Difference between revisions of "Ascaridia - Poultry Flashcards"

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<FlashCard questions="20">
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<FlashCard questions="14">
|q1=What species of ''Ascaridia'' affect poultry?
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|q1=What species of ascarid affect poultry?
 
|a1=
 
|a1=
 
*''A. galli''
 
*''A. galli''
*''A. compar''
 
 
*''A. dissimilis''
 
*''A. dissimilis''
 
*''A. columbae''
 
*''A. columbae''
 
|l1=Ascaridia - Poultry#Introduction
 
|l1=Ascaridia - Poultry#Introduction
|q2=What part of the GI tract can these ''Ascaridia''  be found in?
+
|q2=What part of the GI tract can these ascarids be found in?
 
|a2=
 
|a2=
 
The small intestine.
 
The small intestine.
 
|l2=Ascaridia - Poultry#Introduction
 
|l2=Ascaridia - Poultry#Introduction
|q3=What effect do these parasites have on poultry?
+
|q3=What effect do these parasites have of poultry?
 
|a3=
 
|a3=
*Haemorrhagic enteritis
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*Reproductive disease
*Heavy infections, cause partial or total obstruction of the duodenum/jejunum.
+
**Heavy infections, cause partial or total obstruction of the duodenum/jejunum.
 
|l3=Ascaridia - Poultry#Introduction
 
|l3=Ascaridia - Poultry#Introduction
|q4=Does the male or female ''Ascaridia'' tend to be bigger?
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|q4=Do the male or female ''ascaridia'' tend to be bigger?
 
|a4=
 
|a4=
 
Females are bigger as they range from 72 to 116 mm in length; whereas males only range from 51 to 76 mm in length.  
 
Females are bigger as they range from 72 to 116 mm in length; whereas males only range from 51 to 76 mm in length.  
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In the middle of the body.
 
In the middle of the body.
 
|l6=Ascaridia - Poultry#Introduction
 
|l6=Ascaridia - Poultry#Introduction
|q7=What is the main host for ''A. galli''?
+
|q7=What is the main host for ''A.Galli''?
 
|a7=
 
|a7=
 
Chickens, but it can also infect:
 
Chickens, but it can also infect:
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Turkeys
 
Turkeys
 
|l8=Ascaridia - Poultry#Signalment
 
|l8=Ascaridia - Poultry#Signalment
|q9=What species of bird does ''A. columbae'' infect?
+
|q9=What species of bird does A. columbae'' infect?
 
|a9=
 
|a9=
 
Pigeons
 
Pigeons
 
|l9=Ascaridia - Poultry#Signalment
 
|l9=Ascaridia - Poultry#Signalment
|q10=What are the clinical signs associated with an ''Ascaridia'' infection in poultry?
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|q10=What are the clinical signs associated with an ''ascaridia'' infection in poultry?
 
|a10=
 
|a10=
 
*Anorexia
 
*Anorexia
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*Reduced blood sugar levels
 
*Reduced blood sugar levels
 
*Distended ureters with urates  
 
*Distended ureters with urates  
|l10=Ascaridia - Poultry#Clinical Signs
+
|l10=Ascaridia - Poultry#Clinical signs
|q11=At what age in chickens does ''A.galli'' produce more severe clinical signs?
+
|q11=At what age in chickens does A.galli produce more severe clinical signs?
 
|a11=
 
|a11=
Up to 3 months of age, after which the worm burden normally decreases, although it can still be very high.
+
Up to 3 months of age, after which the worm burden normally decreases.
 
|l11=Ascaridia - Poultry#Signalment
 
|l11=Ascaridia - Poultry#Signalment
|q12=What is the distribution of ''Ascaridia'' in poultry?
+
|q12=What is the distributoionof ascaridia in poultry?
 
|a12=
 
|a12=
 
Worldwide
 
Worldwide
 
|l12=Ascaridia - Poultry#Distribution
 
|l12=Ascaridia - Poultry#Distribution
|q13=What type of life cycle does ''A. galli'' have?
+
|q13=What type of life cycle does ''A.galli'' have?
 
|a13=
 
|a13=
A direct life cycle
+
A direct life cycle.
 
|l13=Ascaridia - Poultry#Epidemiology
 
|l13=Ascaridia - Poultry#Epidemiology
|q14=What is the infective stage of the ''Ascaridia'' species?
 
|a14=
 
L3 -larval stage within the embryonated egg.
 
|l14=Ascaridia - Poultry#Epidemiology
 
|q15=What is meant by the term ''histotropic phase''?
 
|a15=
 
This is where the ascaridia embed themselves into the mucosal layer of the intestines after ingestion.
 
  
The length of this period before the final maturation has been reported to be between 3 to 54 days.
 
|l15=Ascaridia - Poultry#Epidemiology
 
|q16=How long is the prepatent period for ''A. galli''?
 
|a16=
 
5-8 weeks
 
|l16=Ascaridia - Poultry#Epidemiology
 
|q17=How is ''A. galli'' transmitted?
 
|a17=
 
*Mainly through ingestion of embryonated eggs (L3) from contaminated feed or water supplies (faecal oral route)
 
*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
 
*Eating earthworms that have ingested ''A. galli'' eggs
 
|l17=Ascaridia - Poultry#Epidemiology
 
|q18=How can ''A. galli'' be diagnosed?
 
|a18=
 
*Clinical signs
 
*Faecal examination
 
*Post-mortem (PM)- evidence of enteritis/haemorrhagic enteritis, extensive damage to the glandular epithelium, adhesion of the mucosal villi and pressure atrophy from adult worms.
 
  
In chronic infections the intestinal wall can become distended as muscle tone is lost.
+
 
|l18=Ascaridia - Poultry#Diagnosis
+
 
|q19=How can ''A. galli'' be treated?
 
|a19=
 
In feed treatment with either:
 
*Piperazine salts
 
*Levamisole
 
*Benzimidazole
 
|l19=Ascaridia - Poultry#Treatment
 
|q20=How can you control ''Ascaridia'' infections?
 
|a20=
 
*Free range systems, young birds can be isolated and put onto ground previously unused by poultry
 
*Rotation of poultry runs
 
*Raised feeding and watering stations - reducing faecal-oral transmission
 
*Breeding to develop a genetic resistance is being discussed
 
|l20=Ascaridia - Poultry#Control
 
 
</FlashCard>
 
</FlashCard>
  
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[[Category:CABI Flashcards]]
 
[[Category:CABI Flashcards]]
 
[[Category:Neurological Diseases Flashcards]]
 
[[Category:Neurological Diseases Flashcards]]
[[Category:Alimentary Diseases Flashcards]]
 

Revision as of 15:06, 1 July 2011

Question Answer Article
What species of ascarid affect poultry? Link to Article
What part of the GI tract can these ascarids be found in? Link to Article
What effect do these parasites have of poultry? Link to Article
Do the male or female ascaridia tend to be bigger? Link to Article
What distinguishing properties do males have? Link to Article
Where is the opening to the females reproductive organs? Link to Article
What is the main host for A.Galli? Link to Article
What species of bird does A. dissimilis infect? Link to Article
What species of bird does A. columbae infect? Link to Article
What are the clinical signs associated with an ascaridia infection in poultry? Link to Article
At what age in chickens does A.galli produce more severe clinical signs? Link to Article
What is the distributoionof ascaridia in poultry? Link to Article
What type of life cycle does A.galli have? [[Ascaridia - Poultry#Epidemiology


|Link to Article]]
[[|Link to Article]]