Relationship between sperm concentration and the incidence of polyspermy in mouse embryos fertilized in vitro.
A dose-response relationship between the incidence of polyspermy and sperm concentration was found by analysing chromosome preparations of first-cleavage mouse embryos derived from fertilizations in vitro with 3 concentrations of mouse spermatozoa (2 x 10(4), 2 x 10(6) and 1 x 10(7)/ml).
D000818:Animals; D002452:Cell Count; D005260:Female; D005306:Fertilization; D066298:In Vitro Techniques; D008297:Male; D051379:Mice; D013094:Spermatozoa / Q000166:cytology