Sperm producing capacity of Arab and native horses in Egypt.
D000375:Aging; D000818:Animals; D004822:Epididymis / Q000502:physiology; D006736:Horses / Q000502:physiology*; D008297:Male; D013045:Species Specificity; D013094:Spermatozoa / Q000502:physiology*; D013737:Testis / Q000254:growth & development / Q000502:physiology