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AnAge entry for Equus asinus


Classification (HAGRID: 02962)
TaxonomyKingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Perissodactyla
                Family: Equidae
                    Genus: Equus
SpeciesEquus asinus
Common nameAfrican wild ass

Lifespan, ageing, and relevant traits

Maximum longevity47 years (captivity)
Sourceref. 671
Sample sizelarge
Data qualityhigh
Observations

When domesticated these animals are called donkeys. In captivity the African wild ass can live up to 28.5 years [0671]. Donkeys, however, have been reported to live up to 47 years, and females can reproduce for some 20 years [0434]. While these reports may be true, anecdotal reports of animals living over 50 years are doubtful.

Life history traits (averages)

Female sexual maturity708 days
Male sexual maturity1,005 days
Gestation359 days
Weaning
Litter size1 (viviparous)
Litters per year
Inter-litter interval
Weight at birth30,000 g
Weight at weaning
Adult weight164,998 g
Postnatal growth rate
Maximum longevity residual153 %

Metabolism

Typical body temperatureNot yet available
Basal metabolic rate164.9200 W
Body mass177500.0 g
Metabolic rate per body mass0.000929 W/g

References

[0671] Richard Weigl (2005), Longevity of Mammals in Captivity; from the Living Collections of the World
[0036] Savage et al. (2004), The predominance of quarter-power scaling in biology
[0610] Ernest (2003), Life history characteristics of placental non-volant mammals
[0730] Smith et al. (2003), Body mass of late Quaternary mammals
[0434] Ronald Nowak (1999), Walker's Mammals of the World
[0455] Virginia Hayssen et al. (1993), Asdell's Patterns of Mammalian Reproduction: A Compendium of Species-Specific Data

External resources

Integrated Taxonomic Information SystemITIS 180690
Animal Diversity WebADW account
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Genome ProjectSearch NCBI
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