N. Canibe, O. Højberg, S. Højsgaard and B. B. Jensen ecology and growth performance of growing pigs Feed physical form and formic acid addition to the feed affect the gastrointestinal 2005, 83:1287-1302. J ANIM SCI http://jas.fass.org/content/83/6/1287 the World Wide Web at: The online version of this article, along with updated information and services, is located on www.asas.org by guest on December 30, 2011 jas.fass.org Downloaded from