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ACLAM > Hamsters and Gerbils > Flashcards

Hamsters and Gerbils Flashcards

1
Q

Genus and species of Golden Syrian Hamster

A

Mesocricetus auratus

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2
Q

Genus and species of Chinese hamsters

A

Cricetulus griseus

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3
Q

Genus and species of Mongolian gerbils

A

Meriones unguiculatus

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4
Q

Models of research that use gerbils

A

seizure and epilepsy research.
Seizures are genetic

Nutritional studies: susceptible to high-fat, high-cholesterol diets

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5
Q

Incisor teeth in hamsters and gerbils are hypsodont and elodont, what are the cheek teeth?

A

brachydont

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6
Q

Syrian hamsters produce an off-white, vaginal discharge during estrus (just after ovulation). T or F

A

True

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7
Q

Protein requirements of hamsters and gerbils

A

Hamsters (14-17%), Gerbils (22%)

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8
Q

“Wet-tail” in hamsters is commonly caused by what bacteria?

A

Lawsonia Intracellularis

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9
Q

Common treatment for “wet-tail”?

A

Tetracycline, enrofloxacin, trimethoprim-sulfa

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10
Q

Diarrhea in adult hamsters is commonly caused by what bacteria?

A

Clostridium difficile.
Post antibiotic therapy.
Guarded prognosis

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11
Q

Tyzzers dz is caused by what bacteria?

A

Clostridium piliformes, in pet store animals

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12
Q

Tyzzers causes a high mortality in rats and mice. T or F

A

False, Hamsters and gerbils

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13
Q

Name a zoonotic intestinal parasite of hamsters.

A

Hymenolepis nana

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14
Q

What condition is seen in research hamsters exposed to social stress induced by overcrowding?

A

Amyloidosis

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15
Q

Primary composition of urinary crystals in hamsters

A

Struvite

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16
Q

What is the pH of normal hamster urine?

A

8

17
Q

What type of hamster is prone to mammary adenocarcinoma?

A

Djungarian hamsters

18
Q

What environmental conditions trigger cannibalism of the young?

A

cold ambient temperatures (<50F), lean diets, low body weights (especially during pregnancy)

19
Q

What type of hamster is more prone to cardiac disease?

A

Syrian

20
Q

What type of hamster is more prone to respiratory disease?

A

Djungarian

21
Q

What condition occurs in aging research hamsters (up to 73%)?

A

Atrial thrombosis (left side) with secondary heart failure and consumptive coagulopathy. Occurs in younger age female (13.5 mos) than males (21.5 mos)

22
Q

What influences the incidence of atrial thrombosis?

A

The amount of circulating androgen (endocrine). Castrating males increases incidence.

23
Q

What influences the length of hair in a teddy bear Syrian hamster?

A

Testosterone

24
Q

Djungarian hamsters are 5x more likely to develop neoplasias than Syrian hamsters. T or F

A

True

25
Q

Common fur mite in hamsters

A

Acarus farris

26
Q

Most common neoplasm of hamsters

A

Lymphoma (cutaneous is frequent and resembles human epitheliotropic T-cell lymphoma)

27
Q

Hamsters are sensitive to radiation. T or F.

A

False. Hamsters are most radioresistant of lab animals.

28
Q

Most common cause of fatal infection in gerbils

A

Tyzzer’s dz caused by Bacillus piliformis (diarrhea)

29
Q

Gerbil pinworm

A

Denstomella translucida

30
Q

The lack of what enzyme causes reflex stereotypic epileptiform (clonic-tonic) seizures in gerbils (genetic)?

A

Cerebral glutamine synthetase. Starts ~2mos of age and most animals outgrow

31
Q

What bacteria causes neurologic signs in gerbils?

A

Bacillus piliformis

32
Q

Cystic ovaries occur in what type of laboratory gerbil?

A

Mongolian gerbil. Remove it.

33
Q

What two zoonotic diseases are children at risk for when keeping hamsters or gerbils as pets?

A

lymphocytic choriomeningitis virus and hantavirus

34
Q

What type of retina does a hamster have?

A

Holangiotic- entire neurosensory receives blood supply that radiates out like spokes.

35
Q

The use of what antibiotic in hamsters will cause reduced tear production for 14 days?

A

Trimethoprim sulfa

36
Q

Hamsters (and mice) are not susceptible to what gram negative rod that afflicts rabbits and other rodents?

A

Bordetella bronchiseptica

ACLAM (12 decks)

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