n :  removal of excess loose skin from either side of the crutch of a sheep to reduce the incidence of blowfly strike
 
Mules, J. H. W., Australian sheep grazier. Mules, a grazier at Woodside, South Australia, first proposed the Mules operation in 1931. Since that time the operation has become a standard procedure especially in Australia and New Zealand.
 
 
 
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