Stallion spermatozoal morphology and motility and their relationships to fertility.
D000818:Animals; D005260:Female; D005298:Fertility; D006736:Horses / Q000502:physiology*; D007315:Insemination, Artificial / Q000662:veterinary; D008297:Male; D011247:Pregnancy; D013081:Sperm Motility; D013094:Spermatozoa / Q000166:cytology*