Difference between revisions of "Pneumonic Pasteurellosis"
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*In clinically normal cattle ''Mann. haemolytica'' serotype 2 is present in low numbers, only in nasal cavity and tonsils | *In clinically normal cattle ''Mann. haemolytica'' serotype 2 is present in low numbers, only in nasal cavity and tonsils | ||
*Clinical signs: depression, anorexia, rapid shallow respiration, crusty nose with mucopurulent discharge, serous ocular discharge | *Clinical signs: depression, anorexia, rapid shallow respiration, crusty nose with mucopurulent discharge, serous ocular discharge | ||
| − | *Acute [[ | + | *Acute [[Bronchitis#Infectious causes of bronchitis or bronchiolitis|bronchopneumonia]] and may progress to [[Lungs Inflammatory - Pathology#Lobar pneumonia|lobar pneumonia]] with toxaemia |
*Pathology | *Pathology | ||
**Lobar, cranioventral exudative pneumonia with fibrin, [[Pleural Cavity & Membranes Inflammatory - Pathology|fibrinous pleuritis]], areas of coagulative necrosis | **Lobar, cranioventral exudative pneumonia with fibrin, [[Pleural Cavity & Membranes Inflammatory - Pathology|fibrinous pleuritis]], areas of coagulative necrosis | ||
Revision as of 16:24, 19 February 2011
- Synonym: Shipping fever
- Caused by Manheimia haemolytica biotype A serotype 1 (90%) and Pasteurella multocida
- In young, growing cattle
- In clinically normal cattle Mann. haemolytica serotype 2 is present in low numbers, only in nasal cavity and tonsils
- Clinical signs: depression, anorexia, rapid shallow respiration, crusty nose with mucopurulent discharge, serous ocular discharge
- Acute bronchopneumonia and may progress to lobar pneumonia with toxaemia
- Pathology
- Lobar, cranioventral exudative pneumonia with fibrin, fibrinous pleuritis, areas of coagulative necrosis
- Histology
- Large numbers of bacteria are usually associated with necrotic lesions