Fertilization of sheep ova following mechanical penetration of the zona pellucida.
D000818:Animals; D005260:Female; D005306:Fertilization; D007315:Insemination, Artificial; D008297:Male; D008846:Micromanipulation; D010063:Ovum / Q000166:cytology*; D012756:Sheep; D013075:Sperm Capacitation