title: Time relations of squirrel monkey (Saimiri sciureus) sperm capacitation and ovum maturation in an in-vitro fertilization system.
abstract: First polar body expulsion in the squirrel monkey ovum occurred at an average of 13.1 h after hCG injection when observed in culture but could occur as early as 5 h after hCG. the mean time for extrusion of the second polar body was 4.7 h after insemination of the culture with freshly ejaculated spermatozoa (16.3 h after hCG). The earliest time, and therefore also that of sperm capacitation, was 2 h after insemination. First cleavage occurred 16.2 h after insemination.
mesh_terms: D000818:Animals; D002427:Cebidae / Q000502:physiology*; D006063:Chorionic Gonadotropin / Q000494:pharmacology; D005260:Female; D005307:Fertilization in Vitro; D008297:Male; D008540:Meiosis; D010060:Ovulation / Q000187:drug effects; D010063:Ovum / Q000502:physiology*; D012453:Saimiri / Q000502:physiology*; D013075:Sperm Capacitation; D013997:Time Factors
chemical_list: D006063:Chorionic Gonadotropin