Normal behavior of pastured hogs

Rodale Institute is performing an inexpensive (by research standards) study on the natural behavior of pastured pigs. Pigs on concrete are subjected to items such as nose rings (to stop rooting behavior) and small crates (to minimize the chance of sows injuring or crushing piglets). There is no good record of exactly what is normal behavior of a pig in normal surroundings. By quantifying normal behaviors in pigs on pastures, they can lend insight into better facilities for confined pigs, as well as what is needed for pigs raised in natural surroundings seen in sustainable agriculture.