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Ascaridia - Poultry Flashcards (view source)
Revision as of 17:14, 16 August 2011
, 17:14, 16 August 2011no edit summary
<FlashCard questions="20">
<FlashCard questions="20">
|q1=What species of ascarid affect poultry?
|q1=What species of ''Ascaridia'' 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 ascarids be found in?
|q2=What part of the GI tract can these ''Ascaridia'' 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 of poultry?
|q3=What effect do these parasites have on poultry?
|a3=
|a3=
*Reproductive disease
*Haemorrhagic enteritis
*Heavy infections, cause partial or total obstruction of the duodenum/jejunum.
|l3=Ascaridia - Poultry#Introduction
|l3=Ascaridia - Poultry#Introduction
|q4=Do the male or female ''ascaridia'' tend to be bigger?
|q4=Does 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.
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:
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?
|q10=What are the clinical signs associated with an ''Ascaridia'' infection in poultry?
|a10=
|a10=
*Anorexia
*Anorexia
*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.
Up to 3 months of age, after which the worm burden normally decreases, although it can still be very high.
|l11=Ascaridia - Poultry#Signalment
|l11=Ascaridia - Poultry#Signalment
|q12=What is the distributoionof ascaridia in poultry?
|q12=What is the distribution of ''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?
|q14=What is the infective stage of the ''Ascaridia'' species?
|a14=
|a14=
L3 larval stage within the embryonated egg.
L3 -larval stage within the embryonated egg.
|l14=Ascaridia - Poultry#Epidemiology
|l14=Ascaridia - Poultry#Epidemiology
|q15=What is meant by the term ''histotropic phase''?
|q15=What is meant by the term ''histotropic phase''?
The length of this period before the final maturation has been reported to be between 3 to 54 days.
The length of this period before the final maturation has been reported to be between 3 to 54 days.
|l15=Ascaridia - Poultry#Epidemiology
|l15=Ascaridia - Poultry#Epidemiology
|q16=How long is the prepatent period for ''A.galli''?
|q16=How long is the prepatent period for ''A. galli''?
|a16=
|a16=
5 -8 weeks
5-8 weeks
|l16=Ascaridia - Poultry#Epidemiology
|l16=Ascaridia - Poultry#Epidemiology
|q17=How is ''A.galli'' transmitted?
|q17=How is ''A. galli'' transmitted?
|a17=
|a17=
*Mainly through ingestion of embryonated eggs (L3) from contaminated feed or water supplies (faecal oral route)
*Mainly through ingestion of embryonated eggs (L3) from contaminated feed or water supplies (faecal oral route)
*Eating earthworms that have ingested ''A. galli'' eggs
*Eating earthworms that have ingested ''A. galli'' eggs
|l17=Ascaridia - Poultry#Epidemiology
|l17=Ascaridia - Poultry#Epidemiology
|q18=How can ''A.galli'' be diagnosed?
|q18=How can ''A. galli'' be diagnosed?
|a18=
|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
|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>
[[Category:CABI Flashcards]]
[[Category:CABI Flashcards]]
[[Category:Neurological Diseases Flashcards]]
[[Category:Neurological Diseases Flashcards]]
[[Category:Alimentary Diseases Flashcards]]