Keywords
bull reproductive system,bull reproductive tract,cow reproductive system,cow reproductive tract,penis,testicle,seminal vesicle,vas deferens,epididymis,prostate,bulbourethral gland,Cowper's gland,bladder,endocrine gland,bull organs,bull anatomy,bull,cow organs,cow anatomy,Bos taurus,cattle,bovid,Bovinae,Bovidae,Artiodactyla,ungulate,mammal,vertebrate,reproductive system,reproductive,reproduction,reproduce,genital system,sexual reproduction,organs,internal organs,organism,vet,veterinary,veterinary medicine,bull vet,cow vet,animal,healthy,normal,adult,mature,full grown,male,warmblood,standing,upright,vertical,standing upright,stand,lateral,side view,side,lateral view,domesticated,farm animal,companion animal,pet,agriculture animal,model,model organism,biological model,animal model,animal testing,animal study,bull model,research model,experimental model,health,grown,full-grown,young adult,middle adult,old adult,animal testing,animal study,research,scientific research,scientific study,laboratory research,animal research,pathology,immunology,behavior,medicine,physiology,genetics,biology,psychology,feeder,cow reproductive system,bull reproductive tract