Difference between revisions of "Coccidia"

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#REDIRECT[[:Category:Coccidia]]
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==Introduction==
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[[Image:Coccidia.jpg|thumb|right|150px|Coccidia - Joel Mills]]
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*The '''oocyst''' is the resistant stage in the environment
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*The infective '''sporozoite''' is released from the oocyst
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*Inside the host, the sporozoites invade the intestinal epithelial tissue
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**Sporozoites feed and grow
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*As the sporozoite grows the nucleus divides forming a '''schizont'''
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*The schizont contains numerous elongated '''merozoites'''
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*The formation of merozoites is the first asexual reproductive stage called '''schizogony'''
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*The schizont ruptures releasing the merozoites which also invade the epithelial cells
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*Another generation of schizonts form which is the beginning of the sexual phase of reproduction called '''gametogony'''
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*The merozoites form male '''microgamonts''' or female '''macrogamonts'''
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**Collectively known as gamonts or gametocytes
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*The microgamonts released from the microgametocyte penetrate and fertilise the macrogamont (which is contained within the macrogametocyte)
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*Gametogony forms the '''zygote'''
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**Surrounded by a cyst wall
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**Forms the '''oocyst'''
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*The oocyst is passed in the faeces and is unsporulated
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*The oocyst becomes sporulated in the second asexual reproductive phase called '''sporogony'''
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*Once the oocyst is sporulated it is infective
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<big>
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'''[[Eimeria spp.|''Eimeria'' spp.]]
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'''[[Isospora spp.|''Isospora'' spp.]]
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'''[[Coccidiosis]]
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'''[[Coccidia - Poultry|Coccidia of Poultry]]
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'''[[Coccidiosis - Poultry]]
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'''[[Coccidiosis - Turkey|Coccidia of Turkeys]]
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'''[[Coccidiosis - Geese|Coccidia of Geese]]
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'''[[Coccidiosis - Duck|Coccidia of Ducks]]
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'''[[Coccidiosis - Game Birds|Coccidia of Game Birds]]
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'''[[Coccidiosis - Cattle|Coccidia of Cattle]]
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'''[[Coccidiosis - Sheep|Coccidia of Sheep]]
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'''[[Coccidiosis - Goat|Coccidia of Goats]]
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'''[[Coccidiosis - Horse|Coccidia of Horses]]
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'''[[Coccidiosis - Pig|Coccidia of Pigs]]
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'''[[Coccidiosis - Dog|Coccidia of Dogs]]
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'''[[Coccidiosis - Cat|Coccidia of Cats]]
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'''[[Coccidiosis - Rabbit|Coccidia of Rabbits]]
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'''[[Coccidia Flashcards]]
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[[Category:Coccidia]]

Revision as of 22:08, 8 April 2010

Introduction

Coccidia - Joel Mills
  • The oocyst is the resistant stage in the environment
  • The infective sporozoite is released from the oocyst
  • Inside the host, the sporozoites invade the intestinal epithelial tissue
    • Sporozoites feed and grow
  • As the sporozoite grows the nucleus divides forming a schizont
  • The schizont contains numerous elongated merozoites
  • The formation of merozoites is the first asexual reproductive stage called schizogony
  • The schizont ruptures releasing the merozoites which also invade the epithelial cells
  • Another generation of schizonts form which is the beginning of the sexual phase of reproduction called gametogony
  • The merozoites form male microgamonts or female macrogamonts
    • Collectively known as gamonts or gametocytes
  • The microgamonts released from the microgametocyte penetrate and fertilise the macrogamont (which is contained within the macrogametocyte)
  • Gametogony forms the zygote
    • Surrounded by a cyst wall
    • Forms the oocyst
  • The oocyst is passed in the faeces and is unsporulated
  • The oocyst becomes sporulated in the second asexual reproductive phase called sporogony
  • Once the oocyst is sporulated it is infective

Eimeria spp.

Isospora spp.

Coccidiosis

Coccidia of Poultry

Coccidiosis - Poultry

Coccidia of Turkeys

Coccidia of Geese

Coccidia of Ducks

Coccidia of Game Birds

Coccidia of Cattle

Coccidia of Sheep

Coccidia of Goats

Coccidia of Horses

Coccidia of Pigs

Coccidia of Dogs

Coccidia of Cats

Coccidia of Rabbits

Coccidia Flashcards