title: Infestation potential of Psoroptes ovis (Hering) from cattle injected with ivermectin.
abstract: Cattle scabies mites, Psoroptes ovis (Hering), surviving on cattle injected subcutaneously with ivermectin were capable of infesting to unprotected cattle 3, 5, 7, and 9 days after injection. All recipient cattle exposed to mites from vehicle-injected cattle developed reproductive colonies in 5 weeks. All recipient cattle exposed to mites from ivermectin-injected cattle at 3 and 5 days after injection developed reproductive colonies in 5 weeks. By 8 weeks, 3 of 4 and 2 of 4 recipient cattle exposed to mites from ivermectin-injected cattle 7 and 9 days after injection, respectively, developed reproductive colonies. To prevent the spread of mites, injected cattle should be isolated from uninfested cattle for longer than 9 days.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000188:drug therapy* / Q000469:parasitology / Q000635:transmission; D005260:Female; D007306:Insecticides / Q000494:pharmacology / Q000627:therapeutic use*; D007559:Ivermectin; D007783:Lactones / Q000494:pharmacology / Q000627:therapeutic use*; D008924:Mite Infestations / Q000188:drug therapy / Q000469:parasitology / Q000635:transmission / Q000662:veterinary*; D008925:Mites / Q000187:drug effects*
chemical_list: D007306:Insecticides; D007783:Lactones; D007559:Ivermectin