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The U.S. Interior Department is using GonaCon to sterilize wild horse mares in Theodore Roosevelt National Park, sparking debate over its long-term effects.
The U.S.
Interior Department, led by former North Dakota Governor Doug Burgum, is using GonaCon—a contraceptive causing long-term infertility—to manage wild horses at Theodore Roosevelt National Park, injecting nearly all reproductive-age mares during recent roundups.
Despite concerns from advocates about permanent sterility, declining foal survival, and reduced genetic diversity, officials maintain the method is effective for ecosystem protection.
Critics urge a shift to PZP, a reversible alternative, but the agency continues favoring GonaCon for its longer duration, raising ongoing ethical and ecological concerns.
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Los EE.UU. El Departamento del Interior está usando GonaCon para esterilizar yeguas de caballos salvajes en el Parque Nacional Theodore Roosevelt, provocando un debate sobre sus efectos a largo plazo.