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Rabbit parasitic and fungal diseases Flashcards

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1
Q

Etiology of hepatic coccidiosis

A

Eimeria stiedae

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2
Q

clinical signs of hepatic coccidiosis

A

hepatomegaly, icterus, anorexia diarrhea at terminal stages

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3
Q

Epizootiology of hepatic coccidiosis

A

fecal oral transmission younger rabbits more severely affected possible dissemination via lymph or intravascular

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4
Q

Pathology of hepatic coccidiosis

A

hepatomegaly, multifocal yellowish/white spots not he liver biliary exudate, bile duct dilatation

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5
Q

Histopathologic lesions associated with hepatic coccidiosis

A

papillomatous hyperplasia of bile ducts presence of Eimeria at various life stages

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6
Q

Diagnosis of hepatic coccidiosis

A

bilirubinemia leukocytosis, anemia decreased fibrinogen Fecal exam liver microscopy

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7
Q

Etiology of intestinal coccidiosis

A

Eimeria spp.

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8
Q

Clinical signs of intestinal coccidiosis

A

Preweaning rabbits resistant diarrhea, weight loss, decreased growth rate Death due to dehydration

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9
Q

Epizootiology of intestinal coccidiosis

A

fecal oral transmission ingestion of sporocysts

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10
Q

Pathology of intestinal coccidiosis

A

white foci of necrosis on intestinal wall

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11
Q

Diagnosis of intestinal coccidiosis

A

ID of oocytes on fecal PCR

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12
Q

Treatment of coccidiosis

A

sulfaquinoxaline, strict sanitation

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13
Q

Etiology of cryptosporidiosis

A

Cryptosporidium cuniculis

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14
Q

Clinical signs of cryptosporidiosis

A

lethargy, anorexia, diarrhrea

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15
Q

Epizootiology of cryptosporidiosis

A

ingestion of sporulated oocysts shedding of oocysts 7-14 days post infection

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16
Q

Pathology of cryptosporidiosis

A

blunted villi edema of lamina propria dilation of ileal lacteals

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17
Q

Diagnosis of cryptosporidiosis

A

PCR

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18
Q

Treatment of cryptosporidiosis

A

supportive care, sanitation practices

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19
Q

Etiology of encephalitozoonosis

A

Encephalitozoon cuniculi

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20
Q

Clinical signs of encephalitozoonosis

A

CNS signs - convulsions, tremors, torticollis, paresis, coma renal failure

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21
Q

Epizootiology of encephalitozoonosis

A

horizontal transmission infected urine in utero vertical transmission

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22
Q

Pathology of encephalitozoonosis

A

white pinpoint indented spots on renal cortex lymphoplasmacytic infiltrates in the intestinal tissues granulomatous encephalitis

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23
Q

Diagnosis of encephalitozoonosis

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A

ID organism on histopathology - brain and kidney Geimsa, Gram or Goodpasture’s stains Serolgy PCR

24
Q

Differential diagnoses for encephalitozoonosis

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A

splay leg bacterial meningitis (P. multocida) rabbit hemorrhagic disease

25
Etiology of rabbit ear mite
Psoroptes cuniculi
26
Clinical signs of rabbit ear mite
pruritus, tan crusty exudate on inner surfaces of external ear
27
Epizootiology of rabbit ear mite
All stages live on host life cycle 21 days
28
Pathology of rabbit ear mite
chronic inflammation Malpighian layer hypertrophy parakeratosis epithelial sloughing
29
Diagnosis of rabbit ear mite
direct observation skin scrape
30
Species of Cheyletiella
C. parasitovorax C. takahasii C. ochotonae C. johnsoni
31
Clinical signs of cheyletiellosis
hair loss over scapulae grey-white scale NOT pruritic
32
Epizootiology of cheyletiellosis
All stages live on host
33
Pathology of cheyletiellosis
mild dermatitis, hyperkeratosis, inflammatory cell infiltrate
34
Etiology of sarcoptic mange
Sarcoptes scabiei
35
Clinical signs of sarcoptic mange
intense pruritis hair loss, abrasions from scratching
36
Pathology of sarcoptic mange
skin hyperplasia, hyperkeratosis dermal inflammatory response
37
Etiology of dermatophytosis
Trichophyton mentagrophytes Microsporum canis
38
Clinical signs of dermatophytosis
circular alopecia with erythematous margin, and thin desquamation. pruritis absent
39
Epizootiology of dermatophytosis
young rabbits more susceptible contact with other animals and contaminated environment
40
Pathology of dermatophytosis
mild to severe dermatitis
41
Diagnosis of dermatophytosis
Woods lamp fluorescence detection for M. canis skin scraping reveals arthroconidia fungal culture - DTM or Sabouraud dextrose agar
42
Treatment of dermatophytosis
1:10 bleach for environment griseofulvin itraconazole, other azoles
43
Etiology of pneumocystosis
Pneumocystis cuniculi
44
Clinical signs of pneumocystosis
severe interstitial pneumonitis in immunocompromised rabbits
45
Epizootiology of pneumocystis
immunosuppression via corticosteroids or young age
46
Pathology of pneumocystosis
cystic forms present in lungs on toluidine blue, GMS, PAS stains interstitial thickening of alveolar septa increased numbers of type 2 epithelial cells
47
Diagnosis of pneumocystosis
PCR of BAL and other lung washes serology microscopic detection
48
What species?
Taenia psiformis
49
Natural host for this parasite
Racoon Baylisascaris procyonis
50
Most commonly caused by a. Psoroptes cuniculi b. Sarcoptes scabei c. Chyeletiella parasitovorax d. Trichophyton mentagrophytes
c. Chyeletiella parasitovorax
51
Clinical sign of a. Chyeletiella b. Psoroptes c. Sarcoptes d, Notoedres
b. Psoroptes
52
Causative agent
Eimeria stiedae
53
Identification
Chyeletiella parasitovorax
54
Clinical signs
none Passalaru ambiguus usually does not cause clinical signs in rabbits
55
Identification
Passalarus ambiguus
56
Most likely causative agent
Pheumonocystis oryctolagi

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