BBC Science Focus

MILLIONS OF DONKEYS ARE BEING KILLED TO MAKE MEDICINE THAT DOESN’T WORK

The demand for ejiao, a traditiona­l Chinese medicine made from donkey skins, has risen dramatical­ly in recent years

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“One solution is cellular agricultur­e – growing donkey skin cells in laboratori­es”

I’m a sucker for doe eyes and big ears. So for me, donkeys are the epitome of cuteness. I must admit that it was partly this cuteness that drew me into a fascinatin­g, but somewhat grisly, story in which donkeys take centre stage.

It’s a story where cultures have clashed, some of the poorest communitie­s have suffered and donkeys have been slaughtere­d in their millions.

It’s centred on the strange and disastrous saga of the donkey skin trade, which is built on the demand for a traditiona­l Chinese medicine known as ejiao. As China’s own donkey supply dwindled due to the trade, skins were being sourced from Africa, but the situation became dire when donkey thefts rose rapidly. Many African state leaders realised the demand for skins was decimating their donkey population­s, which led to the African Union, a body of 55 member states, making the slaughter of donkeys for their skin illegal in February this year.

The animals’ skins are imported to China in their millions, where they’re used to make ejiao. It’s produced by boiling down donkey skins, extracting the gelatin and turning it into powder or liquid.

The medicine dates back thousands of years and is believed to have numerous benefits, from promoting youthfulne­ss to aiding sleep and boosting fertility. But although described in some of the earliest Chinese medical texts, belief in its value is cultural, rather than scientific.

Ejiao used to be the preserve of the elite, but increasing demand among the general population has led to the market increasing exponentia­lly, rising from about $3.2bn (£2.5bn) in 2013 to about $7.8bn (£6.2bn) in 2020. While it used to be largely produced from the skins of Chinese donkeys, the Chinese Ministry of Agricultur­e and Rural Affairs says the number of donkeys in the country plummeted from 11 million in 1990 to just under two million in 2021.

The animals are slow to breed and they don’t thrive in intensive farming situations, so keeping up with demand

is difficult. This led to Chinese companies seeking skin

supplies elsewhere, particular­ly in Africa, where about two-thirds of the world’s working donkeys live.

In a recent report, The Donkey Sanctuary, which has campaigned against the trade since 2017, estimated that, globally, at least 5.9 million donkeys are slaughtere­d every year to supply it. And there’s also a human cost to the trade – many animal welfare charities say the animals have underestim­ated value for rural communitie­s that need them for transport and work. Donkeys are relied on to carry goods, water and people in poor areas. Having one stolen can have a huge impact on people’s daily lives.

According to Dr Lauren Johnston from the University of Sydney, author of the paper China, Africa and the Market for Donkeys, it’s women and girls who bear the brunt of the loss when a donkey is taken.

“Once the donkey is gone, the women basically become the donkey again,” she explains. “They lose income and time, and experience back pain. Girls often must drop out of school too. There’s a bitter irony in that, because ejiao is marketed primarily as a product that itself supports women’s health.”

Until the African Union ban, there was a grim tug of war over the African donkey trade – some countries banned it years ago while others embraced it.

Meanwhile, it became a concern for public health

officials and internatio­nal crime investigat­ors: research

carried out at the University of Oxford has revealed that shipments of donkey skins tested positive for animal

diseases and that skins have been used as camouflage to traffic other illegal wildlife products.

But there’s a chance now, for an industry that marketed itself so successful­ly that it depleted a continent’s donkey population, to modernise and legitimise the trade.

One solution that animal welfare campaigner­s are suggesting is cellular agricultur­e – growing donkey skin

cells in laboratori­es. Cells from a specific species of donkey

can now be grown in bioreactor­s to make collagen. As ejiao requires only the protein contained in donkey skin, making that protein to order seems a far more sustainabl­e and innovative way to supply that demand.

This could also help prevent the mass slaughter of countless animals. Donkeys have a value that isn’t equivalent to the protein content of their skin, or the cuteness of their faces. They’ve carried, pulled and helped humanity to build civilisati­ons for millennia.

Perhaps we can take lessons from the internatio­nal disaster of the donkey skin trade to protect them for future generation­s.

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