Difference between revisions of "Enzootic Pneumonia - Lambs"
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*Caused by [[Mannheimia haemolytica|''Pasteurella (Manheimia) haemolytica'']], possibly together with [[:Category:Mycoplasmas|''Mycoplasma ovipneumoniae'']] | *Caused by [[Mannheimia haemolytica|''Pasteurella (Manheimia) haemolytica'']], possibly together with [[:Category:Mycoplasmas|''Mycoplasma ovipneumoniae'']] | ||
*Mainly in late spring/early summer after environmental stress i.e. handling or moving | *Mainly in late spring/early summer after environmental stress i.e. handling or moving | ||
| − | *May be acute with producing a fibrinonecrotic [[Bronchitis#Infectious causes of bronchitis or bronchiolitis|broncho]][[Pneumonia Overview#Infectious causes of pneumonia|pneumonia]] and associated [[ | + | *May be acute with producing a fibrinonecrotic [[Bronchitis#Infectious causes of bronchitis or bronchiolitis|broncho]][[Pneumonia Overview#Infectious causes of pneumonia|pneumonia]] and associated [[Pleuritis|pleuritis]] |
*Or tending towards chronicity with abscessation and fibrous pleural adhesions | *Or tending towards chronicity with abscessation and fibrous pleural adhesions | ||
*A septicaemic form (mortality 5%) is reported to follow the stress of movement to new pasture in the autumn in weaned lambs. | *A septicaemic form (mortality 5%) is reported to follow the stress of movement to new pasture in the autumn in weaned lambs. | ||
Revision as of 16:33, 20 February 2011
- Caused by Pasteurella (Manheimia) haemolytica, possibly together with Mycoplasma ovipneumoniae
- Mainly in late spring/early summer after environmental stress i.e. handling or moving
- May be acute with producing a fibrinonecrotic bronchopneumonia and associated pleuritis
- Or tending towards chronicity with abscessation and fibrous pleural adhesions
- A septicaemic form (mortality 5%) is reported to follow the stress of movement to new pasture in the autumn in weaned lambs.
- Foci of necrosis containing many bacteria are seen at the site of initial invasion in the pharynx and in the liver
- Meningitis in young lambs and mastitis in ewes are other expressions