Difference between revisions of "Dictyocaulosis - Sheep"
Jump to navigation
Jump to search
| Line 1: | Line 1: | ||
=== Pathogenesis === | === Pathogenesis === | ||
| − | *'''''Dictyocaulus filaria''''' | + | *Caused by '''''[[Dictyocaulus filaria]]''''' |
| − | **Similar to ''D. viviparus'' in cattle | + | **Similar to [[Dictyocaulus viviparus|''D. viviparus'']] in cattle |
**Lesions tend to be less widespread because worm numbers are generally low | **Lesions tend to be less widespread because worm numbers are generally low | ||
=== Diagnosis === | === Diagnosis === | ||
| Line 18: | Line 18: | ||
[[Small_Ruminant_Nematodes_Flashcards|Small Ruminant Nematodes Flashcards]] | [[Small_Ruminant_Nematodes_Flashcards|Small Ruminant Nematodes Flashcards]] | ||
| − | [[Category: | + | [[Category:Respiratory Diseases - Sheep]] |
Revision as of 14:37, 21 January 2011
Pathogenesis
- Caused by 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