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RUSVM LAM II > Poultry 2 > Flashcards

Poultry 2 Flashcards

1
Q

What serotypes of salmonella enterica are host adapted in birds?

A

S pullorum

S gallinarum

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2
Q

Clinical signs of pullorum disease?

A

“Bacillary white diarrhea”

Often pasted around the vent, gray nodules in lungs, liver, gizzard, heart and intestines

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3
Q

What causes fowl typhoid?

A

Salmonella gallinarum

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4
Q

T/F: fowl typhoid has similar signs to pullorum disease

A

True

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5
Q

What salmonella causes paratyphoid?

A

S. Typhimurium
S. Enteritidis
S. Arizonae

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6
Q

What are signs of paratyphoid?

A

Dehydration, enteritis, focal necrosis of SI, unabsorbed yolk sac, omphalitis

Birds die acutely from septicemia

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7
Q

How is salmonellaenteritidis transmitted?

A

Trans-ovarian transmission to egg

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8
Q

What species of salmonella causes diarrhea, pasty vents, huddling, and eye infections in turkey poults less than 3 weeks of age?

A

Salmonella Arizonae

Transovarian transmission

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9
Q

What diseases can Ecoli cause in chickens?

A 
Airsacculitis — caseous exudate 
Omphalitis 
Coli granuloma (Hjarre’s dz)

Enteritis, salpingitis, arthritis
Panopthalmitis - hypopyon in which one eye is blind

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10
Q

What is the most important enterotoxin of clostridium infections?

A

Type C

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11
Q

T/F: birds are highly resistant to tetanus

A

True

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12
Q

What causes flaccid paralysis is ducks?

A

Botulism “limberneck”

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13
Q

What causes an ulcerative enteritis in quail?

A

Clostridium colinum

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14
Q

What causes a necrotic enteritis in turkeys and chickens?

A

C perfringens

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15
Q

What causes a gangrenous dermatitis?

A

Multiple pathogens - clostridium and staph

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16
Q

Clinical signs of gangrenous dermatitis?

A

Swollen feet and legs
Wing tips and inner thighs red and sloughing
SQ emphysema

17
Q

What does mycobacterium avium cause?

A

Avian tuberculosis

Emaciation, diarrhea, soiling of tail feathers, death

18
Q

What would you see on necropsy of a bird with avian tuberculosis?

A

Tubercular granulomas of intestines, liver, spleen, and bone marrrow

19
Q

How can you test live birds for tuberculosis?

A

Avian tuberculin into wattle

20
Q

T/F: avian tuberculosis is zoonotic

A

True

Immunocompromised people

21
Q

What species does mycobacterium genavense affect?

A

Duck

22
Q

What is “duck plague”?

A

Highly contagious viral enteritis

Herpes virus of waterfowl

REPORTABLE

23
Q

What pathology does duck viral enteritis cause?

A

Viremia —>. Vascular damage

Bloody diarrhea, bloody conjunctivitis, nasal discharge
Hemorrhage in all organs

24
Q

What type of virus causes duck viral enteritis?

A

Herpes virus

25
Q

What type of virus causes duck viral hepatitis?

A

Picornavirus (RNA)

26
Q

T/F: duck viral hepatitis has high morbidity and high mortality

A

True

Clinical signs are ataxia, weakness, falling to side and kicking spasmodically, opisthotonos

27
Q

What does erysipelas cause in turkeys?

A

“Red skin”
Sudden death, squatting, depressed, unsteady gait, swollen snood, erysipelas blush

ZOONOTIC

28
Q

Birds were suffering from diarrhea, vent picking, and dehydration..

On necropsy you find a large edematous bursa..

What is this?

A

Infectious bursal disease

29
Q

What type of virus causes infectious bursal disease?

A

Birnavirus

Can vaccinate
Recovered chicks are immunocompromised

30
Q

What are the two neoplasic disease of chickens?

A

Marek’s disease: herpesvirus endemic in chicken flocks

Lymphoid leukosis complex: retrovirus leukosis/sarcoma

31
Q

Lymphoid infilatraiton of nerve trucks and origins

Enlarged sciatic nerve

Lymphoid tumors in various organs
Partial paralysis, blindness and visceral tumors
Swollen joints

What disease is this?

A

Marek’s disease

Neurolymphatosis

32
Q

What causes lymphoid leukosis in chickens?

A

Oncogenic retrovirus

33
Q

Where are tumors located in lymphoid leukosis ??

A

Neoplasia of bursa and liver, metastasis to other organs — b lymphocyte tumros

34
Q

Common problems of backyard flocks?

A 
Poor nutrition 
Ectoparasites: lice and mites 
Foot trauma: pododermatitis 
Predators 
Foreign body ingestion 
Cancer and heart dz

RUSVM LAM II (22 decks)

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