Automatic cattle brushes, access to outdoor exercise, and environmental enrichment improve dairy cow welfare by allowing natural behaviors and positive affective states that are suppressed in barren housing systems.
Dairy cow welfare is not simply the absence of negative states — it includes positive affective states like comfort, play, and social satisfaction that are suppressed in barren, restricted environments. Automatic brushes are a low-cost enrichment that cows seek out voluntarily, demonstrating that these animals have preferences and seek positive experiences. Welfare programs that include positive welfare indicators alongside the absence of disease and injury provide a more complete picture of cow quality of life.