Difference between revisions of "Metastrongylus"
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| − | *Found in [[ | + | *Found in [[Bronchitis#Infectious causes of bronchitis or bronchiolitis|bronchioles and smaller bronchi]] |
*Grossly: | *Grossly: | ||
**Small grey nodules, especially along ventral border of caudal lobes | **Small grey nodules, especially along ventral border of caudal lobes | ||
| Line 20: | Line 20: | ||
*Histologically: | *Histologically: | ||
**Catarrhal and eosinophilic bronchitis and bronchiolitis | **Catarrhal and eosinophilic bronchitis and bronchiolitis | ||
| − | **Possibly [[ | + | **Possibly [[Atelectasis|atelectasis]] |
*Rarely becomes extensive | *Rarely becomes extensive | ||
| − | *May transmit [[ | + | *May transmit [[Swine Influenza|swine influenza]] |
[[Category:Metastrongyloidea]][[Category:Pig_Nematodes]] | [[Category:Metastrongyloidea]][[Category:Pig_Nematodes]] | ||
| − | [[Category:To_Do_-_Parasites]] | + | [[Category:To_Do_-_Parasites]][[Category:To Do - Major]] |
| + | [[Category:Respiratory Parasitic Infections]] | ||
Latest revision as of 23:13, 14 May 2011
Lungworms of Pigs
METASTRONGYLUS species
- Found in the bronchioles and smaller bronchi.
- Three species, but these are all very similar.
- Look like the Dictyocaulus species in ruminants and produce similar pathology.
- Very pathogenic and can cause severe lung damage.
- Even low level infections will check growth.
- Immunity develops quickly.
- Larvated eggs with a wavy outline passed in faeces.
- Intermediate host is the earthworm, therefore this only affects outdoor pigs.
- Becoming more common with the trend towards free-range husbandry.
- Infection occurs when the earthworm is eaten.
- Larvae migrate via the mesenteric lymph nodes to the lungs.
- Found in bronchioles and smaller bronchi
- Grossly:
- Small grey nodules, especially along ventral border of caudal lobes
- Adult worms in bronchi and bronchioles
- Histologically:
- Catarrhal and eosinophilic bronchitis and bronchiolitis
- Possibly atelectasis
- Rarely becomes extensive
- May transmit swine influenza