| Physiology
|
Units
|
Approximate Value
|
| Adult Body Weight
|
Grams
|
Approx. 20 (Variable with Breed)
|
| Adult Heart Rate
|
Beats per min
|
600 - 900
|
| Birth Weight
|
Grams
|
0.75 - 2.0
|
| Blood Volume
|
Per 100mg Body Weight
|
5.5ml
|
| Breeding Age
|
Weeks
|
6 - 8
|
| Breeding Duration (Commercial)
|
No units
|
6 - 10 litters
|
| Food Consumption
|
Per 100 grams body weight per day
|
15 grams
|
| Gestation Length
|
Days
|
19 - 21
|
| Life Span
|
Years
|
1.3 - 3 (Highly variable)
|
| Litter Size
|
No Units
|
1 - 10 pups (Extremely Variable)
|
| Newborn Heart Rate
|
Beats per min
|
286 +/- 56
|
| Oestrus Cycle
|
Days
|
4 - 5
|
| Postpartum Oestrus
|
No units
|
Within 24 hours
|
| Rectal Temperature
|
Centigrade
|
36.5 - 38.0
|
| Respiratory Rate
|
Breaths per min
|
Approx. 163
|
| Urine Output
|
Milli-litres per day
|
1.6
|
| Water Consumption
|
Per 100mg body weight/day
|
15ml
|
| Weaning Age
|
Days
|
21 - 28
|
