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Improving Stall Design: Use of 3-D Kinematics to Measure Space Use by Dairy Cows when Lying Down

¹ Animal Welfare Program and
² School of Human Kinetics, The University of British Columbia, Vancouver, BC, Canada
³ Dairy and Swine Research and Development Centre, Agriculture and Agri-Food Canada, Lennoxville, QC, Canada

Corresponding author: D. M. Weary; e-mail: danweary{at}interchange.ubc.ca.

Uncomfortable stalls reduce the time cows spend resting and are a risk factor for lameness. Although recommendations for stall dimensions are available, little research supports these recommendations. In this study, kinematic techniques were used to provide the first accurate measures of space used by Holstein dairy cows during lying-down movements in an open space and in a free stall. Cows (n = 5, mean parity 3.2 ± 1.0, body weight = 607 ± 21 kg) used up to 300 cm of longitudinal space when lying down, more than is typically provided by current industry recommendations for stall length. Cows used up to 109 cm of lateral space (180% of hip width), an estimate that is within current recommendations for stall width. During the lying-down movement, maximal lateral displacements at the hip occurred in two vertical zones: one between 95 and 135 cm, and the second less than 50 cm above the lying surface. Maximal longitudinal displacements of the nose were clustered 10 to 30 cm above the surface. These heights should be taken into account when designing and positioning stall partitions. Maximum instantaneous velocity of body markers approached 220 cm/s, indicating that cows can contact inappropriately placed stall partitions and the lying surface with considerable force. Kinematic techniques are promising ways of assessing spatial requirements of cattle to improve stall design. Further work is required to assess a wider range of cow sizes and stall configurations.

Key Words: stall design • kinematics • lying movement • dairy cow

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