AnAge entry for Psammomys obesus

Classification (HAGRID: 03493)

Taxonomy
Kingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Rodentia
                Family: Muridae
                    Genus: Psammomys
Species
Psammomys obesus
Common name
Fat sand rat

Lifespan, ageing, and relevant traits

Maximum longevity
3.2 years (captivity)
Source
ref. 671
Sample size
Medium
Data quality
Acceptable
Observations

Used as a biomedical model of nutritionally-induced diabetes type 2 and obesity. Record longevity in captivity is 3.2 years [0671]. In one study, degeneration of the intervertebral disks was observed from 6 months of age [0885].

Life history traits (averages)

Female sexual maturity
100 days
Male sexual maturity
Gestation
24 days
Weaning
28 days
Litter size
3.5 (viviparous)
Litters per year
Inter-litter interval
38 days
Weight at birth
6.25 g
Weight at weaning
40 g
Adult weight
212 g
Postnatal growth rate
0.0304 days-1 (from Gompertz function)
Maximum longevity residual
28%

Metabolism

No information on metabolism is available.

References

External Resources

Integrated Taxonomic Information System
ITIS 632993
Animal Diversity Web
ADW account
Encyclopaedia of Life
Search EOL
NCBI Taxonomy
Taxonomy ID 48139
Entrez
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Ageing Literature
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Internet
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