... Food Safety, Finnish Food Safety Authority Evira, Helsinki, Finland, 4Estonian National Veterinary Laboratory, Tartu, Estonia and 5Institute of Animal Husbandry of the Estonian Agricultural ... with mastitis prevalence and the prevalence of bacterial pathogens (listed in table 1) was analysed statis-tically at herd level. The prevalence of mastitis and the prevalence of each bacteria species ... not pasturing. The beddingmaterial was sawdust in 32%, straw in 16%, cut straw in 4%, peat in 8% and a combination of the previously men-tioned materials in 40% of the herds. All herds had solidmanure...