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The aim of the present paper was to assess the benefit of targeted selective treatments (TSTs) on milk production and faecal worm egg count, in four commercial dairy sheep farms in southern Italy where animals were exposed to natural infection with gastrointestinal (GI) strongyles. On each farm, three similar groups of 20 animals each were formed and randomly assigned to the following treatments:...
Anthelmintic resistance is recognised as a major problem affecting small ruminant production worldwide and now threatens the sustainability of many of these systems. One method that has been proposed to prolong the efficacy of our current anthelmintics is the maintenance of a parasite population in refugia (unexposed to a drug) which will maintain the genes for susceptibility within the parasite population...
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