Flashcards in Ducks and Geese Deck (33)
Loading flashcards...
1
which v. is used for blood sampling?
medial metatarsal
2
what is angel wing?
a deformity of the wing due to excessive protein intake during growth
3
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
4
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
5
what causes sour crop?
candidiasis
6
what spp. is penile prolapse most common in? what are some causes?
mallards
venereal disease, trauma, cold weather, excessive sexual stimulation
7
what are the 2 most common tumours of geese/ducks?
osteosarcoma
hepatic tumours
8
when is neck dislocation an appropriate form of euthanasia for birds?
if they weigh < 3kg
9
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
10
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
11
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
12
How do ducklings become infected with duck viral hepatitis?
Horizontal transmission via ingestion
Type 1 and 3 contaminate equipment and remain in the environment
13
What are some Sx of duck viral hepatitis?
Opisthotonos, sudden death, haemorrhagic hepatitis, septicaemia
14
What are the three main DDX for duck viral hepatitis?
Duck viral Enteritis
Bacterial septicaemia
Mycotoxicosis
15
How can duck viral hepatitis be Px?
Live vaccine for ducklings
16
What virus causes duck viral Enteritis?
Herpesvirus
17
Which birds does duck viral Enteritis affect?
Both ducks and geese
Breeding birds more susceptible
18
How is duck viral Enteritis spread?
Oral and cloacal
Water essential
Commonly spread from wide to domestic ducks
19
What are some Sx of duck viral Enteritis?
Ataxia, ocular / nasal discharge, haemorrhagic D+, photophobia, haemorrhagic effusion
20
How is duck viral Enteritis Px?
Live vaccine yearly in April
21
Newcastle Disease can affect waterfowl. What is the main Sx?
Major drop in egg production - asymptomatic in young birds
22
Which virus strain causes avian influenza in waterfowl?
LPAI = low pathogenicity avian influenza
23
How does avian influenza affect waterfowl?
Drop in egg production
Slight increase in mortality
24
What disease does e. Coli cause in waterfowl?
Egg Peritonitis I’m laying birds
25
How can e. Coli infection be Px in flocks of waterfowl?
Autologous vaccine
26
What does riemerella anatipestifer cause in waterfowl?
Polyserositis
Exudates and fibrin deposition of viscera, organs
Lymphoid necrosis of splenic white pulp
27
What are the two duck specific salmonella spp?
S. Indiana
S. Kedougou
28
What is the main chlamydia spp which affects waterfowl?
C. Psittaci
29
What are the main Sx of chlamydia infection in waterfowl?
Conjunctivitis
Anorexia
Ruffled feathers
30
Which spp causes aspergillosis in waterfowl?
Aspergillosis fumigatus
31
How is aspergillosis transmitted between waterfowl?
Horizontal and vertical
Environmental contamination
32
What are the main Sx of aspergillosis in waterfowl?
Gasping
Weight loss
Anorexia
Death
33
