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RVT VTS > Rodents > Flashcards

Rodents Flashcards

1
Q

What is the most common zoonotic disease associated with chinchillas?

A

Giardia

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2
Q

What can occur when gerbils, mice, degus and chinchillas are picked up by the tail too caudally?

A

Tail slip

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3
Q

What leukocyte predominates in hystricomorph rodents?

A

Lymphocytes

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4
Q

What signalment of guinea pigs has more Kurloff cells?

A

Pregnant females

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5
Q

For which ECM species have ectoparasites not been reported in captivity?

A

Chinchillas
(Essentially, their fur is so dense that ectoparasites don’t seem to be able to access the skin)

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6
Q

When is the vaginal closure membrane present in healthy chinchillas?

A

At all times except at parturition and during estrus

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7
Q

Which radiographic view allows for assessment of the occlusal plane in guinea pigs?

A

Rostrocaudal

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8
Q

What is the most common dermatophyte isolated from guinea pigs and chinchillas?

A

Trichophyton mentagrophytes

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9
Q

What does barbering look like in mice?
A. Fur loss around the tail base and limbs
B. Fur loss around the face, eyelids, and whiskers
C. Fur loss along the dorsum, between the shoulder blades extending caudally

A

B. Fur loss around the face, eyelids, and whiskers

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10
Q

Who does the barbering in mice?
A. Most dominant animal
B. Most subordinate animal
C. They do it to themselves

A

A. Most dominant animal

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11
Q

How can you tell which mouse is doing the barbering in an enclosure?
A. You can’t - all equally affected
B. Animal with the most fight wounds
C. Animal with all their fur

A

C. Animal with all their fur

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12
Q

Which population of mice is more likely to barber?
A. Group housed males
B. Group housed females
C. Singly housed animals

A

B. Group housed females

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13
Q

Why does barbering happen in mice?
A. Genetic predisposition & stress
B. Cage cleaning/inadequate diet
C. Mites and fungal infections

A

A. Genetic predisposition & stress

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14
Q

What can you do to stop barbering in mice?
A. Remove the perpetrator
B. Treat for mites based on skin scraping
C. Add vitamin A to diet

A

A. Remove the perpetrator

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15
Q

The most traumatic fracture in a chinchilla is:
A) Femur
B) Tibia
C) Humerus

A

B) Tibia

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16
Q

Which species lack a gallbladder?
A ) mouse
B ) rat
C ) prairie dog

A

B ) rat

17
Q

Are degus induced ovulators or spontaneous ovulators?

A

Induced

18
Q

Are degu neonates altricial or precocial?

A

Precocial

19
Q

How long is degu gestation?
A) 105-118 days
B) 59-72 days
C) 87-92 days

A

C) 87-92 days (about 3 months)

A is chinchilla, B is Guinea pigs

20
Q

How long is chinchilla gestation?
A) 105-118 days
B) 59-72 days
C) 87-92 days

A

A) 105-118 days (almost 4 months)

Chinchillas live in a very dry and sparse environment with very low nutrient food sources. It is more energetically efficient for them to have a longer pregnancy and shorter lactation period

21
Q

How long is Guinea pig gestation?
A) 105-118 days
B) 59-72 days
C) 87-92 days

A

B) 59-72 days (about 2 months)

A is chinchilla, C is degu

22
Q

Are Guinea pigs induced ovulators or spontaneous ovulators?

A

Spontaneous

23
Q

Are guinea pig neonates altricial or precocial?

A

Precocial

24
Q

Are chinchilla neonates altricial or precocial?

A

Precocial

25
Q

What is the weaning age of Guinea pigs?
A) 21 days
B) 4 weeks
C) 6-8 weeks

A

A) 21 days

While Guinea pigs are precocial, and can eat solid foods almost immediately, the survival rate of baby Guinea pigs that don’t get their mother’s milk for at least the first week is very low.

26
Q

What is the weaning age of degus?
A) 21 days
B) 4 weeks
C) 6-8 weeks

A

4) weeks

27
Q

What is the weaning age of chinchillas ?
A) 21 days
B) 4 weeks
C) 6-8 weeks

A

C) 6-8 weeks

28
Q

Are rat neonates altricial or precocial?

A

Altricial

29
Q

Are gerbil neonates altricial or precocial?

A

Altricial

30
Q

Are mouse neonates altricial or precocial?

A

Altricial

31
Q

Are black tailed prairie dog neonates altricial or precocial?

A

Altricial

32
Q

Are hamster neonates altricial or precocial?

A

Altricial

33
Q

Are black tailed prairie dogs induced ovulators or spontaneous ovulators?

A

Spontaneous

Black tailed prairie dogs have an unusual reproductive strategy, where all the females in the colony become receptive once a year all on the same day.

RVT VTS (8 decks)

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