An abattoir survey of the prevalence of enzootic pneumonia in porker pigs.
D000003:Abattoirs; D000818:Animals; D001315:Australia; D009175:Mycoplasma Infections / Q000453:epidemiology / Q000662:veterinary*; D011014:Pneumonia / Q000453:epidemiology / Q000662:veterinary*; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology*