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Gait and Force Analysis of Provoked Pig Gait on Clean and Fouled Concrete Surfaces

Wachenfelt, Hans von and Pinzke, Stefan and Nilsson, Christer (2009). Gait and Force Analysis of Provoked Pig Gait on Clean and Fouled Concrete Surfaces. Biosystems engineering. 104, 534-544
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Official URL: http://dx.doi.org/10.1016/j.biosystemseng.2009.08....

Abstract

Gait and force analysis have proven to be useful methods in linking claw injuries to surface material conditions. To determine the relationship between claw disorder and floor properties such as friction and surface abrasiveness, the factors controlling gait must be characterised. The effects of fouled concrete floor conditions on the gait of 10 pigs walking in a curve, using kinematics and kinetics to record gait parameters and slip frequency are described and compared with clean conditions. Pigs adapted to fouled floor conditions by reducing their walking speed and stride length, using a higher number of 3-foot support phases and by lowering diagonality. This adaption produced lower vertical forces, a twofold reduction in propulsion and outward stabilisation force and a threefold increase in braking force, without reducing the peak utilised coefficient of friction (UCOF). The UCOF values for both limbs of the curve walking pigs exceeded the recorded dynamic coefficient of friction and the corresponding UCOF values for pigs walking a straight line in fouled floor condition. As UCOF increased and available friction from the fouled floor surface decreased, this resulted in higher forward and backward slip frequency in both limbs for pigs walking in a curve. Pigs provoked to walk in a curve can adapt to fouled floor condition, but if the floor is heavily fouled this adaption is not sufficient to ensure safe walking.

Authors/Creators:Wachenfelt, Hans von and Pinzke, Stefan and Nilsson, Christer
Title:Gait and Force Analysis of Provoked Pig Gait on Clean and Fouled Concrete Surfaces
Series/Journal:Biosystems engineering (1537-5110)
Year of publishing :27 September 2009
Volume:104
Page range:534-544
Publisher:Elsevier Ltd., UK
ISSN:1537-5110
Language:English
Publication Type:Journal article
Refereed:Yes
Full Text Status:Public
Subjects:Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Animal production > Animal nutrition and management
Keywords:pigs , floors, friction, slip, concrete, kinematic, kinetic
URN:NBN:urn:nbn:se:slu:epsilon-4-237
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-4-237
ID Code:4735
Department:(LTJ, LTV) > Rural Buildings and Animal Husbandry (until 121231)
Deposited By: Hans von Wachenfelt
Deposited On:15 Jun 2010 00:00
Metadata Last Modified:07 Jan 2016 10:59

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