The Chinese are bad news for donkeys

That's not a headline I was expecting in Science magazine: Donkeys face worldwide existential threat.   (That is the headline in the magazine itself - it's not used in the article at the link for some reason.)

Anyway, the problem is once again silly Chinese traditional medicine, of which I have complained before as just about the worst cultural feature to come out of that country:

Over the past 6 years, Chinese traders have been buying the hides of millions of butchered donkeys (Equus asinus) from developing countries and shipping them to China, where they’re used to manufacture ejiao, a traditional Chinese medicine. The trade has led to an animal welfare nightmare, along with a threat to donkey populations, the severity of which is only now emerging. Without drastic measures, the number of donkeys worldwide will drop by half within 5 years, according to a 21 November report by the Donkey Sanctuary, an international equine welfare charity based in Sidmouth, U.K. The crisis threatens many of the world’s rarer donkey breeds and a vital means of transport for the poor....

Ejiao, in use for thousands of years, purportedly treats or prevents many problems, including miscarriage, circulatory issues, and premature aging, although no rigorous clinical trials support those claims. The preparation combines mineral-rich water from China’s Shandong province and collagen extracted from donkey hides, traditionally produced by boiling the skins in a 99-step process done at specific times of the year. Once reserved for China’s elites, ejiao is now marketed to the country’s booming middle class, causing demand to surge. One producer, Dong’e Ejiao in Liaocheng, China, touts it as “a creation of heaven and earth” that’s now passing “from the royal tribute to the home of ordinary people.”

Despite government incentives for new donkey farmers, farms in China can’t keep up with the exploding demand, which the Donkey Sanctuary currently estimates at 4.8 million hides per year. Donkeys’ gestation period is one full year, and they only reach their adult size after 2 years. So the industry has embarked on a frenzied hunt for donkeys elsewhere. (Importing hides is not illegal in China, and the import tax was lowered from 5% to 2% last year.) This has triggered steep population declines. In Brazil, the population dropped by 28% between 2007 and 2017, according to the new report.