Card Set Information
mouse rat guinie pig gerbal hamster
Lab animal mid-term. Rodents and organizations
Inbred are called ______ and outbred are called_______.
strains and stocks
Scientific name for the mouse
common strains on mice and colors
Balb/c (albino), C3H (dark brown with yellow bands), C57BL/6 (black), and DBA the oldest inbred strain (brown)
What is transgenic
Animals that have genetic material from another animal introduced into the fertilized egg
What is a knockout?
Animal that has had genetic material removed or blocked
What is a nude?
Animal that has a naturally occurring genetic defect, hairless, have a deficiency in the immune system, No T3 cells so they have ½ the immune system, SCID= severe combined immune deficiency
severe combined immune deficiency
Mouse temp, weight, and life span
96-99, 20-40g (newborns about 1g), and 1-3 yrs
What is the word that mean poop eater?
What are 2 ways of determining sex in rodents?
anogenital distance and males not not have nipples, only females
Estrus every ___days in mice
Mice have a postpartum estrus within __ of parturition
Gestation in mice
Int the new borns what is the white spot you can usually see and is that a good thing or nad?
Milk spot: good
Hair and eyes in mice
Usually 10-14 days; hair then eyes
The big baby days in mice: gestation, weaning, puberty, and breeding age
19-21 days, 21 days, 4-6 weeks, and 6 weeks
Dominant mouse chews or bites hair off of another mouse, usually in the facial region. Usually harmless, may need to separate if severe
What does hypsodontic mean?
constantly growing teeth
common stocks in rats
Wistar, Sprague-Dawley, Long-Evans
common strains in rats
Fisher 344 and Lewis