Mycoplasma hyopneumoniae

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Also known as: M.hyopneumoniae
Mycoplasma hyopneumoniae
Phylum Firmicutes
Class Mollicutes
Order Mycoplasmatales
Family Mycoplasmataceae
Genus Mycoplasma
Species M.hyopneumoniae


M.hyopneumoniae is a species of the Mycoplasmas genus. It causes Enzootic pneumonia of pigs.


M.hyopneumoniae occurs in unfavourable conditions with poor ventilation, overcrowding and temperature fluctuations. It results in stunted growth rates, coughing and occasionally respiratory distress due to consolidation in apical and cardiac lung lobes.


Immunofluorescence of lung tissue and complement fixation test or ELISA can be used for identification of M.hyopneumoniae. Treatment includes in-feed antibiotics such as tylosin, lincomycin and tiamulin. It is absent in specific-pathogen-free herds.