Castration will have to be carried out by non-ring method at marking and tails left on. It is vital that basic biosecurity requirements are both understood and implemented. Contact with people, vehicles and equipment are the main sources of risk. The dedicated shepherd and vehicle is the best line of defence. Power-hosing must only be used in conjunction with disinfectant otherwise it only acts as a good distributor of virus aerosols in most cases spraying with disinfectant is adequate providing it is thorough.
Dogs are a potential problem .