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| − | === Pathogenesis ===
| + | #redirect[[Dictyocaulus filaria]] |
| − | *Caused by '''''[[Dictyocaulus filaria]]'''''
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| − | **Similar to [[Dictyocaulus viviparus|''D. viviparus'']] in cattle
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| − | **Lesions tend to be less widespread because worm numbers are generally low
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| − | === Diagnosis ===
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| − | *Grazing history
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| − | *Clinical signs
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| − | *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)
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| − | === Control ===
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| − | *'''''Dictyocaulus filaria''''':
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| − | **Difficult because outbreaks are unpredictable
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| − | **PGE control measures are normally sufficient to prevent outbreaks of disease
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| − | **Where these occur, remove and treat affected stock, replace with older immune sheep if necessary
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| − | **A commercial vaccine was available in the Middle East, though its use (were it still available) would be uneconomic in the UK
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| − | ==Test yourself with the Small Ruminant Nematodes Flashcards==
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| − | [[Small_Ruminant_Nematodes_Flashcards|Small Ruminant Nematodes Flashcards]]
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| | [[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]] |