GHG AP Flashcards
t/f: hamsters have the ability to hibernate, even in a home
true
t/f: urine collection is easier in the gerbil than the hamster
false
t/f: guinea pigs are induced ovulators
false
t/f: hamsters are born with a full set of teeth
true
t/f: guinea pigs have a well developed gallbladder
true
t/f: guinea pigs can be used in both intensive and non-intensive breeding programs
true
gerbils are _____ animals that will mate for life. the male will also help ______
monogamous ; care for young
in the pet industry, guinea pigs are commonly referred to as ____
Cavys
what is the main purpose of brown adipose tissue
temperature regulation
guinea pigs have short, delicate limbs. each foot has ___ digits and each hindlimb has ___ digits
4 ; 3
hamsters have ___ pairs of mammary glands
6-7
when do hamsters reach puberty
6-8 weeks
male guinea pigs are called ___ while female guinea pigs are called ____. the act of parturition is referred to as _____
boars ; sows ; farrowing
how long is the gestation period for hamsters
15-18 days
female guinea pigs reach sexual maturity at ______ of age. if the are going to be used for breeding they should be put into a breeding program prior to _____ of age. after this time their pelvis will fuse closed and if breeding occurs after this point ( for the first time) a life threatening condition called ____ can occur
2 mo ; 6 mo ; dystocia
hamsters have cheek pouches which are located on the ______ and are about _____ long. females may hold ____ in her cheek pouches when threatened
lateral buccal wall ; 35-40 mm ; offspring
hamsters are prone to cavities, which can also be called _____
caries
the usual life span for guinea pigs is ______ in captivity. they have a normal rectal temperature of _______ and their normal heart rate is ______
5-6 years ; 99.0 - 103.1 F ; 240 - 310 BPM
what gives brown adipose tissue its brown appearance
high number of mitochondria
guinea pigs have a gestation period of ____ days and have a typical litter size of ___ pups but they potentially could have up to ___ pups. these pups are typically weaned at ___ of age
69-72 days ; 2-4 ; 13 ; 21 days
guinea pigs are not commonly used as research animals but they can be occasionally used in audiology research because they have large ______
tympanic bulla
which physiological characteristic makes the cheek pouches of hamsters an excellent site to test for carcinogenic potential of agents
lack of immune function
despite the fact that guinea pigs have no _____ and very small ____ they are capable of a wide variety of noises. there are __ distinct vocal patterns of guinea pigs
laryngeal vesicle ; vocal folds ; 11
gerbils should have an environmental temp of ____ F and a relative humidity of ______
65-70 ; 45-55%
are male or female hamsters more aggressive
female
guinea pigs have on ___ in every quadrant. there is a small gap between them and the molars which is called the _____
premolar ; diastema
hamster offspring can begin eating solid food at ____ of age and are weaned by ____
one week ; 21 days
guinea pigs have a rather large tongue which runs continuous with the _____. within the soft palate there is a small hole called the _____ which represents the opening between the oropharynx. this is one of the reasons ____ is difficult in this species
soft palate ; palatal ostium ; endotracheal intubation
gerbils have ___ pairs of mammary glands
4
guinea pigs have a unique anatomy of their stomach in relation to other rodents as they are lacking a ____ portion
nonglandular
the cecum of guinea pigs is a ____ thin walled sac that takes up most of the __ and ___ portions of the abdomen
large ; central ; left
the liver of guinea pigs is divided into __ lobes
6
the ____ (or flank) glands are used to _____ and for ____
costovertebral ;mark territory ; mating
gerbils are native to the harsh ___ regions, where hamsters come from ___ regions
desert ; semiarid
hamsters ____ suffer from spontaneous disease
rarely
just like mice and rats, guinea pigs have a —- uterus, with each uterine horn having its own ____
bicornuate ; cervix
how many pairs of mammary glands do guinea pigs have
one
the left lobe of hamsters has ___ lobe while the right lung has ___ lobes
one ; five
which tooth type is rooted in hamsters
molars
the life span for gerbils is ____ and ___ for hamsters
24-39 mo ; 18 - 36mo
the hardian gland of hamsters is located ______
behind the eyeball
how long is the estrus cycle of female hamsters
4 days
guinea pigs can be occasionally used for nutritional studies as they have a dietary need for ____, just like primates do
vitamin C
we can confirm mating in guinea pigs by the presence of a ______
copulatory plug
which guinea pig breed is most commonly used in research medicine
english
the gestational length for gerbils is ____ days and offspring are weaned by
23-26 days ; 21-28 days
you must ensure that a new litter of hamsters is not disturbed for 1 week after birth because the female may become _____
cannibalistic
the ___ limbs of gerbils are longer which allow them to jump fairly high
hind
___ consume very little water
gerbils
what is lordosis
behavior exhibited during estrus ; arching back and swaying the hindquarters
guinea pig offspring are precocious. what does this mean
born fully haired, eyes opened, able to eat solid food within hours after birth
