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Avian Encephalomyelitis Flashcards (view source)
Revision as of 21:19, 28 June 2011
, 21:19, 28 June 2011no edit summary
|a1=Avian encephalomyelitis-like virus 1 (AEV).
|a1=Avian encephalomyelitis-like virus 1 (AEV).
|l1=Avian Encephalomyelitis#Introduction
|l1=Avian Encephalomyelitis#Introduction
|q2= What are the main economic concerns for breeders and layers about AE?
|q2= Is ''avian encephalomyelitis virus'' (AEV) a RNA or DNA virus?
|a2=
|a2= AEV is a single stranded RNA (ssRNA) virus
|l2=Avian Encephalomyelitis#Introduction
|q3= What genus does AEV belong to?
|a3= Hepatovirus
|l3=Avian Encephalomyelitis#Introduction
|q4= What family does the virus belong to?
|a4=Picornaviridae
|l4=Avian Encephalomyelitis#Introduction
|q5= What are the main economic concerns for breeders and layers about AE?
|a5=
*Temporary decrease in egg production in laying hens
*Temporary decrease in egg production in laying hens
*Decrease in egg hatchability
*Decrease in egg hatchability
*Neurological disease and morbidity /mortality of chicks under three weeks of age
*Neurological disease and morbidity /mortality of chicks under three weeks of age
*Surviving chicks are considered unlikely to be profitable
*Surviving chicks are considered unlikely to be profitable
|l2=Avian Encephalomyelitis#Introduction
|l5=Avian Encephalomyelitis#Introduction
|q3= How is AE spread?
|q3= How is AE spread and what is its epidemiology?
|a3=
|a3=
*Horizontally via faecal-oral route (main route of infection)
*Horizontally via faecal-oral route (main route of infection)
*Vertical transmission from infected layer to their chicks
*Vertical transmission from infected layer to their chicks
*The virus replicates in the epithial cells of the alimentary tract and is circulated in the bloodstream to other organs and the central nervous system (CNS). The virus is shed within 3 days of oral ingestion and in young chicks can continue to be shed for over two weeks. Shedding ceases once specific antibody's are produced.
|l3= Avian Encephalomyelitis#Introduction
|l3= Avian Encephalomyelitis#Introduction
|q4= What species of birds does AE affect?
|q4= What species of birds does AE affect?