Urinary Steroid Evaluations to Monitor Ovarian Function in Exotic Ungulates: I. Pregnanediol-3-GIucuronide lmmunoreactivity in the Okapi (Okapia johnstoni)

Immunoreactive pregnanediol-3-glucuronide was assessed in daily urine samples from five female okapis. Indexed by creatinine (CR), the resultant profiles accurately reflect ovulation and pregnancy in this species. The infertile cycle was approximately 14.5 days by this method with the preovulatory levels averaging less than 1 ng/mg CR (N = 88) for approximately eight days (N […]