Dust exposure in cattle feedlots causes respiratory irritation, inflammation, and increased disease susceptibility. Dust management is a welfare issue that also affects productivity and cattle handler health.
Chronic dust exposure in feedlot cattle represents an underrecognised welfare burden. Unlike acute respiratory disease which presents clinical signs prompting treatment, chronic dust-related respiratory irritation causes subclinical inflammation that impairs lung function and immune response without obvious illness. This increases vulnerability to BRD pathogens and may cause persistent discomfort. The connection between dust management and animal welfare is direct: feedlots with effective dust suppression programmes have lower BRD rates and therefore lower welfare impacts from this major disease. Management approaches that reduce dust include appropriate pen density to reduce traffic-related dust generation, feed moisture management, strategic water application before cattle are moved, and windbreaks that reduce cross-pen dust transport. These measures simultaneously improve cattle welfare and feedlot economics.