Mexico meat sector resists new livestock rules Screwworm outbreak strains US-Mexico trade ties30 September 2025 30 September 2025 2 minute read 2 minute read By: By: Global Ag Media North AmericaMexico's meat industry is pushing back against new government regulations on livestock movement as tensions with the United States heat up over an outbreak of the flesh-eating screwworm parasite, reported Reuters. Restricting movement of livestock from the south to the north of the country "threatens the viability of a sector that generated $192 billion in 2024," Mexican meat chamber AMEG said in a statement released on Friday. "Recent measures... jeopardize the supply chain of the meat production sector," AMEG said without specifying which measures. The ivermectin requirement would substantially delay livestock movement, the official said. The US government has kept its border mostly closed to Mexican cattle imports since May.