title: Frequency of mycoplasmae in the semen of reproduction bulls.
mesh_terms: D000818:Animals; D002417:Cattle; D005615:Freezing; D008297:Male; D009174:Mycoplasma / Q000302:isolation & purification*; D012098:Reproduction; D012661:Semen / Q000382:microbiology*; D014509:Ureaplasma / Q000302:isolation & purification