Swayback and copper supplementation.
D000818:Animals; D003300:Copper / Q000008:administration & dosage / Q000097:blood / Q000627:therapeutic use*; D005527:Food, Fortified; D012756:Sheep; D012757:Sheep Diseases / Q000188:drug therapy*; D013540:Swayback / Q000097:blood / Q000188:drug therapy*
D003300:Copper