Prevalence of haemophilus somnus in the semen of bulls in Saskatchewan.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000382:microbiology*; D006192:Haemophilus Infections / Q000382:microbiology / Q000662:veterinary*; D008297:Male; D012661:Semen / Q000382:microbiology*