Bovine respiratory disease is the most costly health issue in beef cattle and causes significant welfare harms, with early detection being critical to reducing both suffering and mortality.
BRD causes significant suffering through fever, breathing difficulty, and systemic illness. Clinically affected cattle show depression, reduced feeding, and labored breathing. In severe cases, lung consolidation causes permanent respiratory impairment even after recovery. The welfare impact is amplified by the scale - BRD affects millions of cattle annually in North American feedlots alone. Delays in diagnosis are particularly harmful, as each day of untreated disease allows more severe lung damage to develop. Early detection systems that identify subtle behavioral changes before obvious clinical signs appear represent a genuine welfare advance.