Sheep (England): Code of Recommendations for the Welfare of Livestock (PB5162)

Health: Internal Parasites


  1. Internal parasites should be controlled by grazing management and/or anthelmintic treatment administered at appropriate times based upon the life cycle of the parasite. Advice on appropriate timing, and steps to avoid the development of anthelmintic-resistant worms, should be sought from a veterinary surgeon or specialist adviser.
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