Qualitative and quantitative detection of antimicrobial drug residues in hen,s eggs and egg products

A total of 150 samples (50 each of brown, white shelled and doubleyolk eggs) in addition to 50 samples ofbalady eggs (25 each from marketsand farmers) were collected from different localities in Sharkiagovernorate.Out of 50 brown shelled egg samples examined, antibiotic residueswere detected in 30 samples (60%) while in white shelled 34 (68%) werecontained antibiotic residues. In double yolk egg, out of 50 samples 34(68%), the residues of antibiotic could be detected.Antibiotic residues were detected in 4 (16%) of Balady eggscollected from fanners and 8 (32%) of Balady eggs collected from markets.Antibiotic residues were detected in 5 samples (50%) out of 10imported egg powder samples.The withdrawal period of three common preparations of antibioticsused for treatment of hens were studied