Authors: ÖZLEM TURGAY
Abstract: The aim of this study was to determine the presence of Listeria monocytogenes, Yersinia enterocolitica and Salmonella enteritidis in 123 liquid whole quail eggs. The method suggested by USDA-FSIS was used for the isolation and identification of L. monocytogenes. S. enteritidis was identified and sero-grouped by co-agglutination test and slide agglutination test. Y. enterocolitica was isolated in Trypticase-Soy Broth, with bile-oxalate-sorbose medium for enrichment. Both enrichment cultures were plated on Yersinia Selective Agar Base containing cefsulodin, irgasan and novobiocin (CIN Agar). No Yersinia was detected among the natural flora of the quail eggs. Seven (5.69%) of 123 whole quail eggs were determined to have S. enteritidis and 5 of them (4.06%) were found to have L. monocytogenes. There were significant differences between the 3 groups of bacteria (P < 0.05).
Keywords: Listeria monocytogenes, Yersinia enterocolitica, Salmonella enteritidis, quail egg
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