The Advancement of Dairying in Austria (ADDA) project is a 3-year research assignment encouraging cooperation between academic institutions and the local dairy industry. In this part of the study, veterinarians were asked to provide electronic treatment records to allow for an analysis of antimicrobial use on dairy farms. In Austria, antibiotics are always prescription-only medications, are never available over-the-counter and when antimicrobial substances are dispensed by veterinarians to farmers for use in food-producing animals then this must be reported annually to the relevant authorities. The preliminary analysis presented here covers 186 dairy farms, including treatment records for a total of 4,960 cows, 5,030 youngstock, and 2,271 calves. Data were collected on treatments carried out between October 1, 2015, and September 30, 2016. To date, 12 veterinary practices have provided their data via an online interface. Of 12,432 data sets received, 6,530 (52.5%) included antibiotic treatments. Antimicrobial treatments were analyzed by means of the following formula to calculate the number of treatment days per 100 production days: #TD100 = Σ amount active substance (mg) × 100/[DDDvet (mg/kg/d) × production days (d) × standard weight (kg)]. A standardized liveweight of 500 kg for a cow, 200 kg for youngstock and 80 kg for calves was used. The Defined Daily Dose for animals (DDD_vet) unit was taken from official recommendations made for each active substance by the European Medicines Agency. Results are presented as descriptive statistics. Overall, the median TD₁₀₀ for total antibiotic use was 0.48; that is, bovine animals were treated for 0.48 d per 100 d. When calculated according to diagnosis, the vast majority of antibiotic treatments were for udder disease (median TD₁₀₀ = 0.33). With respect to the “highest priority critically important antibiotics” (HPCIAs: fluoroquinolones, third- and fourth- eneration cephalosporins and macrolides), the median TD₁₀₀ was 0.09. HPCIAs accounted for 21% of the total amount of antimicrobial doses used in bovines. This quantitative analysis will be used to develop guidelines to reduce antibiotic use, particularly HPCIAs, in livestock.