A U.S. District Court Judge ruled yesterday in favor of Friends of Animals regarding the detrimental effects of PZP, a pesticide applied to wild horses and burros to reduce herd sizes. Long-term use can result in sterilization.
Many of the so-called advocacy groups accept and promote wild horse fertility control, with some of them actually providing it, to the delight of the public-lands ranchers.
A news release by FOA said that the EPA will now be required to review the “evidence of unintended—and previously undisclosed—side effects on both targeted mares and wild horses in general.”
Stallions on the Maryland side of Assateague Island. where contraceptives have been applied for many years, have a high mortality rate, the sex ratio of the herd is far from normal and genetic diversity may be compromised. But the PZP zealots point to it as a model of wild horse management.