الفهرس 
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Abstract
A total of 90 random samples of chicken giblets represented by heart, gizzard and liver (30 of each) were collected from different slaughter poultry shops at Gharbia governorate.
The obtained results indicated that the mean values of lead, cadmium and copper in the examined samples of chicken giblets (mg/kg) were 0.29, 0.18 &1.65 for heart, 0.85, 0.52 & 3.91 for gizzard and 1.04, 0.89& 4.23 for liver, respectively.
In addition, the mean values of amoxicillin and sulphaquinoxaline in the examined samples of chicken giblets (ug/kg) were 47.5 & 65 for heart, 106.83 & 127.49 for gizzard and 133.17 & 153.86 for liver, respectively.
Accordingly, 16.67%, 36.67% and 43.33% of the examined samples of heart, gizzard and liver were unaccepted where they exceeded the maximum permissible limits of lead, respectively.
Concerning cadmium, 10.00%, 26.67% and 40.00% of such examined samples were unaccepted. In contrast, all examined samples of chicken giblets were accepted and within permissible limit for copper.
On the other hand, 3.33%, 10.00% and 13.33% of the examined samples of heart, gizzard and liver were unaccepted where they exceed the maximum permissible limits of amoxicillin, respectively.
With regard to sulphaquinoxaline, 10.00% and 13.33% of examined samples of gizzard and liver were unaccepted, respectively, while, all examined chicken heart samples were accepted and within permissible limit.
Public health significance of these serious residues in chicken giblets and possible sources of their contamination as well as some recommendations to control such residues were discussed.