Diseases of Mice and Rats

Question 1

Flea infestations are a common problem in mice and rats

Answer 1

false

Question 2

rats and mice are primarily nocturnal animals

Answer 2

true

Question 3

fighting is more common in mice than in rats

Answer 3

false

Question 4

which viral disease of mice and rats is zoonotic

Answer 4

Sialodacryoadenitis

Question 5

Which ectoparasites can affect mice and rats?

Answer 5

lice, mites, and fleas

Question 6

It should be recommended to owners to bring their rodents into the vet clinic in what and why?

Answer 6

Their own cage because it allows examination of housing or care-related concerns

Question 7

what 2 problems predispose animals to Tyzzer’s disease?

Answer 7

Poor sanitation and overcrowding

Question 8

What are clinical signs of Tyzzers disease?

Answer 8

diarrhea and anorexia

Question 9

What is the common, chronic bacterial infection that presents the greatest negative impact on scientific studies?

Answer 9

Murine Respiratory Mycoplasmosis

Question 10

What often occurs with infections of murine respiratory mycoplasmosis and affected animals often have a head tilt?

Answer 10

dyspnea

Question 11

Which bacterial infection can colonze in automatic watering systems if they are not flushed properly

Answer 11

Pasterellosis

Question 12

Leptospira is a zoonotic bacterial infection that is spread through infected

Answer 12

urine

Question 13

Bordatella bronchiseptica is a common inhabitant in the respiratory system of what animal?

Answer 13

Rats

Question 14

Rats rarely develop clinical signs of bordatella bronchiseptica, but they act as what?

Answer 14

carriers

Question 15

Pseudotuberculosis is a bacterial disease caused by what?

Answer 15

Corynebacterium Kutscheri

Question 16

what is the most significant viral infection of rats?

Answer 16

Sialodacryoadenitis

Question 17

What is the incubation period for Sialodacryoadenitis and how long should affected animals isolate for?

Answer 17

Incubation period is 2 days and infected animals should isolate for 6-8 weeks.

Question 18

What is the primary causative agent of the viral respiratory disease in mice

Answer 18

Bordatella bronchiseptica

Question 19

mouse hepatitis virus is what kind of common virus that is highly contagious and widespread?

Answer 19

coronavirus

Question 20

Hepatozoon muris and Babesia muris are examples of

Answer 20

blood parasites

Question 21

Spontaneous tumor development in rats and mice can be as high as what percent in animals older than 2 years

Answer 21

87%

Question 22

What tumors are common in random-bred mice

Answer 22

Pulmonary tumors

Question 23

What are the 3 types of neoplasia viruses?

Answer 23

mouse mammary tumor virus, mouse leukemia virus, and mouse sarcoma virus.

Question 24

what virus is common in inbred mice?

Answer 24

neoplasia viruses

Question 25

What is the most common tumor in rats that can occur almost anywhere on the body and are typically benign

Answer 25

mammary fibroadenoma

Question 26

Age related diseases in mice and rats vary widely with the different stocks and strains. What plays a significant role in life span?

Answer 26

environmental factors

Question 27

most commercial rodent feeds are considered quality feed for mice and rats. These products should typically be used when?

Answer 27

6 months of the milling date

Question 28

what disease is prevalent in rodents that are kept in a low humidity environment.

Answer 28

Ringtail

Question 29

How can you prevent ringtail?

Answer 29

housing rats in an evironmental humidity of 50% or greater

Question 30

what can easily occur if mice and rats are given a soft diet and/or not privided with appropriate chew toys?

Answer 30

malocclusion

Question 31

What is the mycotic disease of mice and rats and what are the clinical signs

Answer 31

Trichophyton Mentagrophytes: crusty lesions and alopecia

Question 32

what are the bacterial disease and their causative agents

Answer 32

Tyzzer's disease: clostridium piliforme Murine Respiratory Mycoplasmosis: mycoplasma pulmonic Pasturellosis: Pasturella pneumotropica Streptococcosis: stretococcus pneumoniae Streptobacillosis: Streptobacillus monillformis Leptospira Pseudomonas spp Bordatella bronchiseptica Corynebacterium Kutscheri

Question 33

How are blood parasites typically spread?

Answer 33

bite from a extoparasite

Question 34

what are the 5 major husbandry related diseases that can be found in mice and rats?

Answer 34

staphylococcus aureus, barbering, nutritional disease, ringtail, and malocclusion

Question 35

Most fighting in ratrs occurs at night, if they were to happen where would we see evidence of this?

Answer 35

bite and scratch wounds over the head, perineum, and lumbosacral skin which become infected.

Question 36

What are the characteristic signs of barbering in mice and rats, and how is it treated

Answer 36

Alopecia in absence of pruritis, chewing hair of cagemates. Treated by removing animal with no hair loss

Question 37

why should rats and mice not be fed fresh vegetables

Answer 37

the vegetables could be contaminated with salmonella, yersinia, or bacillus piliformis