A. De Vries and J. K. Reneau production systems Application of statistical process control charts to monitor changes in animal doi: 10.2527/jas.2009-2622 originally published online Jan 15, 2010; 2010.88:E11-E24. J Anim Sci http://jas.fass.org/cgi/content/full/88/13_electronic_suppl/E11 the World Wide Web at: The online version of this article, along with updated information and services, is located on www.asas.org by on May 10, 2011. jas.fass.org Downloaded from