|
|
| Line 1: |
Line 1: |
| − | === Pathogenesis ===
| + | #redirect[[Dictyocaulus filaria]] |
| − | *Caused by '''''[[Dictyocaulus filaria]]'''''
| |
| − | **Similar to [[Dictyocaulus viviparus|''D. viviparus'']] in cattle
| |
| − | **Lesions tend to be less widespread because worm numbers are generally low
| |
| − | === Diagnosis ===
| |
| − | *Grazing history
| |
| − | *Clinical signs
| |
| − | *Faecal examination (larval identification possible by examining head, e.g. ''Dictyocaulus filaria'' (knob) or tail, e.g. ''Muellerius'' (single spine), ''Protostrongylus'' (wavy, no spine) → prognosis)
| |
| − | === Control ===
| |
| − | *'''''Dictyocaulus filaria''''':
| |
| − | **Difficult because outbreaks are unpredictable
| |
| − | **PGE control measures are normally sufficient to prevent outbreaks of disease
| |
| − | **Where these occur, remove and treat affected stock, replace with older immune sheep if necessary
| |
| − | **A commercial vaccine was available in the Middle East, though its use (were it still available) would be uneconomic in the UK
| |
| − | | |
| − | ==Test yourself with the Small Ruminant Nematodes Flashcards==
| |
| − | | |
| − | [[Small_Ruminant_Nematodes_Flashcards|Small Ruminant Nematodes Flashcards]]
| |
| − | | |
| − | | |
| | | | |
| | [[Category:To Do - Major]][[Category:To Do - Respiratory]] | | [[Category:To Do - Major]][[Category:To Do - Respiratory]] |
| | [[Category:Respiratory Diseases - Sheep]] | | [[Category:Respiratory Diseases - Sheep]] |
| | [[Category:Respiratory Parasitic Infections]] | | [[Category:Respiratory Parasitic Infections]] |