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Treatment of naturally occurring sheep scab (Psoroptes ovis infestation) in the United Kingdom with ivermectin
  1. ND Sargison,
  2. PR Scott,
  3. CD Penny and
  4. RS Pirie
  1. Department of Veterinary Clinical Studies, Royal (Dick) School of Veterinary Studies, Roslin, Midlothian.


An outbreak of naturally occurring sheep scab in a flock of 207 sheep was successfully treated with three consecutive weekly subcutaneous injections of ivermectin at a dose rate of 200 micrograms/kg. Plunge dipping ewes during early pregnancy was not considered appropriate on welfare grounds.

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