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Created page with '=== Pathogenesis === *'''''Dictyocaulus filaria''''' **Similar to ''D. viviparus'' in cattle **Lesions tend to be less widespread because worm numbers are generally low === Diagn…'
=== Pathogenesis ===
*'''''Dictyocaulus filaria'''''
**Similar to ''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
[[Category:Sheep_Nematodes]]
*'''''Dictyocaulus filaria'''''
**Similar to ''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
[[Category:Sheep_Nematodes]]