Difference between revisions of "Haemonchus"

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{| cellpadding="10" cellspacing="0" border="1"
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| Also known as:
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| '''Barber's pole worm
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| The most important veterinary species
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|'''''contortus'''''
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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. 
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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.
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*''Haemonchus contortus'' (abomasum) - sheep
 
*''Haemonchus contortus'' (abomasum) - sheep
 
**2cm long,'''barber's pole''' appearance when fresh
 
**2cm long,'''barber's pole''' appearance when fresh

Revision as of 13:37, 6 July 2010

Also known as: Barber's pole worm
The most important veterinary species contortus

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.

  • 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)