Flashcards in Ducks and Geese Deck (33)
which v. is used for blood sampling?
what is angel wing?
a deformity of the wing due to excessive protein intake during growth
what is the pathogenesis of angel wing?
excessive protein intake - deposition of uratesto in joints - ossification - carpal joint deforms as the primary feathers are being produced - quills begin to point downwards
what are the 5 main viral infectious diseases of geese/ducks?
duck viral enteritis = herpesvirus
duck viral hepatitis = picornavirus
goose viral hepatitis (Derzy's disease) = parvovirus
haemorrhagic nephritis & enteritis = polyoma virus
avian influenza = orthomyxovirus
what causes sour crop?
what spp. is penile prolapse most common in? what are some causes?
venereal disease, trauma, cold weather, excessive sexual stimulation
what are the 2 most common tumours of geese/ducks?
when is neck dislocation an appropriate form of euthanasia for birds?
if they weigh < 3kg
Duck viral hepatitis affects ducklings. What age ducklings does it affect? Why doesn’t it affect adults?
Ducklings ages 2d to 3wk
Adults are immune from 7wks
What are the three different strains of duck viral hepatitis?
Type 1 = classical disease caused by picornavirus
Type 2 = Astro Virus
Type 3 = causes by a picornavirus
Two of the strains of duck viral hepatitis are caused by a picornavirus. Which are these and is there cross protection?
Type 1 and 3
No cross protection
How do ducklings become infected with duck viral hepatitis?
Horizontal transmission via ingestion
Type 1 and 3 contaminate equipment and remain in the environment
What are some Sx of duck viral hepatitis?
Opisthotonos, sudden death, haemorrhagic hepatitis, septicaemia
What are the three main DDX for duck viral hepatitis?
Duck viral Enteritis
How can duck viral hepatitis be Px?
Live vaccine for ducklings
What virus causes duck viral Enteritis?
Which birds does duck viral Enteritis affect?
Both ducks and geese
Breeding birds more susceptible
How is duck viral Enteritis spread?
Oral and cloacal
Commonly spread from wide to domestic ducks
What are some Sx of duck viral Enteritis?
Ataxia, ocular / nasal discharge, haemorrhagic D+, photophobia, haemorrhagic effusion
How is duck viral Enteritis Px?
Live vaccine yearly in April
Newcastle Disease can affect waterfowl. What is the main Sx?
Major drop in egg production - asymptomatic in young birds
Which virus strain causes avian influenza in waterfowl?
LPAI = low pathogenicity avian influenza
How does avian influenza affect waterfowl?
Drop in egg production
Slight increase in mortality
What disease does e. Coli cause in waterfowl?
Egg Peritonitis I’m laying birds
How can e. Coli infection be Px in flocks of waterfowl?
What does riemerella anatipestifer cause in waterfowl?
Exudates and fibrin deposition of viscera, organs
Lymphoid necrosis of splenic white pulp
What are the two duck specific salmonella spp?
What is the main chlamydia spp which affects waterfowl?
What are the main Sx of chlamydia infection in waterfowl?
Which spp causes aspergillosis in waterfowl?
How is aspergillosis transmitted between waterfowl?
Horizontal and vertical
What are the main Sx of aspergillosis in waterfowl?