A pack animal, also known as a sumpter animal or beast of burden, is a working animal used to transport goods or materials by carrying them, usually on its back.
of many species are used in this way, among them , , , dromedaries, gayal, pack goat, packhorse, , , reindeer, and domestic yak.
Pack animals may be fitted with and may also carry . Alternatively, a pair of weighted materials (often placed symmetrically) are called Pannier.
While traditional usage of pack animals by nomadic tribespeople is declining, a new market is growing in the tourist expeditions industry in regions such as the High Atlas mountains of Morocco, allowing visitors the comfort of backpacking with animals. The use of pack animals "is considered a valid means of viewing and experiencing" some in America, subject to guidelines and closed areas.
In the 21st century, special forces have received guidance on the use of horses, mules, llamas, camels, dogs, and elephants as pack animals.
Yaks are loaded differently according to region. In Sichuan, is carried for in 6 hours. In Qinghai, at altitude, packs of up to are routinely carried, while up to is carried by the heaviest steers for short periods.
Llamas can carry roughly a quarter of their body weight, so an adult male of can carry some .
Loads for equids are disputed. The US Army specifies a maximum of 20 percent of body weight for mules walking up to a day in mountains, giving a load of up to about . However an 1867 text mentioned a load of up to . In India, the prevention of cruelty rules (1965) limit mules to and ponies to .
Reindeer can carry up to for a prolonged period in mountains.
Load carrying capacity
See also
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