Two lambs treated for breech strike by the usual method of clipping away wool around the struck area and the direct application of a synthetic pyrethroid. Two lambs treated for breech strike by the usual method of clipping away wool around the struck area and the direct application of a synthetic pyrethroid. It is not hard to see how strike causes a considerable growth check in growing lambs Richard Wall, and Fiona Lovatt In Practice 2015;37:181-188 Copyright © British Veterinary Association. All rights reserved.