INCIDENCE OF YERSINIA SPP. IN SOME RETAIL MEAT IN MANSOURA CITY EGYPT

Document Type : Research article

Authors

Animal Health Research Institute, Mansoura

Abstract

A total of 200 samples of fresh beef meat, imported frozen meat, locally frozen minced meat and raw chicken meat (each of 50) were obtained
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Assiut Vet. Med. J. Vol. 41 No. 82, July 1999
randomly from different butcher shops; supermarkets and chicken slaughter shops in Mansoura city El-Dakahlia province Egypt for the presence of Yersinia spp. Overall Yersinia spp. was recovered from 8.5% of the examined samples. The isolation rate was dependent on the meat type and, these bacteria were isolated from fresh beef meat, imported frozen meat; locally frozen minced meat and raw chicken meat in percentage 6%, 12%, 10% and 6% respectively. The contamination rate of Y.enterocolitica in tested meats was 2-8%, except for fresh beef meat from which no Y. enterocolitica was recovered. Other species of Yersinia (Y intermedia; Y.Fredreksenii and Y.kristensenii) was isolated from 6% of all samples. Two of Y. enterocolitica isolates from imported frozen meat belonged to pathogenic biotype 4. Other Y enterococlitica isolates were regarded as environmental strains which belonged to biotype IA. Also the public health inportance of these organisms were discussed.

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