Project RELACS – Improving inputs for organic farming. While antibiotics remain necessary treatments against mastitis, their widespread use leads to antibiotic resistance, which constitutes a threat to public health.

Many essential oils have antibacterial or anti-inflammatory properties. With the help of an advisor, dairy farmers can test alternative mastitis treatments with essential oils following a common protocol established by RELACS.

As a result of public health concerns regarding antimicrobial resistance in animal-based food products, conventional poultry companies have turned to ‘raised without antibiotics’ (ABF) and organic farming systems. In this work, we evaluated the influence of rearing systems on antimicrobial susceptibility in E. coli and extended-spectrum β-lactamase (ESLB) E. coli diffusion in conventional (C), organic (O) and antibiotic free (ABF) chicken samples collected from cloacal swabs and skin samples in slaughterhouse. The E.