“The Cull Breeding Swine Program was originally designed to help the industry restructure by facilitating the reduction of Canada’s swine breeding herd (sows, boars and pregnant gilts) by approximately 10 per cent,” says Jurgen Preugschas, President of the Canadian Pork Council.
http://www.cpc-ccp.com/documents/FINAL-CPCCBSPnewrelease_2_.pdf