Wild boar control review highlights efficacy-welfare tradeoffs

Wild boar population control is still a welfare tradeoff, not a settled science. That’s the takeaway from a new global systematic review in Animals that examined 119 studies and 181 experiments on Sus scrofa population reduction methods through November 11, 2025. The review argues that commonly used approaches, especially hunting-based strategies, often fall short of meaningful population suppression on their own, while more intensive methods can raise sharper animal welfare and ethics concerns. The topic matters well beyond wildlife management because expanding wild boar and feral swine populations are linked to crop losses, environmental damage, and disease risk at the wildlife-livestock interface, including African swine fever and other pathogens. (aphis.usda.gov)

Why it matters: For veterinary professionals, the review reinforces a familiar but uncomfortable reality: population control decisions are rarely just about efficacy. They also affect welfare, biosecurity, public trust, and the risk of unintended consequences, such as dispersal, behavioral adaptation, or incomplete removal of social groups. That’s especially relevant in swine health and mixed wildlife-livestock systems, where control policy can influence disease surveillance, outbreak preparedness, and the practical feasibility of reducing contact between wild and domestic pigs. USDA APHIS says feral swine are present in at least 35 U.S. states and cause an estimated $2.5 billion in damages and control costs each year, while WOAH continues to frame wild boar management as part of broader ASF prevention and control planning. (aphis.usda.gov)

What to watch: Expect follow-on debate over which combinations of trapping, hunting, fencing, fertility control, and emerging tools can deliver population-level impact without worsening welfare or disease-control outcomes. (mdpi.com)