Northwest and Allee Research and Demonstration Farm
There is growing demand in Iowa for pigs raised outdoors or in a deep-bedded system without the use of antibiotics, growth promotants, or animal by-products. Currently, most producers selling naturally raised pork market their animals to a company that requires adherence to the Animal Welfare Institute’s (AWI) Animal Welfare Standards. One of the key components of these standards is the prohibition of farrowing crates. While a pasture farrowing system is effective during spring, summer, and fall, an alternative system is needed to farrow pigs in the winter for the naturally raised pork market.
Iowa State University
Lammers, Peter J.; Honeyman, Mark S.; and Harmon, Jay D., "Alternative Winter Farrowing Demonstration Project: Two-Year Summary" (2005). Iowa State Research Farm Progress Reports. 1280.