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Meriones gestation length
- 24-26 d nonlactating
- 24-48 lactating
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cow gestation pen space
10 x 10
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Ewe gestation pen space
14 sq ft
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what position is most humane to handle gerbils in?
upright, not on back
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What species can you take up to 25% of the blood volume?
sheep- ovis aries
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This species has larger adrenal glands than any other rodents
meriones unguiculatus
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The fat tailed Gerbil (jird) scientific name
Pacyuromys dupasi
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The only known animal to mimic human disease of aural cholesteatomas
Meriones unguiculatus
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What species has strong pair bonding
Meriones, not Pacyuromys
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Spermophilus gestation period
23-31 days
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Spermophilus richardsonii estrous cycle type
monoestrous
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Spermophilus use in research
hibernation, hepatitis B, cholesterol fed gallstone formation, and hepatocell carcinoma
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Cynomys use in research
biliary physiology, gallstone formation
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Cynomys estrous cycle
monestrous and do not start breeding until 2 years
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Gestation of Cynomys
34-37 days
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Geomys and Theomys use in research
molecular evolution
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Dipodomys spectabilis and merriami breed when
throughout the year, seasonally plyestrous
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Gestation length in Dipodomys
29-33 days
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Which other rodent is difficult to breed because of their aggressiveness towards one another
Dipodomys spp.
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Gestation for Neotoma
30-40 days
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Which other rodent has long or all year breeding cycles and small litters?
Neotoma or wood rat
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Neotoma spp use in research
behavioral, neuro studies, source of zoonotic microorganisms
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Gestation length of Onychomys
26-37 days
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How many litters per year can Onychomys have?
12
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Onychomys use in research
highly aggressive nature warrants use in reproduction and behavior
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Peromyscus maniculatus and leucopus use in resarch
- genetics, physiology, aging, cataracts, and behavior
- zoonotic disease- hantavirus, Lyme, vsv, erlichiosis, babesiosi, trypanomiasis and tularemia
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Name an other rodent that breeds year round in lab
- Peromyscus leucopus and maniculatus
- Also Dipodomys
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Oryzomys prefer this environmental enrichment to reduce stress
Hollow brick as shelter
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Which other rodent is the predominan reservoir host for Bayou virus ( cause of Hantavirus pulmonary syndrome)
Oryzomys palustris
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Which other rodent lacs a reproductive response to photperiod and is thus a good model for circannual reporductive cycles?
Cane Mice
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Xygodotomys brevicauda is a natural host for which virus
Guanarito Virus ( Venezuelan Hemorrhagic Fever)
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In Zygondotomys brevicauda how long is the gestation length, and when is weaning?
- Gestation: 25 days
- day 16 weaning
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Gestation in Sigmodon Hispidus/ Fluviventer?
Weaning age?
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Mystromys are actually in the same subfamily as which rodent
Hamsters- Cricetinae
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While being a great model for diabetes mellitus, the white tailed rat is also a great model for what disease?
American cutaneous leishmaniasis- Leishmania braziliensis
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The mystormys albicaudatus has an interesting repro behavior:
Gestation period?
Newborns stay attached for how long?
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Microtus are predisposed to what with handling and environmnetal stress?
- tonic-clonic seizures and head shaking
- Good model for epileptiform seizures
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Microtus use in research
- Physiology of vomeronasal organ in chemosensory cues
- seizures
- spatial learning
- nutirion studies
- African trypanosamyasis
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This other rodent has such a high metabolic rate that it becomes hypoglycemic within 6 hours
Microtus penssylvanicus
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Microtus have what type of repro cycle?
polyestrous induced ovulators
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Mastomys use in resarch
zoonotic disease, Yersenia pestis, parasitic disese, Zollinger Ellison syndrome
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Mastomys do not have this anatomical structure
gall bladder
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Both males and females of this other rodent species have a prostate gland
Mastomys
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Gestation period of multimammate rat
23 days , weaing at 19-21, monogamous pairs
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Octodon Degu use in research
human sleep/wake patern due to their diurnal behaviro
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Degus repro cycle
Gestation period
- breed year round
- Gestion 90 days
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How often do Octodon and Chinchillas dust bathe
twice a week
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Chinchillas estrous cycle length and type
Gestaion lenth
- seasonally polyestrous
- 38 days with a vaginal closure membrane- estrous cycle
- Gestation 110.8 days
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The optimal temperature for a chinchilla
20+/- 2 degree C (not heat tolerant just like ferret)
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