Certification and Education Programs: Current Status of Farm Animal Welfare
Swine production facilities in the United States have adopted technological advancements in response to problems and opportunities as they arise. The first pressure was due mostly to economics. To improve feed efficiency, animals were moved into climate controlled buildings. To reduce labor costs, manure was handled as a liquid through slatted floors and feed and water systems were automated. Larger buildings were used to gain economy of scale and to increase the overall income to the producer as the profit margin per pig marketed decreased. All of these innovations helped swine producers to more economically produce commodity pork.
Harmon, Jay D.; Honeyman, Mark S.; and Boggess, Mark, "Educational Programs: Alternative Swine Housing Educational Programs" (2005). Agricultural and Biosystems Engineering Conference Proceedings and Presentations. 116.