P. Panayotov1, V. Mihailov2*, D. Rakov3 1Department of Milk and Milk Products, Technological Faculty, University of Food Technologies, 26 Maritza, 4002 Plovdiv, Bulgaria 2Department of Animal Husbandry – Ruminants and Dairy Farming, Faculty of Agriculture, Trakia University, 6000 Star

Six strains lactobacilli – L. reuteri (3), L. plantarum (2) and L. brevis (1), and five strains enterococci – E. faecalis (3) and E. faecium (2) were tested for their inhibitory activity against some enteropathogenic bacteria and their tolerance to unfavorable conditions o