Assessment of testicular endocrine function in captive African elephants by measurement of urinary and fecal androgens

Authors: Andre Ganswindt, Michael Heistermann, Santiago Borragan, J. Keith Hodges

Publication/Journal: Zoo Biology

Keywords: epiandrosterone, feces, loxodonta africana, noninvasive methodologies, testosterone, urine

2002

Reproductive endocrine monitoring of elephants: An essential tool for assisting captive management

Authors: Janine L. Brown

Publication/Journal: Zoo Biology

Keywords: estrous cycle, hormones, non-invasive monitoring, pregnancy, progestogens, testis

2000

Assessment of ovarian function in the African elephant (Loxodonta africana) by measurement of 5α-reduced progesterone metabolites in serum and urine

Authors: M. Heistermann, B. Trohorsch, J. K. Hodges

Publication/Journal: Zoo Biology

Keywords: hormone excretion, luteal function, non-invasive monitoring, ovarian cycle, urine

1997

Evaluation of progesterone and 20-oxo-progestagens in the plasma of Asian (Elephas maximus) and African (Loxodonta africana) elephants

Authors: Franz Schwarzenberger, Günter Strauss, Hans- O. Hoppen, Willem Schaftenaar, Steph J. Dieleman, Wolfgang Zenker, Olivier Pagan

Publication/Journal: Zoo Biology

Keywords: 5α-reduced 20-oxo-pregnanes, estrous cycle, pregnancy, progesterone, reproductive monitoring

1997

Measurement of fecal steroids in the black rhinoceros (Diceros bicornis) using group-specific enzyme immunoassays for 20-oxo-pregnanes

Authors: Franz Schwarzenberger, Kristina Tomášová, Dana Holečková, Bernd Matern, Erich Möstl

Publication/Journal: Zoo Biology

Keywords: noninvasive, perrisodactyla, pregnancy diagnosis, reproductive monitoring, rhinoceros conservation

1996