As of May 16, 2012, the rule allows the use of two parasiticides – Fenbendazole and Moxidectin – for use in organic livestock as emergency treatment for dairy and breeder stock when approved preventive management practices fail to prevent parasite infection. These parasiticides will not be allowed for organic slaughter stock. Milk and milk products from treated organic animal may not be labeled as organic for 90 days following treatment.
The USDA regulation prohibits the routine use of synthetic parasiticides. Organic livestock producers are responsible for managing parasites through practices identified in the Organic System Plan (Production Plan).
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