Pocket Pets 1 Flashcards
How many teeth do rodents have?
A single pair of incisors in each jaw
The following are general characteristics of which lab animal?
Tail = 85% of body length Hypsodontic Forelimbs = 4 digits Hindlimbs = 5 digits Epiphyses do not close and grow continuously Great swimmers
Rats
What type of GI system do rats have?
Hindgut fermenters
What lab animals lack the ability to vomit?
Rats and Rabbits
What organ do rats lack?
Gallblabber
How do you sex rats?
The anogenital distance is less in females than in males
True or False, rats form a copulatory plug
True
Define copulatory plug
Gelatinous secretion used in the mating of some species. It is deposited by the male into the female genital tract.
What is the normal rectal temp of a rat?
96.9-99.7F
What is the normal pulse of a rat?
427-697
What is the normal respiration of a rat?
91-216
What is the average body weight of a rat?
Male: 450-500g
Female: 250-300g
What is the average life span of a rat?
2.5-3.5 years
What is the estrus cycle length in rats?
4-5 days
What is the gestation period in rats?
21-23 days
What is the average litter size in rats?
6-12 rats
What is the weaning age in rats?
21 days
The following are general characteristics of which lab animal?
Males tends to have a strong, offensive odor Forelimbs = 4 digits Hindlimbs = 5 digits Continuously erupting incisors Engage in barbering in group housing
Mice
How do you sex mice?
Using the anogenital distance
Define Bruce Effect
If a pregnant mouse is exposed to the odor or presence of a strange male within 4 days of breeding, the existing pregnancy will often be aborted
What is the normal temp in mice?
96.9-99.7F
What is the normal pulse of mice?
328-780
What is the normal respiration rate of mice?
90-220
What is the average weight of adult mice?
Male: 20-40g
Female: 18-35g
What is the life span of mice?
1-3 years
What is the estrous cycle length in mice?
4-5 days
What is the gestation period in mice?
19-21 days
What is the litter size in mice?
4-12 pups
What is the weaning age in mice?
21 days
How many recognized species of lagomorphs are there?
80
The following are general characteristics of which lab animal?
2nd pair of upper incisors Peg or Wolf teeth Hypsodontic Ears provide thermoregulation Females have dewlap No footpads
Rabbits
Define dewlap
A fold of loose skin hanging from the neck
How do you sex rabbits?
Apply gentle pressure along the genital opening. In females, will expose the mucosal surface of the vulva. In males, will extrude the penis.
Rabbits have _____ cycles?
Induced ovulators
When does ovulation occur in rabbits?
10 hours after coitus
True or False, you can interact with rabbits after parturition.
False, especially with a does 1st litter. Prevents cannibalism of kits
Define artherosclerosis
Plaque build up within the blood vessels caused from a high cholesterol diet
What is the normal temp of rabbits?
101-104F
What is the normal pulse of rabbits?
180-250
What is the normal respiration rate of rabbits?
30-60
What is the average weight of adult rabbits?
Dutch: 1-2kg
NZ: 2-7kg
GF: >7.7kg
What is the life span of rabbits?
5-10 years
What is the estrous cycle length in rabbits?
Seasonal, induced ovulators
What is the gestation period of rabbits?
29-35 days
What is the litter size in rabbits?
4-12
What is the weaning age in rabbits?
5-8 weeks
How do you properly pick up a mouse?
1) Pick up by base of tail
2) Grasp scruff with rubber-tipped forceps or thumb and forefinger
For short period of time
How do you restrain a mouse?
One or two handed methods or restraint devices
Place on a surface they can cling on to
Make sure tail is between pinky finger and palm with two handed method
True or False, you can use a large syringe to restrain a mouse.
True
What are the two important points when using a tube restraint?
1) Nose is in the opening at the front of tube
2) Secure the end of the bag around the mouse’s tail
How do you properly pick up a rat?
By the armpits
True or False, you never pick up a rat by its tail
False, you use it as a last resort and have to make sure to avoid grasping the tip of the tail.
How do you restrain a mouse?
Place on a surface they can cling on to
Grasp the animal behind the elbows or behind mandible to restrain head
True or False, You must beware of the amount of pressure you place on a rat thorax
True, and occlude breathing
True or False, you can adequately scruff a rat to avoid getting bit
False
How do you properly pick up a rabbit?
Grasp the scruff with one hand and support the back end with the other
How do you properly carry a rabbit?
Tuck its head in the crook of your arm while still holding the scruff and back end
What is V-trough and what is it used for?
When you stroke a rabbits abdomen to “hypnotize” them for different procedures
