Hamsters (LS)

Question 1

Which hamster has the lowest number of chromosomes of any mammal & is used to research cytogenetics?

(2N=22)

Answer 1

Chinese Hamster

Question 2

What can seeds cause in hamsters?

Answer 2

Osteoporosis

Question 3

Toe arrangement of Hamsters?

Answer 3

• Forelimb → 5
• Hindlimb→ 3

Question 4

What percentage of RBC will be decreased by castration in hamsters?

Answer 4

25-30%

Question 5

What is not a dz. of the immunocompetent hamster?

TQ

Answer 5

Tyzzer’s Dz.

(in immunocompromised only)

Question 6

Lesions of Tyzzer’s Dz?

Answer 6

• Milk spots on the liver
• poor hair coat
• depression
• diarrhea
• death w/o signs

Question 7

What is a very common dz. of hamsters?

TQ

Answer 7

Wet tail /Lawsonia intracellularis

(diarrhea)

Question 8

Sequella of Wet Tail?

Answer 8

• obstruction
• intessusception
• rectal prolapse

Question 9

Which Antibiotics can cause Dysbiosis in Hamsters?

(LOTS)

Answer 9

ins, illins & sins

Question 10

TX for Dysbiosis in Hamsters?

Answer 10

Metronidazole

Question 11

What agent carried by hamsters can be a zoonotic potential for children?

TQ

Answer 11

Bordetella bronchiseptica

Question 12

4 Nutritional Dzs of Hamsters?

Answer 12

• Nutrional 2° Hyperparathyroidism
• Osteoporosis
• Bladder Stones
• Molar Carries → w/ candy

Question 13

What is the most common cause of death in aged hamsters & has no TX?

TQ

Answer 13

Amyloidosis

Question 14

Which RARE virus of YOUNG hamsters is zoonotic and can cause meningitis in children?

TQ

Answer 14

Lymphocytic choriomeningitis virus

(Arenavirus)

Question 15

What should you tell the owner to do if you DX Lymphocytic choriomeningitis virus?

TQ

Answer 15

Throw away the deceased hamster’s enclosure

(“Tough nut” makes the virus highly resistant to disinfectants)

Question 16

5 C.S. of Hamster Parvovirus

(2-4 wks)

Answer 16

• Dome shaped crania
• Potbelly
• Testicular atrophy
• Incisor discoloration, malformation & loss
• Decreased litter size → if a breeding female

Question 17

What species of Pinworms do Hamsters get?

Answer 17

Syphacia mesocriceti

Question 18

What species is zoonotic, infects hamsters & is called “dwarf tapeworm”?

When will you see C.S?

Answer 18

Hymenolepis nana

only when there is a heavy, heavy parastitic load

Question 19

Tx of Hymenolepis nana?

Answer 19

Praziquantel

Question 20

4 most common tumors in aged hamsters (> 2 yrs)?

Answer 20

1. Endocrine
2. Lymphoreticular
3. Dermatologic
4. Gastrointestinal

Question 21

Which rodent get’s Cushing’s Dz?

Answer 21

Hamsters

Question 22

What are the different forms of Lymphoma in adult & young hamsters?

Answer 22

• Adult → multicentric, cutaneous
• Young → epizootic

Question 23

Are ovarian tumors in hamsters benign or malignant?

Answer 23

Benign

Question 24

Uterine adenocarcinoma is common in

what species of hamster > 100 wks old (~2 yrs)?

(rare in others)

Answer 24

Chinese hamster

Question 25

What is the most common skin tumor of hamsters?

Answer 25

Melanoma

Question 26

Susceptibility of Dysbiosis in Gerbils vs. Hamsters?

Answer 26

Hamsters>>gerbils

Question 27

How do you TX a Cheek Pouch Eversion?

Answer 27

Cheek pouch pexy!

(Don’t withhold food & leave sutures in for 10-14 d)