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Turkish Journal of Agriculture and Forestry

DOI

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Abstract

The presence of Yersinia entrocolitica and L. monocytogenes in total 211 raw milk samples were investigated. In this study a total number of 14 Y. enterocolitica and Y. enterocolitica like microorganism have been isolated. 3.79% (8 samples) of the total isolation were characterized as Y. enterocolitica whereas 2.83% (6 samples) of these were found to be Y. enterocolitica like microor-ganism. 1.4% of the total Y. enterocolitica like microorganism (3 samples) were identified as Y. kristensenii, 0.94% (2 samples) of the total Y. enterocolitica like microorganism identified as Y. frederiksenii and 0.47% (1 samples) of the total. Y. enterocolitica like microorganism identified as Y. intermedia. A total of 0.94% (2 samples) L. monocytogenes were isolated in the same raw milk sam-ples. Y. enterocolitica and like these microorganisms were observed to grow very easly in low temperature in according to seasonal dis-tribution. 42.85% (6 samples) of total isolations were made during winter time, 35.71% (5 samples) of total isolations were made during spring time, 21.42% (3 samples) of total isolations were made during summer time. One of the L. monocytogenes was iso-lated in winter whereas the other one was isolated in spring season. When the isolation of L. monocytogenes, Y. enterocolitica and Y. enterocolitica like microorganism were investigated according to the places where raw milks are taken; it was detected that the isolation had been done in Ankara and its around.

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