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L3 larval stage within the embryonated egg.
 
L3 larval stage within the embryonated egg.
 
|l14=Ascaridia - Poultry#Epidemiology
 
|l14=Ascaridia - Poultry#Epidemiology
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|q15=What is meant by the term ''histotropic phase''?
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|a15=
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This is where the ascaridia embed themselves into the mucosal layer of the intestines after ingestion.
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The length of this period before the final maturation has been reported to be between 3 to 54 days.
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|l15=Ascaridia - Poultry#Epidemiology
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|q16=How long is the prepatent period for ''A.galli''?
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|a16=
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5 -8 weeks
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|l16=Ascaridia - Poultry#Epidemiology
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|q17=How is ''A.galli'' transmitted?
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|a17=
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*Mainly through ingestion of embryonated eggs (L3) from contaminated feed or water supplies (faecal oral route)
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*Via the egg as the adults migrate through the lumina of the large intestine and cloaca and end up in the oviduct where they are then incorporated into the hen’s egg
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*Eating earthworms that have ingested ''A. galli'' eggs
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|l17=Ascaridia - Poultry#Epidemiology
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