Scientific Names:
Gestation:
Litter size/# of young:
Begins eating solid feed:
Age at weaning:
Common Breeds:
Female: Hen
Female (adult) weight:
Female puberty age:
Female optimum reproductive age:
Male: Cock
Male (adult) weight:
Male puberty age:
Male optimum reproductive age:
Newborns: Chick, Hatchling
Sexual Cycle Type:
Sexual Cycle Duration:
Estrus Duration:
Postpartum Estrus:
,Normal body temperature:
Heart rate (beats/min):
Respiration rate (breaths/min):
Life span (years):
Give this one a try later!
Birds: Galliformes🐓🦃
Research: nutrition, studies of the middle & inner ear.
Give this one a try later!
Chinchillas
Scientific Names: Rattus norvegicus
Gestation: 21-23 days
Litter size/# of young: 8-14
Begins eating solid feed: 14 days
Age at weaning: 20-21 days
Common Breeds:
- Wistar: albino, wide head, long ears, short tail (1/2 the length of its
body)
- Sprague-Dawley: albino, but grows faster than Wistar. Longer,
narrower body, w/ tail length equal to body length.
- Long-Evans: smaller than the previous two. Known as the hooded rat.
Color is white w/ patches of black or brown.
- Fischer 344: used for toxicology research & to study birth defects
(teratology)
,- Lewis: used for immunological studies & diabetes research
Female: doe
Female (adult) weight: 250-300g
Female puberty age: 40-49 days
Female optimum reproductive age: 2-9 months
Male: buck
Male (adult) weight: 300-500g
Male puberty age: 40-60 days
Male optimum reproductive age: 2.5-10 months
Newborns: pups
Sexual Cycle Type: Polyestrous, nonseasonal
Sexual Cycle Duration: 4-5 days
Estrus Duration: 12 hours
Postpartum Estrus: Fertile
Normal body temperature: 35.9-37.5 C (96.6-99.5 F)
Heart rate (beats/min): 250-400
Respiration rate (breaths/min): 70-115
Life span (years): 2.5-3
Rats CANNOT vomit. Rats do NOT have a gallbladder.
Porphyrin: in tears & saliva
Anogenital distance: 2x as great in males compared to females
Toe clipping may be used w/ IACUC approval on neonates only when
no other ID methods are possible or practical for research.
Rats are nocturnal.
Fighting & barbering are much less common in rats relative to mice.
Rats respond positively to gentle handling, & are easier to work w/ &
less prone to biting. Rats don't make large nests like mice, but like to
hide in shelters & gnaw.
Euthanasia: CO2 asphyxiation, overdose of anesthetic gas, inject an
overdose of barbiturate (pentobarbital).
, Euthanasia Physical Methods: Cervical dislocation is limited to rats
<200 grams, decapitation
Research: nutrition, behavior, naturally occurring (diabetes, high blood
pressure)
Give this one a try later!
Rats🐀
Research: Hepatitis B and C, emesis, hepatocellular carcinoma,
myopia
Give this one a try later!
Shrews
Scientific Names: Reptilia
The Reptilia class includes tortoises, turtles, crocodiles, alligators,
snakes, & lizards.
Gestation:
Litter size/# of young:
Begins eating solid feed:
Age at weaning:
Common Breeds:
Female:
Female (adult) weight:
Female puberty age:
Female optimum reproductive age:
Male:
Gestation:
Litter size/# of young:
Begins eating solid feed:
Age at weaning:
Common Breeds:
Female: Hen
Female (adult) weight:
Female puberty age:
Female optimum reproductive age:
Male: Cock
Male (adult) weight:
Male puberty age:
Male optimum reproductive age:
Newborns: Chick, Hatchling
Sexual Cycle Type:
Sexual Cycle Duration:
Estrus Duration:
Postpartum Estrus:
,Normal body temperature:
Heart rate (beats/min):
Respiration rate (breaths/min):
Life span (years):
Give this one a try later!
Birds: Galliformes🐓🦃
Research: nutrition, studies of the middle & inner ear.
Give this one a try later!
Chinchillas
Scientific Names: Rattus norvegicus
Gestation: 21-23 days
Litter size/# of young: 8-14
Begins eating solid feed: 14 days
Age at weaning: 20-21 days
Common Breeds:
- Wistar: albino, wide head, long ears, short tail (1/2 the length of its
body)
- Sprague-Dawley: albino, but grows faster than Wistar. Longer,
narrower body, w/ tail length equal to body length.
- Long-Evans: smaller than the previous two. Known as the hooded rat.
Color is white w/ patches of black or brown.
- Fischer 344: used for toxicology research & to study birth defects
(teratology)
,- Lewis: used for immunological studies & diabetes research
Female: doe
Female (adult) weight: 250-300g
Female puberty age: 40-49 days
Female optimum reproductive age: 2-9 months
Male: buck
Male (adult) weight: 300-500g
Male puberty age: 40-60 days
Male optimum reproductive age: 2.5-10 months
Newborns: pups
Sexual Cycle Type: Polyestrous, nonseasonal
Sexual Cycle Duration: 4-5 days
Estrus Duration: 12 hours
Postpartum Estrus: Fertile
Normal body temperature: 35.9-37.5 C (96.6-99.5 F)
Heart rate (beats/min): 250-400
Respiration rate (breaths/min): 70-115
Life span (years): 2.5-3
Rats CANNOT vomit. Rats do NOT have a gallbladder.
Porphyrin: in tears & saliva
Anogenital distance: 2x as great in males compared to females
Toe clipping may be used w/ IACUC approval on neonates only when
no other ID methods are possible or practical for research.
Rats are nocturnal.
Fighting & barbering are much less common in rats relative to mice.
Rats respond positively to gentle handling, & are easier to work w/ &
less prone to biting. Rats don't make large nests like mice, but like to
hide in shelters & gnaw.
Euthanasia: CO2 asphyxiation, overdose of anesthetic gas, inject an
overdose of barbiturate (pentobarbital).
, Euthanasia Physical Methods: Cervical dislocation is limited to rats
<200 grams, decapitation
Research: nutrition, behavior, naturally occurring (diabetes, high blood
pressure)
Give this one a try later!
Rats🐀
Research: Hepatitis B and C, emesis, hepatocellular carcinoma,
myopia
Give this one a try later!
Shrews
Scientific Names: Reptilia
The Reptilia class includes tortoises, turtles, crocodiles, alligators,
snakes, & lizards.
Gestation:
Litter size/# of young:
Begins eating solid feed:
Age at weaning:
Common Breeds:
Female:
Female (adult) weight:
Female puberty age:
Female optimum reproductive age:
Male:
