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| The prepatent period of ''D. filaria'' is 4-5 weeks. | | The prepatent period of ''D. filaria'' is 4-5 weeks. |
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− | ==Literature Search== | + | === Pathogenesis === |
− | [[File:CABI logo.jpg|left|90px]] | + | *Caused by '''''[[Dictyocaulus filaria]]''''' |
| + | **Similar to [[Dictyocaulus viviparus|''D. viviparus'']] in cattle |
| + | **Lesions tend to be less widespread because worm numbers are generally low |
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| + | === 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) |
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− | Use these links to find recent scientific publications via CAB Abstracts (log in required unless accessing from a subscribing organisation).
| + | === Control === |
− | <br><br><br>
| + | *'''''Dictyocaulus filaria''''': |
− | [http://www.cabdirect.org/search.html?q=title%3A%28%22Dictyocaulus+filaria%22%29 ''Dictyocaulus filaria'' publications] | + | **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 |
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| + | {{Learning |
| + | |flashcards = [[Small_Ruminant_Nematodes_Flashcards|Small Ruminant Nematodes Flashcards]] |
| + | |literature search = [http://www.cabdirect.org/search.html?q=title%3A%28%22Dictyocaulus+filaria%22%29 ''Dictyocaulus filaria'' publications] |
| + | }} |
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| ==References== | | ==References== |
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− | {{review}}
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| [[Category:Dictyocaulus]][[Category:Sheep_Nematodes]] | | [[Category:Dictyocaulus]][[Category:Sheep_Nematodes]] |
− | [[Category:Expert_Review - Parasites]]
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| [[Category:Respiratory Parasitic Infections]] | | [[Category:Respiratory Parasitic Infections]] |
| [[Category:Goat_Nematodes]] | | [[Category:Goat_Nematodes]] |