title: Reproductive capacity of dairy bulls. IX. Changes in reproductive organ weights and semen characteristics of Holstein bulls during the first thirty weeks after puberty.
mesh_terms: D000367:Age Factors; D000818:Animals; D001835:Body Weight; D002417:Cattle / Q000502:physiology*; D002465:Cell Movement; D004822:Epididymis / Q000033:anatomy & histology; D008297:Male; D009929:Organ Size; D012661:Semen; D012669:Seminal Vesicles / Q000033:anatomy & histology*; D013091:Spermatogenesis; D013094:Spermatozoa / Q000166:cytology; D013737:Testis / Q000033:anatomy & histology*