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Quantification of Drosophila melanogaster Grooming Behavior for Evaluation of Excessive Grooming Phenotypes
Published on: March 21, 2025
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Cows are highly motivated to access a grooming substrate
Emilie McConnachie1, Anne Marieke C Smid1, Alexander J Thompson1
1Animal Welfare Program, University of British Columbia, 2357 Main Mall, Vancouver, British Columbia, Canada V6T1Z6.
Biology Letters
|August 10, 2018
Summary
Dairy cows show strong motivation to use automated mechanical brushes for grooming, similar to their drive for accessing feed. This indicates brushes are an important resource for improving welfare in indoor housing systems.
Area of Science:
- Animal Science
- Animal Welfare
- Behavioral Science
Background:
- Cattle naturally groom using abrasive surfaces, a behavior often restricted in modern indoor housing.
- Lack of appropriate grooming substrates in indoor dairy systems impacts animal well-being.
Purpose of the Study:
- To assess dairy cows' motivation to access an automated mechanical brush as a grooming resource.
- To evaluate the potential of mechanical brushes for improving indoor cattle housing.
Main Methods:
- Cows were trained to push a weighted gate to access resources: a mechanical brush, fresh feed (positive control), or an empty space (negative control).
- Gate weight was incrementally increased to determine the maximum effort cows would exert for each resource.
- Motivation was analyzed using Kaplan-Meier survival analysis.
Main Results:
- Cows demonstrated high motivation to access the mechanical brush, working as hard for it as they did for fresh feed.
- Motivation to access the brush was significantly higher than for the empty space.
- Results indicate cows highly value the mechanical brush as a resource.
Conclusions:
- Automated mechanical brushes are a valuable resource for dairy cows in indoor housing.
- Implementing these brushes can help meet the grooming needs of cattle, enhancing their welfare.
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