Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 495062
Title A new technique using roentgen stereophotogrammetry to measure changes in the spatial conformation of bovine hind claws in response to external loads
Author(s) Ouweltjes, W.; Gussekloo, S.W.S.; Spoor, C.W.; Leeuwen, J.L. van
Source The Veterinary Journal 208 (2016). - ISSN 1090-0233 - p. 81 - 86.
DOI http://dx.doi.org/10.1016/j.tvjl.2015.07.010
Department(s) Experimental Zoology
WIAS
Publication type Refereed Article in a scientific journal
Publication year 2016
Abstract Claw and locomotion problems are widespread in ungulates. Although it is presumed that mechanical
overload is an important contributor to claw tissue damage and impaired locomotion, deformation and
claw injury as a result of mechanical loading has been poorly quantified and, as a result, practical solutions
to reduce such lesions have been established mostly through trial and error. In this study, an
experimental technique was developed that allowed the measurement under controlled loading regimes
of minute deformations in the lower limbs of dissected specimens from large ungulates. Roentgen
stereophotogrammetric analysis (RSA) was applied to obtain 3D marker coordinates with an accuracy
of up to 0.1 mm with optimal contrast and to determine changes in the spatial conformation. A force
plate was used to record the applied forces in three dimensions.
The results obtained for a test sample (cattle hind leg) under three loading conditions showed that
small load-induced deformations and translations as well as small changes in centres of force application
could be measured. Accuracy of the order of 0.2–0.3mm was feasible under practical circumstances
with suboptimal contrast. These quantifications of claw deformation during loading improve understanding
of the spatial strain distribution as a result of external loading and the risks of tissue overload.
The method promises to be useful in determining load–deformation relationships for a wide variety of
specimens and circumstances.
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