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[[Image:Strongyloides larvae.jpg|thumb|right|150px|''Strongyloides'' larvae - Joaquim Castellà Veterinary Parasitology Universitat Autònoma de Barcelona]]
[[Image:Strongyloides larvae.jpg|thumb|right|150px|''Strongyloides'' larvae - Joaquim Castellà Veterinary Parasitology Universitat Autònoma de Barcelona]]
[[Image:Strongyloides.jpg|thumb|right|150px|''Strongyloides'' - Joaquim Castellà Veterinary Parasitology Universitat Autònoma de Barcelona]][[Category:Rhabditoidea]]
[[Image:Strongyloides.jpg|thumb|right|150px|''Strongyloides'' - Joaquim Castellà Veterinary Parasitology Universitat Autònoma de Barcelona]][[Category:Rhabditoidea]]
=== ''STRONGYLOIDES WESTERI'' ===
==== General ====
*Rhabditoid, small intestine.
*Commonest in foals <6months old.
*FIRST PARASITE TO WHICH FOALS ARE EXPOSED.
==== Morphology ====
*<6mm long, similar to small trichostrongyles.
*Only female worms parasitic.
*Long oesophagus (up to one third of body length).
==== Life-Cycle ====
*Parasitic and free-living (non-parasitic) phases.
*Prepatent period 1week (embryonated egg, 50-60µm).
*Infection by:
**ingestion of L3 in mare's milk or grass; and
**skin penetration.
==== Pathogenicity ====
*Foals - severe enteritis, diarrhoea (heavy burdens).
*Adults - normally immune; may act as carriers, e.g. mare.
==== Control ====
*Regular anthelmintic treatment.
*Good hygiene.