study (51 weeks), we measured levels of fecal 5 alpha-P-3OH and serum P(4) in seven semi-captive female elephants. Females exhibited three types of hormonal profiles. Four females showed cyclical patterns of fecal 5 alpha-P-3OH and serum P(4) typical of normal estrous cycles, two showed acyclic pattern while one showed high values indicative of a pregnant animal. Values for anestrous or follicular phases were |
| Databáze: | OpenAIRE |
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