By Haley Zynda, Extension Educator, Agriculture and Natural Resources, Wayne County, Ohio State University ExtensionFun fact, a “disease symptom” is something you are personally feeling, while a “disease sign” is something you observe in someone else or in animals. In order to better score potential disease, it is necessary to understand what a healthy calf looks like, so a sick calf stands out and is appropriately treated. So, what factors need to be observed? Calves