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| − | ==Introduction==
| + | #REDIRECT[[:Category:Coccidia]] |
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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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| − | ==Coccidia of Rabbits==
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| − | *3 pathogenic ''Eimeria'' species
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| − | **2 in the [[Caecum - Anatomy & Physiology|caecum]]
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| − | **1 in the bile duct
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| − | *''Eimeria steidae''
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| − | **Parasitises the bile duct epithelium
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| − | **Travels via the bile duct to the [[Liver - Anatomy & Physiology|liver]] where it forms large white nodules
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| − | **Oocysts travel in the bile and are passed out in the faeces
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| − | **Causes ascites, [[Intestine Diarrhoea - Pathology|diarrhoea]], weight loss and polyuria
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| − | *Serious disease of both pet and farmed rabbits
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| − | *Treatment is by administration of drugs in drinking water
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| − | **E.g. Toltrazuril
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| − | *Hygiene is the best method of prevention to prevent sporocysts from sporulating
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| − | *Medicated feed can be used in commercial units
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| − | **E.g. Rabenidine
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| − | ==[[Protozoa Flashcards - Wikibugs#Coccidia|Coccidia Flashcards]]==
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| − | [[Category:Coccidia]]
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