In Holland in 2022 the use of antibiotics on dairy farms was 2.3 day doses per cow, the same as in 2021. The number of day doses per cow is based on the daily dose, the amount of active substance administered of a particular antibiotic that is active for one day. The average day doses per cow is then calculated by adding up all the daily doses and dividing by the average number of cows present in that particular year.