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Poultry > Ducks and Geese > Flashcards

Ducks and Geese Flashcards

1
Q

which v. is used for blood sampling?

A

medial metatarsal

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2
Q

what is angel wing?

A

a deformity of the wing due to excessive protein intake during growth

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3
Q

what is the pathogenesis of angel wing?

A

excessive protein intake - deposition of uratesto in joints - ossification - carpal joint deforms as the primary feathers are being produced - quills begin to point downwards

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4
Q

what are the 5 main viral infectious diseases of geese/ducks?

A

duck viral enteritis = herpesvirus
duck viral hepatitis = picornavirus
goose viral hepatitis (Derzy’s disease) = parvovirus
haemorrhagic nephritis & enteritis = polyoma virus
avian influenza = orthomyxovirus

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5
Q

what causes sour crop?

A

candidiasis

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6
Q

what spp. is penile prolapse most common in? what are some causes?

A

mallards

venereal disease, trauma, cold weather, excessive sexual stimulation

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7
Q

what are the 2 most common tumours of geese/ducks?

A

osteosarcoma

hepatic tumours

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8
Q

when is neck dislocation an appropriate form of euthanasia for birds?

A

if they weigh < 3kg

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9
Q

Duck viral hepatitis affects ducklings. What age ducklings does it affect? Why doesn’t it affect adults?

A

Ducklings ages 2d to 3wk

Adults are immune from 7wks

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10
Q

What are the three different strains of duck viral hepatitis?

A

Type 1 = classical disease caused by picornavirus

Type 2 = Astro Virus

Type 3 = causes by a picornavirus

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11
Q

Two of the strains of duck viral hepatitis are caused by a picornavirus. Which are these and is there cross protection?

A

Type 1 and 3

No cross protection

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12
Q

How do ducklings become infected with duck viral hepatitis?

A

Horizontal transmission via ingestion

Type 1 and 3 contaminate equipment and remain in the environment

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13
Q

What are some Sx of duck viral hepatitis?

A

Opisthotonos, sudden death, haemorrhagic hepatitis, septicaemia

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14
Q

What are the three main DDX for duck viral hepatitis?

A

Duck viral Enteritis
Bacterial septicaemia
Mycotoxicosis

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15
Q

How can duck viral hepatitis be Px?

A

Live vaccine for ducklings

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16
Q

What virus causes duck viral Enteritis?

A

Herpesvirus

17
Q

Which birds does duck viral Enteritis affect?

A

Both ducks and geese

Breeding birds more susceptible

18
Q

How is duck viral Enteritis spread?

A

Oral and cloacal

Water essential

Commonly spread from wide to domestic ducks

19
Q

What are some Sx of duck viral Enteritis?

A

Ataxia, ocular / nasal discharge, haemorrhagic D+, photophobia, haemorrhagic effusion

20
Q

How is duck viral Enteritis Px?

A

Live vaccine yearly in April

21
Q

Newcastle Disease can affect waterfowl. What is the main Sx?

A

Major drop in egg production - asymptomatic in young birds

22
Q

Which virus strain causes avian influenza in waterfowl?

A

LPAI = low pathogenicity avian influenza

23
Q

How does avian influenza affect waterfowl?

A

Drop in egg production

Slight increase in mortality

24
Q

What disease does e. Coli cause in waterfowl?

A

Egg Peritonitis I’m laying birds

25
Q

How can e. Coli infection be Px in flocks of waterfowl?

A

Autologous vaccine

26
Q

What does riemerella anatipestifer cause in waterfowl?

A

Polyserositis
Exudates and fibrin deposition of viscera, organs
Lymphoid necrosis of splenic white pulp

27
Q

What are the two duck specific salmonella spp?

A

S. Indiana

S. Kedougou

28
Q

What is the main chlamydia spp which affects waterfowl?

A

C. Psittaci

29
Q

What are the main Sx of chlamydia infection in waterfowl?

A

Conjunctivitis
Anorexia
Ruffled feathers

30
Q

Which spp causes aspergillosis in waterfowl?

A

Aspergillosis fumigatus

31
Q

How is aspergillosis transmitted between waterfowl?

A

Horizontal and vertical

Environmental contamination

32
Q

What are the main Sx of aspergillosis in waterfowl?

A

Gasping
Weight loss
Anorexia
Death

33
Q

How can aspergillosis be Px in waterfowl?

A

Anti fungal Tx in feed

Poultry (5 decks)

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