Liquid chromatographic determination of tylosin in mastitic cow's milk following therapy.
Liquid chromatographic analysis of milk samples from 6 cows treated with tylosin in a veterinary practice indicated that tylosin persisted in milk for more than 3 days after the final treatment. The concentration of tylosin was not below the stated maximum residue limit (0.05 mg/kg). The milk from 3 cows being treated for mastitis catarrhalis chronica contained tylosin residues for 3.5 days after the last withdrawal time (72 h). No residue was detected in the milk of any animal 6 days after cessation of therapy.
Dudriková
E
E
University of Veterinary Medicine, Department of Food Hygiene and Technology, Kosice, The Slovak Republic.
Jozef
S
S
Jozef
N
N
D000818:Animals; D000900:Anti-Bacterial Agents / Q000032:analysis* / Q000627:therapeutic use; D002417:Cattle; D002853:Chromatography, Liquid / Q000379:methods*; D004350:Drug Residues / Q000032:analysis*; D005260:Female; D007700:Kinetics; D008414:Mastitis, Bovine / Q000188:drug therapy*; D008892:Milk / Q000737:chemistry*; D015645:Tylosin / Q000032:analysis* / Q000627:therapeutic use
D000900:Anti-Bacterial Agents; D015645:Tylosin