title: Seasonal changes in production of semen in free-ranging rhesus monkey.
mesh_terms: D000818:Animals; D001947:Breeding; D004558:Electric Stimulation; D008251:Macaca / Q000502:physiology*; D008253:Macaca mulatta / Q000502:physiology*; D008297:Male; D010587:Phagocytosis; D012621:Seasons; D012661:Semen / Q000378:metabolism*; D013091:Spermatogenesis; D013094:Spermatozoa / Q000166:cytology / Q000502:physiology; D013737:Testis / Q000033:anatomy & histology / Q000166:cytology