Raw milk samples obtained from the Foundation of Milk Industry, three private dairy companies and individual dairy farms in Sivas, were tested for the presence of Listeria species. A total of 100 raw milk samples were analysed by Food and Drug Administration (FDA) and two-stage enrichment techniques. Two-stage enrichment procedure was found to be more effective than FDA method in isolating Listeria species from raw milk. The overall incidence of Listeria species in raw milk was 6%. Listeria monocytogenes was found in 4% of the raw milk samples, while L. innocua was found in 2% of the samples. One sample was revealed to contain two serotypes of L. monocytogenes.

Raw milk samples obtained from the Foundation of Milk Industry, three private dairy companies and individual dairy farms in Sivas, were tested for the presence of Listeria species. A total of 100 raw milk samples were analysed by Food and Drug Administration (FDA) and two-stage enrichment techniques. Two-stage enrichment procedure was found to be more effective than FDA method in isolating Listeria species from raw milk. The overall incidence of Listeria species in raw milk was 6%. Listeria monocytogenes was found in 4% of the raw milk samples, while L. innocua was found in 2% of the samples. One sample was revealed to contain two serotypes of L. monocytogenes.