PMU stands for "pregnant mare’s urine."
The urine of pregnant mares is used in the manufacturing of Premarin, a female hormone replacement product. This industry is located mostly in Canada, in the region of Manitoba, close to the Wyeth-Ayerst pharmaceutical company who manufactures Premarin.
Since research has proven that Premarin causes cancer in women, there has been a decline in production of the hormone. Consequently, over the last few years more than 300 PMU ranches have been closed. Many foals born to production mares end up at slaughterhouses.
A better understanding of the risks of long term HRT led to drastic cuts in production by the manufacturer, Wyeth Pharmaceuticals, starting in the fall of 2003. More than 20,000 horses, most of them pregnant, were potentially affected by the initial cuts. While we’re encouraged by the decreased exploitation of horses, the “unemployed” horses are in need of good homes.
1. PREMARIN BAD FOR WOMEN AND HORSES
2. WHAT YOU CAN DO