In August, Burkina Faso took the same step, after 45,000 donkeys were slaughtered in six months from a total population of 1.4 million.
In both cases, the value of donkeys soared and the fledgling industry delivered a valuable stream of foreign currency. But growth came at a cost.
Beyond the severe damage to donkey populations, the new industry caused environmental and economic problems.
The spread of abattoirs generated a backlash. In the Burkinabe village of Balole, local farmersreportedly attacked and closed a slaughterhouse in protest at blood and offal leaking into their water supplies.
The donkey boom also attracted farmers from other livestock trades, which suffered as a result, and were also affected by inflation.
"In Niger and Burkina Faso the rising value of donkey hide and meat created inflationary impact in other sectors," says Dr. Emmanuel Igbinoba. "The price of other animals rose because of the donkey, not because there was demand for this animal, which caused imbalance in the economy."
The exporting countries suffered from a lack of regulation, according to Eric Olander, co-founder of the China Africa Project and host of the China in Africa podcast.