Effect of season on acrosome status in the bull.
D000818:Animals; D002417:Cattle / Q000502:physiology*; D004542:Ejaculation; D006863:Hydrogen-Ion Concentration; D008297:Male; D012621:Seasons; D012661:Semen / Q000166:cytology; D013094:Spermatozoa / Q000166:cytology*; D013696:Temperature; D014887:Weather