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Proventricular Worms


Extracted From:
A Pocket Guide to
Poultry Health
and
Disease
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By Paul McMullin
© 2004
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Introduction

Dispharynx, Tetrameres and Cyrnea are nematodes, spiruroid worm parasites of poultry and game birds. They are found in the mucosa of crop and proventriculus causing mainly inapparent infections. Infection is by the oral route on exposure to the intermediate hosts, including crustaceans, grasshoppers and cockroaches.

Signs

  • Anaemia.
  • Diarrhoea.
  • Emaciation in heavily infected young chicks (Tetrameres).

Post-mortem lesions

  • Inflammation, ulceration, haemorrhage, necrosis, and thickening of mucosa of proventriculus.

Diagnosis

Macroscopic examination of lesions, identification of worms.

Treatment

Not usually required.

Prevention

Prevention of access to intermediate hosts.

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