T. A. Armstrong, C. M. Williams, J. W. Spears and S. S. Schiffman High dietary copper improves odor characteristics of swine waste 2000, 78:859-864. J ANIM SCI http://jas.fass.org/content/78/4/859 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 July 12, 2011 jas.fass.org Downloaded from