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Avian Health > LECTURE 18: Digestive Diseases II > Flashcards

LECTURE 18: Digestive Diseases II Flashcards

1
Q

What is infectious bursal disease? Gumboro disease

A

dsRNA non enveloped virus

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2
Q

What are the 2 serotypes?

A
  1. Pathogenic in chickens
  2. Chickens/Turkeys
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3
Q

IBD targets what cells?

A

B cells

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4
Q

What are the pathotypes for IBD?

A

Classical (bursal lesions), variant (usually seen), and very virulent

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5
Q

What is the route of transmission for IBD?

A

Fecal-oral very infectious

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6
Q

What are the clinical signs of IBD?

A
  1. Diarrhea, depression, ruffled feathers, dehydration, vent picking
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7
Q

What are the means of sampling for IBD?

A
  1. Blood
  2. Histopathology
  3. Tissue for VI
  4. Swabs for molecular
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8
Q

What are some gross lesions for IBD?

A
  1. Intramuscular hemorrhages
  2. Necrosis in other immune organs
  3. Swollen kidneys
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9
Q

What are histopathologic lesions of IBD?

A

lymphoid follicle necrosis

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10
Q

What is the tx for IBD?

A
  1. NO TX
  2. C&D needs to be really good
  3. Vax breeders
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11
Q

What is hemorrhage enteritis virus?

A

Non enveloped, dsDNA virus
Causing hemorrhages in the intestine

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12
Q

HEV only affects what sector?

A

TURKEYS

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13
Q

What are clinical signs of HEV?

A

Rapid onset of bloody diarrhea and death
Dead birds are pale and well-fleshed

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14
Q

What are gloss lesions of HEV?

A

Frank blood GI lumen
Large spleen
Hemorrhages of muscles

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15
Q

How do you test for HEV?

A
  1. Blood
  2. Histopathology
  3. Swabs for molecular
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16
Q

What is the methods of treatment and control for HEV?

A
  1. Vaccination
  2. Antibiotics
17
Q

What is poult enteritis mortality syndrome?

A

We don’t know what causes the mortality in poults but its happening (only in meat type turkeys)

18
Q

How is PEM transmitted?

A

Fecal-oral

19
Q

What are clinical signs of PEM?

A
  1. Loud vocalization
  2. dehydrated legs/small legs
20
Q

How do you sample for PEM?

A

You can do everything because this is more of a process of elimination

21
Q

What is runting-stunting/malabsorption syndrome?

A

syndrome in broilers (chickens meat type only)

22
Q

Was does RSS look like?

A

Intestine filled with fluid and gas

23
Q

How can you sample for RSS?

A

You can do everything because this is more of a process of elimination

24
Q

What is duck virus enteritis?

A

herpesvirus in ducks

25
Q

What is the transmission of DVE?

A

Horizontal transmission

26
Q

What are clinical signs of DVE?

A

Sudden death, high mortality, bloody diarrhea

27
Q

What cells do DVE target?

A

Endothelial cells vascular damage

28
Q

How can you test for DVE?

A
  1. Histopathology
  2. Tissue for VI
  3. Blood
  4. Swabs for molecular
29
Q

How do you prevent DVE?

A

Test and cull, prevent exposure to wild waterfowl, and vaccination

Avian Health (23 decks)

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