Antimicrobial residues in cows milk treated by combination therapy
What is it about?
Cows with clinical mastitis were included in the study. Cows were treated with combination of antimicrobial drugs (extra label use) for clinical mastitis on a commercial dairy farm. Antimicrobial residues were tested after the prescribed withdrawal period in milk from infected/treated and healthy udder quarters.
Why is it important?
Intramammarily treated mastitic cows with impaired health had high concentrations of antimicrobial residues in milk after the withdrawal period. After the prescribed withdrawal period residues of tetracycline, neomycine, cefquinome and cephalexin were still above the MRL in some cases. Milk from untreated healthy udder quarters had no antimicrobial residues two milkings before the prescribed withdrawal period.
The following have contributed to this page: ksenija Šinigoj Gačnik