Pork Industry. From piglets to production the pork industry in Ontario has increased since 1976 to present. Pork industry has increased from 1 million head in 1976 to approximately 1.8 million head in Ontario on April 1, 2002. Information about why this increase and how pork industry is done will be found in this five-page paper. Pages: 5 Bibliography: 5 source(s) listed Filename: 19177 Pork Industry Piglets.doc Price: 44.75