title: Studies with timed-pregnant squirrel monkeys (Saimiri sciureus).
abstract: Timed-pregnant monkeys were produced in a large nonhabituated colony of Saimiri sciureus of Bolivian origin. In a colony of 373 females and 40 males, 277 females (74%) were considered to be inseminated, based on microscopic observation of sperm and/or detection of a coagulum (plug) in the vagina. Forty-six full-term progeny were delivered. The mean gestational period was 152.5 days (SD = 3.9 days). For continuous cohabitation, the median time to insemination was five days, with 75% of inseminations occurring within eight days. Pregnancy evaluation (mouse bioassay) indicated a high level of resorptions within the first 50 days of gestation. This may help explain the low birth rates reported for other nonhaibuated colonies.
mesh_terms: D000034:Abortion, Veterinary / Q000453:epidemiology; D000818:Animals; D000831:Animals, Newborn; D001681:Biological Assay; D001724:Birth Weight; D005260:Female; D005313:Fetal Death / Q000453:epidemiology / Q000662:veterinary; D005865:Gestational Age; D000882:Haplorhini / Q000502:physiology*; D008297:Male; D051379:Mice; D008992:Monkey Diseases / Q000453:epidemiology; D011247:Pregnancy; D011258:Pregnancy Tests / Q000662:veterinary; D011270:Pregnancy, Animal; D011817:Rabbits; D012453:Saimiri / Q000502:physiology*; D012621:Seasons