Abstract
Since January 2021, South Tyrolean dairies have banned the food preservative lysozyme in cheese production. In order to prevent late-blowing, it is therefore important that the farm tank milk (FTM) has clostridia values as low as possible. A survey addressing several aspects related to forage production was conducted in spring 2021. e answers of 535 valid questionnaires were linked to the respective clostridia levels in the FTM from September 2020 to April 2021. e results show that farms producing and feeding silages had higher clostridia levels in the FTM than farms feeding hay. Complying with the good practice rules of silage-making effectively reduced clostridia contamination in FTM.