Select Physiologic Data of Laboratory Animals a
Select Physiologic Data of Laboratory Animals a
|
Species |
Gestation Period (days) |
Litter Size |
Age and Body Weight at Sexual Maturity |
Usual Life Span (years) |
Average Body Temperature (°C) |
Heart Rate (bpm) |
Water Consumption (per day)b |
|
Mice |
19–21 |
4–12 |
6 weeks (20–30 g) |
1–3 |
37 |
310–840 |
4–7 mL |
|
Rats |
21–23 |
6–14 |
1.5−3 months (0.2–0.3 kg) |
2–3 |
37.5 |
300–500 |
8–11 mL/100 g |
|
Guinea pigs |
59–72 |
1–4 |
2–4 months (0.4–0.6 kg) |
3–5 |
38 |
230–380 |
10 mL/100 g150 mL |
|
Hamsters, golden |
15–18 |
4–10 |
2–4 months (85–110 g) |
2–3 |
37 |
280–410 |
30 mL |
|
Gerbils |
25 |
2–9 |
3 months (60–100 g) |
2–5 |
38 |
250–600 |
4–7 mL/100 g |
|
Rabbits |
30−32 |
4–12 |
5–6 months (3–4 kg) |
5–7 |
39 |
200–300 |
300–700 mL |
|
Squirrel monkeys |
150 |
1 |
2.5–3.5 years (0.6–1.1 kg) |
16–20 |
39 |
300–380c |
70–110 mL |
|
Rhesus monkeys |
165–175 |
1–2 |
4–5 years (5–11 kg) |
15–30 |
39 |
120–180c |
80 mL/kg |
|
a See also Features of the Reproductive Cycle. |
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b Typical of an average adult; varies with body mass index, number of animals per cage, moisture in feed, temperature, etc. |
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c Results obtained under anesthesia. |
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