Difference between revisions of "Strongyloidea"

From WikiVet English
Jump to navigation Jump to search
Line 10: Line 10:
 
}}
 
}}
 
<br>
 
<br>
 +
 +
== General Appearance ==
 +
*Bursate.
 +
*Relatively short (typically 1-5cm) but stout.
 +
*Heads often have characteristic features.
 +
 +
 +
== General Life-Cycle ==
 +
Like that of the trichostrongyloids (eggs are also 'typical strongyle eggs'), but:
 +
*L3 → L4 → adult (typically occurs in the large intestine).
 +
*Larvae penetrate into mucosal wall and elicit nodule formation.
 +
*Larvae of some species migrate around the body.
 +
*Prepatent period varies between species from 3weeks to 6+ months.
 +
 +
 +
 +
 +
 +
  
 
[[Strongylus vulgaris]]
 
[[Strongylus vulgaris]]

Revision as of 00:31, 23 December 2008



Infectious agents and parasitesWikiBugs Banner.png
PARASITES
NEMATODES



General Appearance

  • Bursate.
  • Relatively short (typically 1-5cm) but stout.
  • Heads often have characteristic features.


General Life-Cycle

Like that of the trichostrongyloids (eggs are also 'typical strongyle eggs'), but:

  • L3 → L4 → adult (typically occurs in the large intestine).
  • Larvae penetrate into mucosal wall and elicit nodule formation.
  • Larvae of some species migrate around the body.
  • Prepatent period varies between species from 3weeks to 6+ months.




Strongylus vulgaris

Peritonitis in sheep by penetration of intestines by larvae of Oesophagostomum columbianum

Strongylus edentatus and Strongylus equinus migrate through Peritoneal Cavity Parasitic - Pathology

Stephanuris dentatus causes peritonitis in pigs Peritoneal Cavity Parasitic - Pathology and may cause cysts in the pancreas

Syngamus laryngeus in larynx of cattle