Guidelines on the Disease during the Conversion Period

• During the first year of the conversion period, regular faecal samples should be taken from the calves to determine the worm burden on the farm. Work out a plan with the named veterinary surgeon to reduce the dependency on anthelmintics during the conversion period as part of the overall health plan (see: Control).

• Faecal samples should also be taken after treatment with an anthelmintic to test the efficacy of the drench used and establish whether there is anthelmintic resistance on the farm.