Rat Physiology - WikiNormals
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| 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 |