In the processing of pig carcasses after slaughter the scapulae are removed mechanically. It is economically important to minimize the proportion of fractures (2 to 4%) that occur during this operation. The incidence of fractures in several hundred scapulae was investigated with a strain testing machine modified to simulate production-line techniques. The proportion of fractures occurring on the line was consistent with the relationship between the standard force employed and the standard deviation of the normal variation of the fracture load about its mean. In an attempt to raise the mean fracture load by reducing the maximum contact stress, the contact radius of the withdrawing tool was increased; this did not significantly change the mean fracture load but significantly decreased its variation.