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poultry > Commercial Waterfowl > Flashcards

Commercial Waterfowl Flashcards

1
Q

Viruses of waterfowl…

A

DVH, DVE, AI, ND

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2
Q

Aetiology of DVH (Duck Viral Hepatitis)…

A

Picornavirus

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3
Q

Presentation of DVH…

A
  • 2do - 3wo
  • Acute onset, highly infectious
  • Adults = immune to infection (7+wks)
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4
Q

Clinical signs of DVH…

A

Dead birds in good condition, opisthotonus

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5
Q

Ddx of DVH…

A

DVE, bacterial septicaemia, mycotoxicosis

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6
Q

Lesions seen in DVH…

A

Liver = enlarged, petecchial/ ecchymotic
Fatty kidneys
Septicaemia carcasses

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7
Q

Dx of DVH…

A

Blood/ organ samples- virus isolation

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8
Q

Control of DVH…

A
  • Breeders = live/ inactivated vaccines
  • Ducklings = live vaccine
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9
Q
A
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10
Q

Aetiology of DVE…

A

Herpesvirus

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11
Q

Clinical signs of DVE…

A

Ataxia, eye discharge/ pasty eyelids, nasal discharge, diarrhoea (+/- blood), photophobia

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12
Q

Lesions seen in DVE…

A
  • Haemorrhages in tissues
  • Free blood in body cavities
  • Petechial haemorrhages in visceral organs
  • Haemorrhage on oesophageal mucosa
  • Necrotic foci on liver/ oesophagus
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13
Q

Dx of DVE…

A
  • History, clinical signs, lesions
  • Virus isolation, PCR
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14
Q

Control of DVE…

A

Biosecurity, avoid contact w/ wild birds, live/ inactivated vaccine

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15
Q

Presentation of AI…

A

Small decrease in mortality, drop in egg production, <feed/ water consumption

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16
Q

Necropsy of AI…

A

Aspergillosis, air sacculitis, salpingitis, egg peritonitis

17
Q

Consequences of ND…

A

Major drop in egg production, no clinical signs in younger birds

18
Q

Prevention of ND…

A

Vaccination (live/ inactivated)

19
Q

Bacterial infections of Waterfowl… (4)

A

E coli, Riemerella anatipestifer, Salmonella, Chlamydia

20
Q

Presentation of E coli in Waterfowl…

A

1-8wo, egg peritonitis in laying birds

21
Q

Dx of E coli…

A

History, clinical signs, necropsy, lab

22
Q

Tx of E coli…

A

ABs

23
Q

Prevention of E coli…

A

Hygiene, management, autogenous vaccines for breeders

24
Q

Consequences of Riemerella anatipestifer…

A

Polyserositis, exudates/ fibrin covering visceral organs, lymphoid necrosis of white pulp of spleen

25
Q

Dx of Riemerella anatipestifer…

A

Bacteriology

26
Q

Tx of Riemerella anatipestifer…

A

ABs, autogenous vaccine

27
Q

Spp of Salmonella that affect Waterfowl…

A

S indiana, S kedougou

28
Q

Dx of Salmonella in Waterfowl…

A

Signs, lesions, bacteriology

29
Q

Tx/ prevention of Salmonella…

A
  • Live/ inactivated vaccines
  • ABs, competitive exclusion
  • Hygiene, biosecurity
30
Q

Aetiology of Chlamydia…

A

Chlamydia psittaci

31
Q

Clinical signs of Chlamydia…

A

Conjunctivitis, anorexia, ruffled feathers

32
Q

Dx of Chlamydia…

A

Signs, lesions, bacteriology, serology

33
Q

Tx/ prevention of Chlamydia…

A

ABs, hygiene, biosecurity @ breeding

34
Q

Presentation of Aspergillus fumigatus…

A
  • 7do- adult
  • Gasping, weight loss, anorexia, death
35
Q

Dx of Aspergillus fumigatus…

A

Signs, lesions, mycology, PCR

36
Q

Tx/ prevention of Aspergillus fumigatus…

A

Fresh bedding material, anti-fungals, hygiene + biosecurity @ breeding

poultry (3 decks)

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