Changes in urinary concentrations of total estrogen and pregnanediol in a female giant panda (Ailuropoda melanoleuca) from 1991 to 2000
Abstract 10.1002/zoo.10105.abs Total estrogen and pregnanediol concentrations in urine samples from one female giant panda were measured from 1991–2000. This female experienced her first estrus at the age of 5 years 3 months in 1991. From 1992 on, estrous behavior was observed every year between January and June, and the peak values of total estrogen […]
Ovarian hormone concentrations and genital swelling patterns in female chimpanzees with Norplant implants
Abstract 10.1002/(SICI)1098-2361(1997)16:33.3.CO;2-A The purpose of this study was to assess the effects of Norplant implants on ovarian hormone secretion and genital swelling patterns in female chimpanzees. Urine samples were collected during one natural cycle before (n = 5 females) and one cycle ∼6 months following (n = 7 females) insertion of Norplant implants. Genital swelling […]