Preventing Antibiotics In Your Milk
Since residues in milk can be traced back to improper use of antibiotics at the farm, producers must ensure that necessary precautions are taken when treating livestock with antibiotics.
Procedures to follow
Steps to take if you have mistakenly milked a treated animal
If you have milked a treated animal and suspect the milk has entered the bulk tank:
Test if you Suspect
If you are uncertain about antibiotics in your milk, have it tested before shipping. Test kits specifically for goat milk are available for the -lactam (beta-lactam), tetracycline and sulfonamide families of drugs. Each test has its own benefits and limitations in cost, speed, sensitivity and efficacy. (Note that some test kits are approved for bovine milk only - not goat milk - and may produce inaccurate test results.)
Testing services are available from veterinarian clinics, some processors and the Agriculture and Food Laboratory, University of Guelph at 1-519-767-6299 (Toll Free at 1-877-863-4235) or visit their website.
The major suppliers of test kits for the North American dairy goat market are CHARM Sciences and Idexx Laboratories. For information on test kits and ordering, visit: www.idexx.com/view/xhtml/en_us/dairy/dairy-testing.jsf
Figure 1: Snap test kit
A positive inhibitor test result may also be caused by:
For more information on what you can do to prevent antibiotics from ending up in your bulk tank of milk, refer to the fact sheet Troubleshooting Antibiotic Residues in Goat Milk on the OMAFRA website (search 'antibiotic residues') or contact your Raw Milk Specialist.
For more information:
Toll Free: 1-877-424-1300