Key, Nigel (contributor); McBride, William D. (contributor) - 2007
size and specialization of hog operations reflect structural change in U.S.
swine production during the past 15 years. The … contract
production expanded in those areas.
Productivity gains - Structural change in the industry coincided with
substantial … operations reflect significant
structural change in U.S. swine production during the past two decades.
Once dominated by small …