Combined serial ultrasonography and fecal progestin analysis for reproductive evaluation of the female white rhinoceros (Ceratotherium simum simum): Preliminary results
Abstract 10.1002/(SICI)1098-2361(1997)16:53.3.CO;2-S Ultrasonographic examinations of one multiparous 33-year-old female southern white rhinoceros (Ceratotherium simum simum) resulted in documentation of the animal’s estrous cycle, elucidation of the timing of ovulation in relation to estrus, and ultrasonographic evidence of endometritis and associated early embryonic death. The preovulatory follicle was observed to change in shape from spherical to […]