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Abstract A total of 80 random samples of fresh and frozen meat (40 of each) were randomly collected from butcher shops at Zagazig city, El-Sharkia governorate, Egypt for bacteriological assessment of the collected samples for Psychrtrophic count, Pseudomonas species count and total Staph. aureus count. Part (1): The obtained results revealed that the psychrotrophic bacterial counts in the fresh and frozen meat samples were ranged from 3.6 to 6.15 and 4 to 7.36 log10cfu/g with mean values of 4.6 ± 0.4 and 6.2 ±0.18 log10cfu/g, respectively.The psychrotrophic occurance was in all the examined fresh and frozen meat (100%) . The result declared that the mean Pseudomonas aeruginosa counts in fresh and frozen meat sample were ranged from 3.6 to 6.15 and 5 to 7.37 log10 cfu/g with mean values of 4.3±0.15 and 6.3 ± 0.15 log10 cfu/g , respectively.The prevalence of Pseudomonas spp. in fresh and frozen meat samples were 72% and 80%, respectively. Staph.aureus counts (log10cfu/g) of fresh samples varied from 3 to 5.9 log10cfu/g with a mean value 3.5 ± 0.3. However, the Staph.aureus counts of frozen meat ranged from 3.6 to 5.52 log10cfu/g with a mean value 4.7 ± 0.12. |