Bacteriological evaluation of freshly slaughtered chicken carcasses

Abstract

A grand total of 100 random samples of chicken carcasses were collected from local commercial retailshops in BeniSuef city. All samples were bacteriologically examined for determination of aerobic platecount (APC), psychrotrophic count, Enterobacteriaceae count, Coliforms count, Staphylococcus countand Staphylococcus aureus count. The mean values were 6.18 ± 0.67, 3.31 ± 1.33, 3.91 ± 0.96, 2.07 ±1.87, 3.50 ± 1.68 and 2.71 ± 1.67 log cfu/g, respectively. Moreover, this study aimed to isolate andidentify Salmonella spp., Staphylococcus aureus, E. coli and Listeria monocytogens, their prevalencepercentages were 12%, 73%, 4% and 6 %, respectively, while clostridium perfringens and E.coliO157:H7 failed to be detected in the examined samples. Salmonella could be serologically identified asS. typhimurium, S.virchow and S.enteric with percentages of 41.70 %, 41.70 % and 16.60 %,respectively. Moreover, the isolated serotypes of E. coli were E. coli O55 and E. coli O86 A withpercentages of 50% and 50% for each one, respectively