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Flashcards in Ducks and Geese Deck (33)
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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

How can aspergillosis be Px in waterfowl?

Anti fungal Tx in feed