The Vision of DairyAntibiogram Promote comprehensive stewardship of Bayer mastitis antimicrobial dry cow and lactating cow treatments. Use broth microdilution methodology to provide farm-level antibiograms which guide the prescription of antimicrobials used in the treatment of mastitis. Define and objectively quantify the current status of antimicrobial susceptibility of the common mastitis pathogens in New Zealand. Monitor this status over time. Maintain a database so that different antimicrobial use patterns and their effects on antimicrobial resistance can be investigated.