Jim Riddle, University of Minnesota
According to the National Organic Program (NOP) final rule (United States Department of Agriculture [USDA], 2000), the use of parasiticides is prohbitied for all organic slaughter stock. When preventative treatments do not prevent infestation, parasiticides may be used for emergency treatment of:
- Breeder stock, when used prior to the last third of gestation, but not during lactation of progeny that are to be sold, labeled, or represented as organically produced; and,
- Dairy stock, when used a minimum of 90 days prior to the production of milk or milk products that are to be sold, labeled, or represented as organic.
At the present time, Ivermectin (CAS# 70288-86-7); Fenbendazole (CAS# 43210-67-9); and Moxidectin (CAS# 113507-06-5) are the only parasiticides on the National List and, therefore, allowed with the restrictions noted above. Fenbendazole can only be used by or on the lawful written order of a licensed veterinarian. Moxidectin can only be used for control of internal parasites.
References and Citations
- United States Department of Agriculture. 2000. National organic program: Final rule. Codified at 7 C.F.R., part 205. (Available online at: http://www.ecfr.gov/cgi-bin/text-idx?SID=a6a0935ddf00e166695f4c2138bd58d8&mc=true&node=pt7.3.205&rgn=div5) (verified 18 March 2010).