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Animal Name: Rat

Scientific Name: Rattus novegicus

Class: Mammalia

Order: Rodentia

Body Temp: 90 degrees F (35.9 - 37 5 degrees C)

Respiration Rate: 85.5 BPM

Weight:

• Adult Male 300 g
• Adult Female 200 g
• Newborn 5 g

Food Consumption: 32 gm (100 ml/kg/day)

Sexual Maturity:

• Male 13 weeks
• Female 13 weeks

Gestation period: 20 - 22 days

Life Span: 3 years

Avg. Litter size: 7 - 11

Breeding Life:

• Male 1.5 years
• Female 1.5 years

Recommandad Temperature: 64.4-78.8 degrees F(18-26 degrees C)

Relative Humidity: 40 -70%

Photo Period (light/dark): 12/12

Identification Methods: ear notch, punch; tattoo

* Housing Requirements: floor area/animal = 17 - 70 sq. in.

Bleeding Methods: (tail) subclavian vein, orbital sinus (anesthetized), cardiac puncture (anesthetized)(terminal) - 10% of blood volume can be withdrawn for recovery procedure

Anesthesia Methods: 87 mg/kg ketamine 813 mg/kg xylazine, 6 - 10 mg/100 g body weight sodium pentobarbital, methoxyflurane

Euthanasia Methods: CO2 tank, OD sodium pentobarbital

Problem areas & diseases: human-rat bite fever, ring tail, cannibalism, malocclusion, Sendai virus, SDA virus, mycoplasmosis, pinworms

Other 1. Wistar albino 2. Sprague-Dawley albino 3. Long-Evans rat 4. Fisher-344 (f-344) no gall bladder; Hardenian gland secretes porphyrin ("red tears")

(See NIH Guide, page 13) Housing regulations may change pending new legislation.

Animal Name: Mouse

Scientific Name: Mus musculus

Class: Mammalia

Order: Rodentia

Body Temp.: 99 degrees F (36.5-38 degrees C)

Respiration Rate: 163 BPM

Weight:

• Adult Male 25 - 50 gm
• Adult Female 25 - 50 gm
• Newbom 1.0 gm

Food Consumption: 15 gm/100 gm/day

Sexual Maturity:

• Male 7 weeks
• Female 7 weeks

Gestation period: 19 - 21 days

Life Span: 2 years

Avg. Litter size: 5 - 10 pups

Breeding Life:

• Male 8 months
• Female 8 months

Recommended Temperature: 64.4-78.8 degrees F(18-26 degrees C)

Relative Humidity: 4 0 - 7 0 %

Identification Methods: ear tags, ear punch, notch

Photo Period (light/dark): 10/14

* Housing Requirements: floor area/animal = 6 -15 sq. in.

Bleeding Methods: orbital sinus, cardiac puncture in anesthetized animal (terminal procedure)

Anesthesia Methods: ketamine/xylazine, methoxyflurane, barbiturates pentobarbital 5 mg/100 gm body weight IP

Euthanasia Methods: OD barbiturates, CO2, cervical dislocation

Problem areas & diseases: grooming, teeth (malocclusion), cannibalism, pinworms, mouse pox - ectromelia virus, sendai, mouse hepatitis virus, mycoplasmosis

Other: may have accessory adrenocortical nodules

(See NIH Guide, page 13). Housing requirements may change pending new legislation.

 
 
 
 

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