Rat Physiology - WikiNormals

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WIKINORMALS
SMALL RODENT SECTION



Physiology Units Approximate Value
Adult Weight Grams 250 - 400
Birth Weight Grams 5 - 6
Blood Volume Milli-litres per Kg 57.5 - 69.9
Breeding Duration (Commercial) Litters 5 - 6
Food Consumption Grams per day 20 - 30
Gestation Length Days 21 - 23
Heart Rate Beats per min 400
Litter Size No units 8 - 14 pups
Oestrus Cycle Days 4 - 5
Postpartum Oestrus No units Fertile within 48 hours
Rectal Temperature Fahrenheit 99.5
Rectal Temperature Centigrade 37.5
Respiratory Rate Breaths per min 66 - 114
Urine Output Per 100 grams body weight per day 5.5 Milli-litre
Water Consumption Milli-litres per Kg per day 114
Weaning Age Days 21