الفهرس 
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Abstract
The present study was conducted to evaluate the bacteriological status; Aerobic bacterial count, Coliform and Staph. aureus counts as well as Isolation and identification of Salmonella, Staph. aureus and E. coli true fecal type of forty random samples of imported frozen beef and buffalo meat collected from retail stores while native fresh beef and buffalo meat samples were collected from a slaughterhouse in Cairo governorate (ten samples each). Obtained results revealed that the mean aerobic bacterial counts (cfu/g) were 3.4x105±1.4x104, 4.7x105±2.7x105, 1.3x105±8.7x104 and 3.8x105±1.5x105; Coliform counts (MPN/g) were 2.2x102±1.1x102, 3.1x102±1.4x102, 4.3x102±1.2x102 and 7.8x102±1.3x102 and Staph. aureus counts (cfu/g) were 4.1x102±3.9x102, 3.4x102±1.2x102, 1.5 x10±4.4 and 1.6 x102±8.3x10 for examined imported frozen beef, native beef, imported frozen buffalo and native buffalo meat samples respectively. Only one sample (10%) each of examined imported and native beef and native buffalo meat samples were unaccepted as they contained aerobic bacterial count >106cfu/g. in accordance with limits of EOS (1522/2005) for frozen meat and ESO (3602/2008) for fresh meat., Six isolates of E. coli was recorded in this study as two isolates (20%) from imported buffalo; three isolates (30%) from native beef and one isolate (10%) from imported beef samples. Meanwhile, Staph. aureus could be isolated from three samples (30%) each of imported beef and buffalo meat samples, while the organism could be isolated from 7 samples (70%) and 10 samples (100%) of native beef and native buffalo respectively. Salmonella could not be isolated from all examined samples. The public health importance of the isolated organisms was discussed.