Dairy Drug Residue Information
Accidental antibiotic drug residues can result from a number of circumstances. Most incidents fall in four categories, which could be prevented with proper care and precautions. The following list is an overview of the most common sources of drug residue contamination by category.
IMPROPER CLEANING
milked a treated cow into a bucket, but did not rinse the claw and teat cup
rinsed weigh jar and line improperly after milking a treated cow
milked a treated cow into a bucket and continued to use the bucket without rinsing
cross-contaminated calf medication: hands, buckets, mixed milk in milking parlor
MILKING A TREATED COW
milked a treated cow that had lost a leg band
forgot to identify treated cow that was milked next milking
placed milker on treated cow, realized mistake and took milker off quickly, but did not rinse
treated dry cow that did not get moved out of pen before next milking
milked a treated cow into tank instead of bucket; forgot to switch hoses
milker overlooked marking of a treated cow that was identified with chalk
cattle hauler stopped on way to a sale to water and milk cow; hauler said cow was not treated and milked her into the tank
IMPROPER DRUG USE
intermammary infusion of Exenel
contaminated needle used to reconstitute Naxcel
contaminated needle used for intermammary infusion of saline
EQUIPMENT
overflow bucket used to milk treated cow overflowed into pipeline