الفهرس 
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Abstract
A total of 120 fresh chicken meat and its products represented by chicken breast, thigh muscles, liver and luncheon (30 of each) were collected from different markets in Zagazig city at Sharkia Governorate, Egypt. The collected samples were subjected to microbiological examinations with application of trials for improving its sanitary status.
Part(I):-
1. Bacteriological examination:
The most prevalent bacteria was E.coli (28.33%) followed by S. aureus (22.5%), Salmonella sp. (13.33%) and the least prevalent was Bacillus cereus ( 4.17%).
1.1. Staphylococcus aureus:
The prevalence rates of coagulase positive S. aureus were 30%, 40%, 10% and 10% from the examined chicken breast, thigh muscles, liver and luncheon respectively.
The highest total S. aureus count was in chicken breast varying from 2 to 4.23 with mean values of 3.15±0.65, log10 CFU/g, followed by chicken thigh with a range of 2 to 3.85 and a mean value of 3.09±0.6 log10 CFU/g, then chicken luncheon ranged from 2 to 4.11 with an average of 2.99±0.62 log10CFU/g, and the lowest count was achieved in chicken liver ranged from 2.3 to 3.6 with mean value 2.74 ±0.54 log10 CFU/g).