الفهرس 
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Abstract
A total of 90 random samples of ready - to – eat chicken meat products represented by sheish tawook, chicken burger and chicken pane (30 of each) were collected from different restaurants of high and low standard levels of hygiene (15 of each) at El-Kalyoubia governorate and directly transferred to the laboratory for determination of their contents of
lead, cadmium and copper.The obtained results indicated that the mean values of lead concentration in the examined samples of shiesh tawook, chicken burger and chicken panee were 0.76 ± 0.07, 0.55 ± 0.06 0.32 ± 0.04 mg/kg wet weight, respectively, at low hygienic level, whereas, 0.52 ± 0.05, 0.39 ± 0.05 and 0.23 ± 0.03 mg/kg wet weight, respectively, at high hygienic
level. The differences between the examined samples of ready – to – eat
chicken meat products were highly significant (p < 0.01) according to
their lead content. According to EOS (2005) which recommended that the maximum permissible limit for lead is 0.1 mg/kg in ready – to – eat chicken meat products, the percentages of unaccepted shiesh tawook, chicken burger
and chicken pane samples were 73.33%, 46.67% and 40%, respectively,
at low hygienic level, while, 53.33%, 40% and 20%, respectively, at high
hygienic level. Also the obtained results indicated that the mean values of cadmium concentration in the examined samples of shiesh tawook,
chicken burger and chicken panee were 0.58 ± 0.05 , 0.38 ± 0.04 and 0.24
± 0.02 mg/kg wet weight, respectively, at low hygienic level, however,
0.40 ± 0.04, 0.26 ± 0.03 and 0.17 ± 0.03 mg/kg wet weight, respectively,
at high hygienic level. The differences between the examined samples of ready – to– eat chicken meat products were significant (p < 0.05) according to their cadmium content.