Hamsters Flashcards
2 species of hamsters used in research
- Golden/Syrian hamster
2. Chinese hamster
Scientific name of the Golden/Syrian hamster
Mesocricetus auratus
Scientific name of the Chinese hamster
Cricetulus griseus
The smallest species of hamsters
Dwarf
A long haired Golden/Syrian hamster is aka
teddy bear hamster
Average weight of a Golden hamster
120 g
Average weight of a Chinese hamster
30 g
These type of hamsters are used in research of infx dz, cancer, immunology, and cardiomyopathy
Syrian
These type of hamsters are used in research of diabetes and genetics
Chinese
of chromosomes that hamsters have
22
Hamsters are resistant to rad poisoning so they are considered
radioresistant
Unlike other rodents, hamsters are
solitary animals
Because they are sound sleepers, they should be _______ when handled
awake
Hamsters can run up to 5 miles a day on these
Exercise wheels
Low light, short days, cooler temps, and quietness can induce
hibernation
Hibernation usually lasts for
2-3 days
Average life span
18-24 mos
Normal temp
101-103
Normal pulse
300-500 BPM
Normal RR
35-135 RPM
Normal gestation
15 days
Average litter size
5-9 pups
Housing temp
18-26 degrees celsius
Light:Dark
12:12
Humidity
30-70%
Air exchange
10-15/hr
These are void of glands and appear to be immunologically privileged sites
Cheek pouches
Hamsters have _______ incisors
hypsodontic
Hamsters have a high percentage of this kind of fat
brown fat
Located on their sides
Used to mark territory and involved in mating
Prominent in males
Flank glands
Are males or females larger?
Females
How many pairs of mammary glands do they have?
6-7 pairs
Predominant WBC
Lymphocytes
Common in RBCs
polychromasia
Their urine is _______ because it appears turbid and milky from small crystals
basic
Sexual maturity
6-8 wks
How often do females cycle?
every 4 days
Hamsters are what type of ovulators?
spontaneous
Pups are weaned at
3 weeks
Females will attack males when they aren’t in
estrus
Females don’t have a fertile postpartum
estrus
You should not disturb pups for the first _-__ days to help prevent cannibalism and litter abandonment
7-10
Hamsters need pelleted food that is high in
protein
Hamsters perform this to recycle vitamin B
coprophagy
Most common form of venipuncture
retro-orbital
Because of their aggressiveness, hamsters should be _____ prior to blood draws
anesthetized
Max IP inj
3-4 ml
Max SQ inj
3-4 ml
Max IM inj
0.1 ml
Max IV inj.
0.3 ml
Max PO dose
2.0 ml
Best way to handle a hamster
scruffing
AKA proliferative iletitis
Caused by stress and a bacteria
C/S profuse D+, wt loss, irritability
Young hamsters are prone
Wet Tail
Zoonotic dz where a hamster is usually asymptomatic
Caused by a bacteria and has high incidence
Campylobacteriosis
Rarely seen in hamsters
Salmonella
Usually subclinical signs and has zoonotic potential
Lymphocytic choriomeningitis
Caused by the Pasteurella pneumotropica
Pneumonia
This is caused by certain antibiotics because they alter the normal flora in the gut
Iatrogenic
Antibiotic-Associated enterocolitis
Best antibiotic for pocket pets
Baytril
Enucleation of the eye is suggested for this health condition
Ruptured eye
A result in a low protein diet
Alopecia
4 types of parasites that affect hamsters
- pinworms
- demodex
- tapeworms
- protozoa
2 protozoa that affect hamsters
- giardia
2. trichamonas
Euthanasia method used in research
Overdose of CO2