Difference between revisions of "Coccidia - Poultry"

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(Created page with 'thumb|right|150px|Buff orpington - nabrown RVC [[Image:Eimeria Sporulated.jpg|thumb|right|150px|Sporulated ''Eimeria'' - Joaquim Castellà Veterinary…')
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#redirect[[Coccidiosis - Poultry]]
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[[Image:Buff orpington.jpg|thumb|right|150px|Buff orpington - nabrown RVC]]
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[[Image:Eimeria Sporulated.jpg|thumb|right|150px|Sporulated ''Eimeria'' - Joaquim Castellà Veterinary Parasitology Universitat Autònoma de Barcelona]]
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*Direct life cycle
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*1 week prepatent period
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*After oocysts are ingested, sporozoites are released which penetrate the intestinal epithelium
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*2 asexual phases of multiplication called schizogony occur followed by a phase of sexual multiplication called gametogony
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*Zygote develops into an oocyst which is then shed in the faeces
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**Oocyst measures 20-30μm
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*For each oocyst ingested, thousands are shed
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*Life cycle is '''self-limiting'''
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**Organisms from a single infection go through the sequence of developmental stages synchronously
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**Organisms leave the body simultaneously as oocysts
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*Oocysts are only infective once they have sporulated
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**Sporulation requires warmth, moisture and oxygen
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**Takes 2-3 days in broiler houses
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*Oocysts contain 4 sporocysts each with 2 sporozoites
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[[Category:Coccidia]][[Category:Poultry]]

Revision as of 21:43, 8 April 2010

Buff orpington - nabrown RVC
Sporulated Eimeria - Joaquim Castellà Veterinary Parasitology Universitat Autònoma de Barcelona
  • Direct life cycle
  • 1 week prepatent period
  • After oocysts are ingested, sporozoites are released which penetrate the intestinal epithelium
  • 2 asexual phases of multiplication called schizogony occur followed by a phase of sexual multiplication called gametogony
  • Zygote develops into an oocyst which is then shed in the faeces
    • Oocyst measures 20-30μm
  • For each oocyst ingested, thousands are shed
  • Life cycle is self-limiting
    • Organisms from a single infection go through the sequence of developmental stages synchronously
    • Organisms leave the body simultaneously as oocysts
  • Oocysts are only infective once they have sporulated
    • Sporulation requires warmth, moisture and oxygen
    • Takes 2-3 days in broiler houses
  • Oocysts contain 4 sporocysts each with 2 sporozoites