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NAVLE > Poultry > Flashcards

Poultry Flashcards

1
Q

What is far top differential in a chick sharing signs of respiratory disease and has cream colored plaques throughout the lungs on necropsy

A

Aspergillosis infection - brooder pneumonia, mycotic pneumonia or pneumomycosis

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2
Q

How do you treat aspergillosis infections

A

Cull affected birds and disinfect facilities - no useful treatment

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3
Q

What is histamonous melegridisa

A

A protozoan parasite (blackhead or infectious enterohepatitis) - causes extensive necrosis of the liver and the team

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4
Q

What can you not use to treat coccidiosis in Turkeys

A

salinimycin - a coccidiostat that is toxic to turkeys at low doses

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5
Q

How do you treat coccidiosis in Turkeys

A

Amprolium or sulfonamides

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6
Q

What clinical signs do you expect to see in coccidiosis in turkeys

A

Depressed mention, ruffled feathers, mucous blood stained diarrhea

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7
Q

What is round heart disease in Turkeys

A

Spontaneous cardiomyopathy in young turkeys less than a weeks

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8
Q

What clinical signs might you see in round heart disease in turkeys (or on necropsy)

A

Respiratory distress then sudden death, ruffled feathers /unkempt look) enlarged heart and ventricles, congested lungs , enlarged liver, ascites or CHF

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9
Q

What would you expect to see with children’s and turkeys affected by reticuloendotheliosis

A

Runting ( weight loss, paleness, paralysis), acute neoplasia, b and t cell lymphoma

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10
Q

A deficiency in what would lead to clinical signs like stunting, poor feathering, short thick bowed legs and chondrodysplasia (why is this important)

A

Choline deficiency - helps mobilize accumulated abdominal fat and prevents fatty liver syndrome

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11
Q

What are other names for Avian fowl pox and what are the two forms

A

Sore head or avian diphtheria - dry form and wet form

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12
Q

How is avian pox spread through flocks

A

Slow spread by contact or mosquitos

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13
Q

Describe the dry form of avian pox - signs, prognosis

A

Raised white wart like lesions on unfettered areas (head, leg, vent), causes unthriftiness, decreased egg production and retarded growth, low mortality and lesions heal in 2 weeks

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14
Q

Describe the wet form of avian pox

A

Involves oral cavity and upper respiratory tract, diptheritic lesions that an ulcerate or erode mucous membranes - can lead to mortality if severe

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15
Q

What are diptheretic lesions

A

Ulcerative , vesicles, covered by a pseudo membrane, skin sores

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16
Q

How do you treat Avian pox

A

A pox virus so no effective treatment - best to prevent with vaccines

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17
Q

Describe the vaccine for avian pox

A

One vaccine leads to permanent immunity

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18
Q

What is the causative agent of fowl cholera

A

Pastarella multocida - gram negative non motile rod

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19
Q

Sudden onset of coughing that is widespread and causing some abortions leads you to suspect which disease

A

Swine influenza

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20
Q

What sort of sample will you need to diagnose swine influenza

A

Nasal swab - swine influenza causes systemic disease through a high fever (not spread through blood)

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21
Q

What is the classic presentation of egg drop syndrome

A

Poor eggshell quality and healthy birds

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22
Q

What is the classic presentation of egg drop syndrome

A

Poor eggshell quality and healthy birds

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23
Q

What avers are affected by the wet pox form

A

Upper respiratory tract - lesions in mouth and throat

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24
Q

What diseases process leads to bollinger bodies

A

Pox viruses - wet or dry form

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25
Q

E.coli in a broiler flock can lead to what triad of lesions - how is it spread

A

Fibrin’s pericarditis, perihopatitis, air sacculitis - bacteria access bloodstream through respiratory tract or intestines

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26
Q

E.coli in a broiler flock can lead to what triad of lesions - how is it spread

A

Fibrin’s pericarditis, perihopatitis, air sacculitis - bacteria access bloodstream through respiratory tract or intestines

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27
Q

What clinical signs would you see with malabsorption syndrome in chicks

A

Stunted growth, poor feathering (broken or twisted feathers), orange feces or intestinal contents

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28
Q

What clinical signs would you see with malabsorption syndrome in chicks

A

Stunted growth, poor feathering (broken or twisted feathers), orange feces or intestinal contents

29
Q

What is a differential for pale, wrinkled eggs

A

Infectious bronchitis virus - respiratory disease causing sneezing , conjunctivitis, facial swelling and weird eggs

30
Q

What is a differential for pale, wrinkled eggs

A

Infectious bronchitis virus - respiratory disease causing sneezing , conjunctivitis, facial swelling and weird eggs

