Residues of maduramicin and avoparcin in edible tissues of chickens

ABSTRACT

The current study showed the presence of traces of Maduramicin residues in tissues of treated chickens, when the drug was added to the ration from one day old and through 42 days of age at level of 5 ro 10 ppm of feed. The highest values of residues were recorded in fat and skin and less in liver, kidneys and muscles. These residues disappeared two days after withdrawal of the dry when used in the recommended concentration in the ration and 3 days after withdrawal of the drug given in double recommended concentration. Meanwhile, these results demonstrated that there were no detectable Avoparcin residues in edible tissues of treated chickens. Moreover, Avoparcin simultaneously given with Maduramicin did not alter the residual amount of Maduramicin in tissues of chickens