No. There are several checks and balances in place on the farm and at the processing plant, where Canadian milk must test negative for antibiotics before it is unloaded from the milk truck. Prior to this, on the farm, when a veterinarian prescribes an antibiotic for a dairy cow that requires treatment, that cow’s milk is separated from the rest of the herd’s milk, and it is discarded until she is healthy and a bit of time after. Sensitive tests are performed at the processing plants, and if tests detect antibiotic residues, the entire load of milk is rejected and properly discarded. In the rare cases when this happens, the farmer responsible is traced back and penalized with a fine, paying for the value of all the milk in the truck and costs related to disposal of the milk.