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Journal Article

Journal article

Tetracycline Residues in Intensive Broiler Farms in Upper Egypt: Hazards and Risks  [2015]

Hosnia Swafy Abdel-Mohsein; Manal Abdalla Mohamed Mahmoud; Awad Abdel-Hafez Ibrahim;

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Antibiotics are used in poultry farms to enhance growth, feed efficiency and reduce diseases.Additionally, prophylactic treatment is common during periods of stress. Tetracyclines are themost commonly used antimicrobials in food-producing animals. In Egypt veterinary antibiotics areeasily accessible with the increased intensive poultry production therefore, this study wasconducted to estimate tetracyclines' residue in poultry tissues collected from broiler farms inUpper Egypt. Four members of tetracycline group; Oxytetracycline (OTC), Tetracycline (TC),Doxycycline (DOC) and Chlortetracycline (CTC) were evaluated in 282 samples (muscle, liverand kidney samples)using HPLC. OTC residue was detected in 50, 100 and 93 % of muscle, liverand kidney samples, respectively, while TC residue could be detected in 69, 72 and 86 %,respectively. For DOC and CTC, none of the analyzed samples showed value below theircorresponding limit of detection. OTC, DOC and TC highest levels were recorded in liver; 7.23,20.43 and 1.06µg/g, respectively followed by that of the kidney samples. The residues in allmuscle and liver samples were higher than the maximum residue limits of both FAO and FDAreports for DOC. Furthermore, muscle and liver samples exceeded these guideline limits for CTCand OTC, respectively. Health risk of tetracyclines' residue for Egyptian population was estimatedto ensure the hygienic fitness for secure consumption. In both adults and kids, the assessed risk for
DOC in muscle, liver and kidney was distinctively. The assessed risk of OTC residue in liver andCTC in muscle in adults was also distinctively. Moreover, the assessed risk of TC in Kids formuscle and liver was considerable. So, the potential health hazard for Egyptian population washigh from consumption of poultry edible especially liver containing high level of DOC and OTC.