[Identification of residual antibiotics in the tissues of slaughter animals using electrophoresis bioautography].

An electrophoretic identification chart of the antibiotics penicillin, streptomycin, neomycin, erythromycin, tylosin and tetracyclines was made. Minimum inhibiting concentrations of the above antibiotics were determined for the bacterial tester-strains Bacillus subtilis BGA, Micrococcus luteus ATCC 9341 and Bacillus stearothermophillus v. calidolactis C 953. The obtained results were applied to identify residues of antibacterial substances in the tissues of slaughter animals, milk and other samples, as a follow-up of detection microbiological methods of plate agar diffusion.