31
Q

What is considered the scaly leg mite in birds and poultry

A

Knemidoctopes mutans

32
Q

Lymphoma in chickens on be caused by - or-

A

Mareks disease and lymphoid leukosis virus

33
Q

What is dermanyssus gallinae and what does it cause

A

Poultry red mite causing anemia

34
Q

What clinical signs are you likely to see with bordetella avium

A

Information of sinuses , clear nasal discharge, coughing, changes in vocalization, difficulty breathing, exudate on skin and around eyes

35
Q

Which species are more likely infected with bordetella avium

A

Turkeys and poults

36
Q

What is the most common source of infection of bordetella avium on multi age farms

A

Recovered carriers in older flocks

37
Q

What is Turkey coryza

A

Bordetella avium, or turkey bordetellosis

38
Q

What is an important thing to tell workers going between turkey flocks on the farm and why

A

Never go from older flocks to young flocks to prevent spread of bordetella avium

39
Q

Describe infection with mycoplasma gallisepticum (mg)

A

Chronic disease, nasal exudate, coughing and debilitation

40
Q

What is the causative agent of infectious sinusitis in turkeys and also the chronic respiratory disease of chickens

A

Mycoplasma gallisepticum

41
Q

Describe mycoplasma gallisepticum on a culture

A

Round fried egg colonies and the ability to agglutinate erythrocytes

42
Q

How is mycoplasma gallisepticum transmitted / how does it cause disease

A

Transovarian, horizontally through aerosols, or as a normal inhabitant of the upper respiratory tract

43
Q

You see a turkey with swollen sinuses - what is your top differential

A

Mycoplasma gallisepticum

44
Q

How do you diagnose chronic respiratory disease of chickens

A

PCR

45
Q

When do 4a vaccinate turkeys for infectious sinusitis (mg) infection

A

Never - vaccine will kill turkeys - only give to chickens

46
Q

What is the causative agent of infectious coryza in chickens

A

Avibacterium / haemophilus paragallinarum

47
Q

Describe infectious coryza in chickens - who does it primarily affect and who does it not affect

A

Rapid spreading debilitating upper respiratory infection in laying hens - does not affect turkeys

48
Q

What are Classic clinical signs of infectious coryza in chickens

A

Reduced egg production, reduced feed consumption, oculonasal discharge, edema of face and eyelids

49
Q

What are Classic clinical signs of infectious coryza in chickens

A

Reduced egg production, reduced feed consumption, oculonasal discharge, edema of face and eyelids

50
Q

What is the main source of infection for infections coryza (h. Paragallinarum)

A

Chronically sick birds and subclinical carrier birds

51
Q

You see a chicken with swollen eyelids and edema in the face - what is the top differential

A

Avibacterium paragallinarium

52
Q

What is pathopneumonic for histomoniasis / blackhead

A

Cecal and liver lesions together

53
Q

What happens with histiomoniasis infection

A

Leads to marked inflammation and elections leading to thickening of the cecal wall

54
Q

What do gram positive pleomorphic rods found in the liver indicate

A

Erysipelis

55
Q

What is amprolium used for

A

Treat coccidiosis

56
Q

What is Candida albicans where is it normally found

A

Fungus normally found in the digestive tract of poultry-chicks specifically

57
Q

Can chickens and turkeys develop West Nile virus

A

No evidence they develop clinical disease

58
Q

What do you do if you suspect fowl plaque

A

Contact state - economies risk because it is an avian influenza that readily mutates

59
Q

An enlarged vagus and sciatic nerve on necropsy indicates

A

Mareks disease

60
Q

An enlarged vagus and sciatic nerve on necropsy indicates

A

Mareks disease

61
Q

What is the causative agent of fowl plaque

A

Avian influenza virus

62
Q

You see cyanosis and edema of head/comb/wattle on chickens - what is your top differential and what do you do

A

Fowl plaque/avian influenza - report due to mutation concerns

63
Q

What type of virus is Newcastle disease

A

Paramyxovirus - hemagluttinating virus

64
Q

Is Newcastle disease zoonotic

A

Yes - can cause conjunctivitis

65
Q

What causes infectious coryza and how does it present

A

Haemophilus paragallinarum - respiratory disease and swelling under the eyes in older chickens

66
Q

What causes fowl cholera and how dues it present

A

Pasteurella multocida - mucous discharge from mouth, white diarrhea, petechiae, pericardial fluid

67
Q

How do you treat clostridium perfringers causing necrotic enteritis

A

Penicillin in drinking water

68
Q

What is the withdrawal time for amprolium

A

No withdrawal time

NAVLE (18 decks)

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