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Avian Health > LECTURE 15: Respiratory Disease II > Flashcards

LECTURE 15: Respiratory Disease II Flashcards

1
Q

Herpesvirus happens in what sector?

A

Chickens

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2
Q

Herpesvirus is a _________.

A

DNA enveloped

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3
Q

Herpes virus generally happens in what age ranges for chickens?

A

Older birds

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4
Q

What is the route of transmission for herpesvirus?

A

Horizontal transmission

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5
Q

What are clinical signs of herpes virus?

A
  1. Increased mortality
  2. Typically upper respiratory
  3. Open mouth breathing
  4. Head shaking
  5. Coughing blood
  6. Drop in egg production
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6
Q

What are gross lesions of herpes virus?

A

Severe Tracheitis
Tracheal plugs

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7
Q

What are differentials for herpes virus?

A

Wet Pox, ND, AI, MG, MS, Coryza

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8
Q

What samples do you take for ILT?

A

Trachea samples, PCR, serology, Histopathology

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9
Q

How do you prevent ILT?

A

Biosecurity and Vaccination (killed vaccines)

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10
Q

Fowl pox is what type of virus?

A

Large enveloped DNA

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11
Q

What are the 2 forms of pox?

A
  1. Dry form (skin lesions)
  2. Wet form (thick tissue membrane)
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12
Q

How is fowlpox transmitted?

A

Horizontal and mechanical (biting insects, mechanic vectors, aerosol)

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13
Q

What are clinical signs of fowlpox dry form?

A
  1. Dark brown to black scabs on the unfeathered skin
  2. Blindness due to eye lesions and may lead to starvation
  3. Decreased feed consumption/ egg productiom
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14
Q

What are the clinical signs of fowlpox wet form?

A
  1. Yellow to white raised plaques on the mouth and larynx
  2. Gasping
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15
Q

What is a method of diagnosis for fowl pox?

A

Histopathology

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16
Q

How do you prevent and control fowl pox?

A
  1. Vaccination (wing web vaccine)
  2. Biosecurity (flies a huge issue with this)
17
Q

What is an infectious bronchitis?

A

Coronavirus

18
Q

Infectious bronchitis is a _____ virus?

A

RNA enveloped virus

19
Q

What are the 3 pathotypes of infectious bronchitis?

A

Respiratory
Reproduction
Renal

20
Q

Infectious bronchitis is ____ only disease?

A

chicken

21
Q

What is the transition mechanism for infectious bronchitis?

A

Horizontal and airborne

22
Q

What are the clinical signs for respiratory infectious bronchitis?

A

Swollen head

23
Q

What are the clinical signs for renal infectious bronchitis?

A

Diarrhea, nephrosis

24
Q

What are the clinical signs for reproductive infectious bronchitis?

A

Egg quality and quantity

25
Q

What samples would you take for infectious bronchitis?

A
  1. Blood (multiple sereotypes)
  2. Virus Isolation
26
Q

What are means of intervention for infectious bronchitis?

A
  1. Immunity
  2. Live serotype specific
  3. Inactivated vaccines in breeder
27
Q

What are the mycoplasmas affect turkeys?

A
  1. Mycoplasma Iowae
  2. Mycoplasma meleagridis
28
Q

What are the mycoplasmas that affect chickens?

A
  1. Mycoplasma gallisepticum
  2. Mycoplasma synoviae
29
Q

Mycoplasma ssp lacks….

A

lacks cell wall

30
Q

What is the method of spread for mycoplasma spp?

A

VERTICAL but also horizontal

31
Q

TRUE or FALSE? Mycoplasmas can affect all birds?

A

TRUE

32
Q

Infected birds of mycoplasma will be….

A

Infected for life

33
Q

What are clinical signs of MG and MS?

A
  1. Sinusitis/ arisacculitis
  2. Condemnations in the Plant
  3. Complicate respiratory viral vaccines
34
Q

What is the classical triad of MG?

A
  1. Fibrinous pericarditis
  2. Fibrinous airsacculitis
  3. Fibrinous perihepatitis
35
Q

What samples would you take for mycoplasmas?

A
  1. Serology
  2. Respiratory swabs
  3. PCR ***
  4. Next Gen Sequencing
  5. Low Isolation Rate
36
Q

Why is it hard to culture mycoplasma?

A

REALLY HARD TO GROW

Avian Health (23 decks)

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