Automatic rotating grooming brushes in dairy cow housing provide self-grooming opportunities that reduce stress, improve social interactions, and generate measurable positive welfare indicators in cows.
Automatic grooming brushes provide dairy cows with an opportunity for self-directed behaviour in an otherwise highly managed environment. Cows in the wild engage in mutual grooming as a social and hygiene behaviour — in housed systems with limited social contact options, self-grooming on a rotating brush partially substitutes for this. The stress-reducing effect of brush use is measurable in cortisol levels and behavioural indicators. Cows that voluntarily and repeatedly use brushes are demonstrating preference — they choose to engage with this enrichment, indicating that it meets a genuine need. The low cost and high welfare impact of grooming brushes makes them one of the most cost-effective welfare investments available to dairy farmers, yet provision remains inconsistent across the sector.