Dr. Donald C. Lay Jr. - Pain: Abolishing a Necessary Evil


Pain: Abolishing a Necessary Evil - Donald C. Lay Jr., PhD, Research Leader, Livestock Behavior Research Unit, USDA, from the 2014 NIAA Annual Conference titled The Precautionary Principle: How Agriculture Will Thrive, March 31 - April 2, 2014, Omaha, NE, USA.