Disease Management

As a prey species, chickens are stoic and typically suppress signs of weakness, including when they are sick. It is difficult to detect sick chickens because they rarely show signs of illness before it becomes severe. Chickens also instinctually hide sickness behavior in the presence of a perceived threat, such as humans, because such behavior tells predators that the ill chicken may be an easy meal (Figure 1; Tizard, 2008). While sickness is mainly associated with pathogenic disease, sickness behavior can also result from injury, nutrient deficiency, and environmental stressors, such as thermal stress. Authors: Ashlyn Snyder, Dr. Jon Moyle, and Dr.Shawna Weimer; Title: Sickness Behavior in Chickens (FS-1178)

Infectious Coryza (IC) is a rapidly spreading respiratory disease that mainly affects chickens and, occasionally, pheasants and Guinea fowl of all ages. Currently, there is an ongoing outbreak in some poultry flocks in the northeastern U.S. This publication addresses the most frequently asked questions about IC and how to prevent and control it. Authors: Mostafa Ghanem and Nathaniel Tablante; Title: Infectious Coryza (IC): Frequently asked questions (FAQs) (FS-1131)