Difference between revisions of "Enzootic Pneumonia - Pigs"
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*Also called '''mycoplasmal pneumonia''' | *Also called '''mycoplasmal pneumonia''' | ||
*Major cause of unthriftiness in young pigs | *Major cause of unthriftiness in young pigs | ||
| − | *[[ | + | *[[Pneumonia Overview#Infectious causes of pneumonia|Pneumonia]] in weaned pigs |
*Cough, reduced growth rate | *Cough, reduced growth rate | ||
*Attached to cilia - no [[Respiratory System General Introduction - Pathology#Mucociliary escalator|mucociliary clearance]] | *Attached to cilia - no [[Respiratory System General Introduction - Pathology#Mucociliary escalator|mucociliary clearance]] | ||
| Line 12: | Line 12: | ||
**In other areas there may be small red to grey focal lesions evident which indicate the bronchiolar orientation of the inflammatory process | **In other areas there may be small red to grey focal lesions evident which indicate the bronchiolar orientation of the inflammatory process | ||
*Histologically | *Histologically | ||
| − | **Changes result from a catarrhal [[ | + | **Changes result from a catarrhal [[Bronchointerstitial Pneumonia|bronchointerstitial pneumonia]] |
**In chronic cases, prominent accumulations of lymphoid cells can be seen around airways and blood vessels | **In chronic cases, prominent accumulations of lymphoid cells can be seen around airways and blood vessels | ||
Revision as of 18:41, 19 February 2011
- Caused by Mycoplasma hyopneumoniae and Mycoplasma hyorhinis
- Also called mycoplasmal pneumonia
- Major cause of unthriftiness in young pigs
- Pneumonia in weaned pigs
- Cough, reduced growth rate
- Attached to cilia - no mucociliary clearance
- Usually non-fatal unless there is secondary infection (e.g. Pasteurella multocida)
- Gross pathology:
- Confluent consolidation of the cranioventral lung lobes
- In other areas there may be small red to grey focal lesions evident which indicate the bronchiolar orientation of the inflammatory process
- Histologically
- Changes result from a catarrhal bronchointerstitial pneumonia
- In chronic cases, prominent accumulations of lymphoid cells can be seen around airways and blood vessels