Enteropathogenic (EPEC), necrotoxigenic (NTEC), and Shiga-toxin producing (STEC) are pathotypes responsible for severe clinical forms in humans and animals. They can be shed in the feces of animals with consequent environmental contamination. This study evaluated the antibacterial activity of essential oils (EOs) from oregano (, savory , thyme (, and their blend against EPEC, NTEC, and STEC strains previously isolated from avian fecal samples. Minimum inhibitory concentration values between 0.039% and 0.156% were found with EO, between ≤0.0195% and 0.156% with both and EOs, and between 0.039% and ≤0.0195% with the blend. The mixture with equal parts of EOs from oregano, savory and thyme seems a promising alternative product to combat pathogenic strains responsible for environmental contamination.
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