Dust generated by cattle movement in feedlots causes respiratory disease that affects the welfare of millions of cattle annually, with management practices including irrigation, windbreaks, and pen design able to significantly reduce the problem.
Bovine respiratory disease causes significant suffering: fever, nasal discharge, coughing, difficulty breathing, and in severe cases, fatal pneumonia. Animals with BRD show reduced feed intake, lethargy, and isolation from the herd - clear welfare indicators. The chronic dust environment of poorly managed feedlots creates ongoing respiratory irritation even in animals that do not develop clinical disease. Management interventions that reduce dust are effective and economically justified through reduced treatment costs and mortality - a rare case where welfare improvement and economic incentive align. Better pen design, surface management, and vaccination programs can substantially reduce BRD burden.