800 cows were destroyed in the Moscow region. Although the veterinary rules stipulate the treatment of sick animals, on the night of November 6, a massive elimination of cattle took place in the Kolomna district of the Moscow region. According to local residents, the carcasses of about 800 cows were burned. The cause was an outbreak of contagious dermatitis nodosa at Rossmilk Farm. Initially, the animals were going to be disposed of near the village of Gornostayvo. However, after protests by local residents, the site was moved to the Neftzino village area. According to eyewitnesses, hundreds of car tires were brought to the scene to burn the carcasses. Residents feared that toxic smoke from burning rubber would spread to nearby settlements. At night a huge flame rose above the field. Eyewitnesses posted videos of what was happening. Police were on the scene and the area was cordoned off. The representatives of the agricultural plant confirmed to the journalists the fact of burning the biological waste, and said that they acted in accordance with the veterinary rules. But here a fundamental question arises: why did they choose the mass extermination of animals? Veterinary epidemiologist Svetlana Shchepyotkina draws attention to Ministry of Agriculture order No. 588 of August 24, 2021. Its instructions provide for isolation and treatment of animals with dermatitis nodosa, as well as vaccination of clinically healthy animals. At the same time, the rules also allow the slaughter of animals under certain conditions. But according to published reports, it is still not possible to determine how many of the cows that were destroyed were really sick, how many were healthy, and based on which veterinary conclusions the decision was made to destroy the entire herd. An equally serious issue is environmental safety. If car tires were indeed used to burn carcasses, it was necessary to determine who approved this disposal method and whether its environmental impact was assessed.