Quarter-selective dry cow therapy to reduce the antibiotic use in dairy farming

• One approach to reduce the use of antibiotics is the quarter-selective dry cow therapy, where only quarters infected with major pathogens are treated with antibiotics at dry-off. • The project MinimA investigated this pathogen-based approach on commercial dairy farms, resulting in a substantial reduction in the use of antibiotics at dry-off. • To achieve a sustainable reduction in antibiotic use, the focus must be on preventing new intramammary infections during the dry period.