SPERM PENETRATION THROUGH THE ZONA PELLUCIDA OF THE SHEEP EGG.
D000818:Animals; D003585:Cell Biology; D005306:Fertilization; D008297:Male; D010063:Ovum; D012106:Research; D012756:Sheep; D013084:Sperm-Ovum Interactions; D013094:Spermatozoa; D015044:Zona Pellucida
CYTOLOGY; EXPERIMENTAL LAB STUDY; FERTILIZATION; OVUM; SHEEP; SPERMATOZOA