A look back at some early swine production systems highlighted in the USDA 1960 Yearbook of Agriculture. 1960 pork production2016-11-082016-11-08https://hog-equipment-and-facilities-hq.com/wp-content/uploads/2018/11/hogslat-nhf-logos-1.pngHogslathttps://hog-equipment-and-facilities-hq.com/wp-content/uploads/2016/11/1960-confine1-1.jpg200px200px