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Pathology II > Lecture 24: Poultry 1 > Flashcards

Lecture 24: Poultry 1 Flashcards

1
Q

A group of Young chicks suddenly die. Owner informs you he just installed new heat lamps. Everything else about history is normal. What are you worried about

A

teflon toxicity from heat lamps containing teflon—> heat emits gaseous toxin that targets lungs causing massive pulmonary edema and hemorrhage

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2
Q

identify 1-3

A
  1. Tongue
  2. Glottis
  3. Choana with sharp choanal papillae
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3
Q

what this and what is fx

A

Uropygial gland or preen gland- produces lipid product onto feathers to make impermeable to water

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4
Q

what is circled and what are arrows pointing to

A

circle- thyroid gland
Arrows: syrinx

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5
Q

what is name of general body cavity, how many total body cavities a and air sacs

A

coelom
8 peritoneal cavities
7-8 air sacs

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6
Q

what body cavities indicated by 1-3

A
  1. Hepatic peritoneal cavity
  2. Ventral peritoneal cavity
  3. Intestinal peritoneal cavity
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7
Q

what does the intestinal peritoneal cavity contain

A

alimentary tract, pancreas, reproductive tract

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8
Q

Identify tract, 1 and arrow

A

Intestinal peritoneal cavity
1. Air sacs
Arrow: duodenal loop with pancreas

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9
Q

identify 1-4

A
  1. Lung
  2. Kidney
  3. Spleen
  4. Cloaca
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10
Q

what is unique about bird skull and brain

A

pneumatized skull (communicates with cervical cephalic air sac but no respiratory function)

Lissencephaly- no gyri and Sulci

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11
Q

what type of virus is hemorrhagic enteritis and who does it affect

A

adenovirus
Affects turkeys > 4weeks

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12
Q

what signs of you see with hemorrhagic enteritis

A

cloacal hemorrhage, splenomegaly, dark intestinal segments (necrohemorrhagic enteritis)

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13
Q

6 week old turkey- what likely wrong

A

hemorrhagic enteritis (adenovirus)

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14
Q

what type of virus is marble spleen disease and who does it affect

A

pheasants > 3 months
Adenovirus

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15
Q

what are some signs fo marble spleen disease

A
  1. Acute respiratory distress and suffocation
  2. Pulmonary edema
  3. Friable splenomegaly
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16
Q

what is mortality for marble spleen disease

A

high

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17
Q

marble spleen disease may cause Subclinical ___, leading to __

A

immunosuppression, secondary bacterial infections

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18
Q

4 month old pheasant euthanized for severe acute respiratory distress. Perform necropsy and see this what likely wrong

A

marble spleen disease (adenovirus)

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19
Q

what are some signs of quail bronchitis

A

respiratory signs, catarrhal tracheitis and airsacculitis, conjunctivitis

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20
Q

quail trachea what likely cause of plug material in trachea

A

Quail bronchitis (adenovirus)

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21
Q

what type of virus is avian encephalomyelitis: epidemic tremors and who does it affect severely

A

picornavirus
Affects chicks 1-2 weeks old

22
Q

what are some signs of avian encephalomyelitis: epidemic tremors

A

tremors, paralysis, ataxia

23
Q

what does avian encephalomyelitis (picornavirus) cause in adults

A

degree egg production

24
Q

what are some other lesions seen in avian encephalomyelitis

A
  1. White spots on stomach walls
  2. Cataracts
  3. Neurologic
25
t or f: avian influenza is zoonotic and reportable
true
26
what are some signs of LPAI
mild respiratory signs, decrease egg production
27
what are some signs of HPAI
respiratory, neurologic, and reproductive signs
28
what is mortality for HPAI
90-100%
29
what are some lesions seen with HPAI
cyanosis, hemorrhage, edema, necrosis
30
Group of birds suddenly died- what wrong in pictures and what cause
shank hemorrhage, comb/waddle hemorrhage Likely HPAI
31
what type of virus is lymphoid leukosis vs mareks disease
lymphoid leukosis: retrovirus Mareks: herpesvirus
32
lymphoid leukosis or mareks: virus integrated into host genome
lymphoid leukosis
33
what age does lymphoid leukosis affect
>16 weeks
34
what age does mareks disease affect
>4 weeks
35
what is target cell for lymphoid leukosis vs mareks disease
lymphoid: B lymphocyte Mareks: T lymphocyte
36
how is lymphoid leukosis vs mareks transmitted
lymphoid leukosis: vertical and horizontal Mareks: horizontal
37
lymphoid leukosis or mareks: bursal lymphoma
lymphoid leukosis
38
lymphoid leukosis or mareks: neuropathy
mareks
39
what are some clinical findings for lymphoid leukosis
pale, emaciated, dehydrated, drop in egg production, anorexia
40
what are some clinical finding in mareks disease
leg/wing paralysis, depression, anorexia, incoordination, dehydration, cutaneous tumors
41
2.5yr old rooster, euthanized due to B cell lymphoma- is it mareks or lymphoid leukosis
Lymphoid leukosis
42
observe these signs in bird- what is likely the cause
Mareks disease
43
what are two findings that could indicate mareks or lymphoid leukosis
hepatic lymphoma and splenic lymphoma—> need to know if B or T cell
44
Are these signs consistent with mareks or lymphoid leukosis and what is wrong
Mareks Ballet dancer posture= infiltrates of sciatic nerves Thickened and yellow sciatic nerves
45
what type of virus is chicken infectious anemia
circovirus
46
T or f: chicken infectious anemia is immunosuppressive
true
47
what is pathogenesis for chicken infectious anemia
1. Virus destroys hematopoietic cells and T lymphocytes 2. Pale bone marrow 3. Anemia and immunosuppression 4, secondary bacterial infections
48
what type of virus is duck plague: duck virus enteritis
herpesvirus
49
what are some signs of duck plague: duck virus enteritis
phallus prolapse, necrosis and hemorrhage in viscera and lymphoid tissue, GI luminal hemorrhage, fibrinonecrohemorrgagic plaques on esophagus and intestines
50
what does histo of duck plague/ duck virus enteritis look like
vasculitis, necrosis, lymphoid depletion, intranuclear viral inclusion bodies
51
duck with prolapsed phallus and diphtheria membranes in intestines. Histo showed intranuclear inclusion bodies- what is likely dx
Duck plague: duck virus enteritis
52
from duck- whaat likely cause of these lesions
Duck plague: duck virus enteritis

Pathology II (26 decks)

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