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Exotic and Laboratory Animals > Gerbils > Flashcards

Gerbils Flashcards

1
Q

What is the genus and species of gerbils?

A

Meriones unguiculatus

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2
Q

What is the average life span of gerbils?

A

24-39 months

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3
Q

What is the length of the estrus cycle in gerbils?

A

4-7 days

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4
Q

What is the length of gestation in gerbils?

A

23-26 days

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5
Q

What is the average litter size in gerbils?

A

3-8

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6
Q

What is the average weaning age in gerbils?

A

21-28 days

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7
Q

What do gerbils consume very little of?

A

Water

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8
Q

Where do they get their water from?

A

Food

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9
Q

What do gerbils have on their abdomen?

A

Prominent sebaceous glands

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10
Q

What research studies are gerbils used in?

A

Endocrine function studies
Lipid metabolism studies
Stroke studies
Radiobiologic studies

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11
Q

Why are gerbils used in Endocrine function studies?

A

Due to their low water requirement

Highly concentrated urine

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12
Q

Why are gerbils used in lipid metabolism studies?

A

Because they develop high serum and hepatic cholesterol levels even on a low fat diet

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13
Q

Why are gerbils used in Radiobiologic studies?

A

Because they are radiation resistant

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14
Q

Are describes the gerbils estrous cycle?

A

Polyestrous

Spontaneous ovulators

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15
Q

Are gerbils monogamous?

A

Yes. Males assist in caring for young

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16
Q

Are gerbils nocturnal?

A

No

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17
Q

What temperature is best for gerbils?

A

65-75 F

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18
Q

What is the best humidity for gerbils?

A

50 to 60%

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19
Q

Why should you avoid extreme temperatures in gerbils?

A

Because they can induce seizures

20
Q

Where are subcutaneous injections usually given?

A

Under the loose skin over the shoulder area

21
Q

What is the maximum volume you can give a gerbil SQ?

A

3 to 4 mls with a 21 g needle

22
Q

Where must IM injections be given?

A

Quadriceps or gluteal muscles

23
Q

Where can IV injections be given in a gerbil?

A

Cephalic
Lateral metatarsal
Jugular

24
Q

Is fasting a gerbil required before anesthesia?

A

No because their small size and high metabolism predispose them to hypoglycemia and hypothermia when fasted

25
Q

What is required for blood collection?

A

Anesthesia

26
Q

What other sites can blood be taken from in a gerbil?

A

Retroorbital sinus

Cardiocentesis

27
Q

What bacterial diseases are gerbils prone to?

A

Tyzzer’s disease

Salmonella

28
Q

What viral diseases are gerbils prone to?

A

Lymphocytic Choriomeningitis

29
Q

What cestode of gerbils is of zoonotic concern?

A

Rodentolepis

30
Q

What other parasites can gerbils be infected with?

A 
Syphacia oblvelata (mouse pinworm)
Syphacia muris (rat pinworm)
31
Q

What infections have been reported in gerbils older than 18 months?

A

Demodex criceti

Demodex aurati

32
Q

What are the clinical signs of demodex infections?

A

Alopexia over the rump, back and neck

33
Q

What is the treatment of demodex infections?

A

Topical acaricides

34
Q

What is the most common benign neoplasia in gerbils?

A

Gastrointestinal polyps & adenomas of the adrenal cortex

35
Q

What are the malignant tumors found in gerbils?

A

Lymphosarcoma

Gastrointestinal or adrenal carcinoma

35
Q

What are the malignant tumors found in gerbils?

A

Lymphosarcoma

Gastrointestinal or adrenal carcinoma

36
Q

What do older gerbils develop?

A

Chronic interstitial nephritis

37
Q

What is commonly seen in older females

A

Cystic ovaries

38
Q

What is indicative of barbering?

A

The absence of pruritis or evidence of alopecia

39
Q

What is a common condition of juvenile gerbils?

A

Nasal dermatitis

40
Q

What is Nasal dermatitis also known as?

A

Red nose
Sore nose
Stress-induced chromodacryorrhea

41
Q

What is a nasal dermatitis infection associated with?

A 
Staphylococcus 
Stress factors (loss of cagemate, incompatible mate, overcrowding)
42
Q

What are the clinical signs of Nasal Dermatitis?

A

Nasal dermatitis

Alopecia around the upper lip and external nares

43
Q

What is the treatment of Nasal Dermatitis?

A

Topicals

Mechanisms to reduce stress

44
Q

Gerbils are social animals but can become aggressive when:

A

Overcrowded

45
Q

Gerbil cages should have a securely fitting lid because gerbils:

A

Can jump fairly high

46
Q

Gerbils are native to:

A

The harsh desert regions of the Mongolia, southern Siberia, and northern China

Exotic and Laboratory Animals (22 decks)

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