Difference between revisions of "Haemonchus"
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| Phylum | | Phylum | ||
| − | | | + | | Nematoda |
|- | |- | ||
| Class | | Class | ||
| − | | | + | | Sercernentea |
|- | |- | ||
| Subclass | | Subclass | ||
| − | | | + | | Rhabditia |
|- | |- | ||
| Order | | Order | ||
| − | | | + | | Strongylida |
| − | |||
| − | |||
| − | |||
|- | |- | ||
| + | |||
| Genus | | Genus | ||
| − | | | + | | Haemonchus |
|- | |- | ||
| Species | | Species | ||
Revision as of 14:36, 6 July 2010
| Also known as: | Barber's pole worm |
| The most important veterinary species | Contortus |
Introduction
Haemonchus contortus is a nematode parasite from the family Trichostrongyloidea. It is found worldwide, and is an extremely important parasite of sheep and goats, particularly in tropical/ subtropical regions.
Within the UK, it is found most commonly in the South, where the climate tends to be a little warmer and drier. Some have shown complete resistance to current anthelemintics which is posing a real problem, making sheep and goat farming extremely difficult in some areas of the country.
Scientific Classification
| Kingdom | Animalia |
| Phylum | Nematoda |
| Class | Sercernentea |
| Subclass | Rhabditia |
| Order | Strongylida |
| Genus | Haemonchus |
| Species | F. Hepatica |
- Haemonchus contortus (abomasum) - sheep
- 2cm long,barber's pole appearance when fresh
- Primarily a tropical/sub-tropical parasite, although may cause problems in the UK (was restricted to SE England but has spread north to Scotland due to warmer, wetter winters in recent years)
- Blood-sucking nematode (piercing "lancet" in buccal capsule of L4 and adult worms)