Difference between revisions of "Trichostrongylus axei"

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{{Taxobox
 
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|name              = Trichostrongylus axei
 
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|kingdom            =
 
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|phylum            =
 
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|class              = [[Nematodes|Nematoda]]
 
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|sub-class          =
 
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|order              =
 
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|super-family      = [[Trichostrongyloidea]]
 
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|family            =
 
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|sub-family        =
 
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|genus              =
 
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|species            =
 
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}}
 
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Also known as: '''''Trichostrongylus extenuatus
 
  
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==Hosts==
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==== General ====
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Cattle, sheep, deer, horse, goat, donkey, pig and occasionally man.
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*Small trichostrongyle, <5mm long; stomach.
  
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==Identification==
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==== Life-Cycle ====
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''T. axei'' is a small Trichostrongyle, typically around 5mm. They are grey when young, but become reddish brown when they mature.  The spiculus are dissimilar and are not all of the same length.
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*Typical non-migratory LC confined to stomach wall.
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*Prepatent period = 3 1/2 weeks.
  
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==Life Cycle==
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==== Pathogenicity ====
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The life cycle of ''T. axei'' is typical of the superfamily [[Trichostrongyloidea]], and is direct (see [[Trichostrongyloidea - Overview|Trichostrongyloidea life cycle]]. The eggs develop into infective L3 in around one week. The larvae are then ingested by the host, and the larvae become unsheathed.  They penetrate the mucosa of the small intestine. There are two further moults, and then the larvae become adults.
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*Similar to ''Ostertagia'', except L3 penetrate mucosa between gastric glands. Leads to hyperplastic nodular lesions (several cms diameter) and erosions where epithelium is lost. Not usually a primary pathogen in horses.
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[[Category:Trichostrongyloidea]][[Category:Horse_Nematodes]]
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{{Learning
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[[Category:To_Do_-_Max]]
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|literature search = [http://www.cabdirect.org/search.html?q=title:(%22Trichostrongylus+axei%22)+OR+title:(%22Trichostrongylus+extenuatus%22) ''Trichostrongylus axei'' publications]
 
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|Vetstream = [https://www.vetstream.com/canis/search?s=nematode Nematodes]
 
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}}
 
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[[Category:Trichostrongyloidea]][[Category:Horse_Nematodes]][[Category:Cattle_Nematodes]]
 
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[[Category:Sheep_Nematodes]]
 
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[[Category:Deer_Nematodes]]
 
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[[Category:Goat_Nematodes]]
 
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[[Category:Pig_Nematodes]]
 

Revision as of 10:48, 17 July 2010

General

  • Small trichostrongyle, <5mm long; stomach.

Life-Cycle

  • Typical non-migratory LC confined to stomach wall.
  • Prepatent period = 3 1/2 weeks.

Pathogenicity

  • Similar to Ostertagia, except L3 penetrate mucosa between gastric glands. Leads to hyperplastic nodular lesions (several cms diameter) and erosions where epithelium is lost. Not usually a primary pathogen in horses.
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