The likelihood substitution of low priced meat or tissues for that of high priced one has increased as the replacement of chicken meat instead of beef. So, the idea of this study were to find out this fraud by detection of chicken DNA and to discover foreign chicken tissue types histologically, especially in heated ready to eat (RTE) beef products. Fifty samples of ready to eat (RTE) Kofta and hawawshy (25 each) were collected in Assiut city. Polymerase chain reaction technique was applied on 12S rRNA gene for detection of chicken DNA in the collected samples. Out of the total examined kofta and hawawshy samples, 78% (39/50) of the examined samples were found to be adulterated with chicken DNA. Different foreign tissues were found histologically.
The results of this research indicated that the quality of examined RTE meat products was very bad and therefore strict control on such products should be applied by appropriate authorities.