Kinematic changes in dairy cows with induced hindlimb lameness: transferring methodology from the field of equine biomechanics

IF 4 2区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE Animal Pub Date : 2024-09-01 DOI:10.1016/j.animal.2024.101269
A. Leclercq , K. Ask , Y. Mellbin , A. Byström , F.M. Serra Bragança , M. Söderlind , E. Telezhenko , C. Bergsten , P. Haubro Andersen , M. Rhodin , E. Hernlund
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Abstract

Lameness is a common issue on dairy farms, with serious implications for economy and animal welfare. Affected animals may be overlooked until their condition becomes severe. Thus, improved lameness detection methods are needed. In this study, we describe kinematic changes in dairy cows with induced, mild to moderate hindlimb lameness in detail using a “whole-body approach”. Thereby, we aimed to identify explicable features to discriminate between lame and non-lame animals for use in future automated surveillance systems. For this purpose, we induced a mild to moderate and fully reversible hindlimb lameness in 16 dairy cows. We obtained 41 straight-line walk measurements (containing > 3 000 stride cycles) using 11 inertial measurement units attached to predefined locations on the cows’ upper body and limbs. One baseline and ≥ 1 induction measurement(s) were obtained from each cow. Thirty-one spatial and temporal parameters related to limb movement and inter-limb coordination, upper body vertical displacement symmetry and range of motion (ROMz), as well as pelvic pitch and roll, were calculated on a stride-by-stride basis. For upper body locations, vertical within-stride movement asymmetry was investigated both by calculating within-stride differences between local extrema, and by a signal decomposition approach. For each parameter, the baseline condition was compared with induction condition in linear mixed−effect models, while accounting for stride duration. Significant difference between baseline and induction condition was seen for 23 out of 31 kinematic parameters. Lameness induction was associated with decreased maximum protraction (−5.8%) and retraction (−3.7%) angles of the distal portion of the induced/non-induced limb respectively. Diagonal and lateral dissociation of foot placement (ratio of stride duration) involving the non-induced limb decreased by 8.8 and 4.4%, while diagonal dissociation involving the induced limb increased by 7.7%. Increased within-stride vertical displacement asymmetry of the poll, neck, withers, thoracolumbar junction (back) and tubera sacrale (TS) were seen. This was most notable for the back and poll, where a 40 and 24% increase of the first harmonic amplitude (asymmetric component) and 27 and 14% decrease of the second harmonic amplitude (symmetric component) of vertical displacement were seen. ROMz increased in all these landmarks except for TS. Changes in pelvic roll main components, but not in the range of motion of either pitch or roll angle per stride, were seen. Thus, we identified several kinematic features which may be used in future surveillance systems. Further studies are needed to determine their usefulness in realistic conditions, and to implement methods on farms.

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诱发后肢跛行的奶牛的运动学变化:从马匹生物力学领域借鉴方法论
跛足是奶牛场的常见问题,对经济和动物福利都有严重影响。受影响的动物可能会被忽视,直到病情变得严重。因此,需要改进跛足检测方法。在本研究中,我们采用 "全身方法 "详细描述了患有诱发性轻度至中度后肢跛行的奶牛的运动学变化。因此,我们旨在找出可解释的特征,以区分跛足和非跛足动物,供未来的自动监控系统使用。为此,我们对 16 头奶牛进行了轻度至中度、完全可逆的后肢跛行诱导。我们在奶牛上身和四肢的预定位置安装了 11 个惯性测量单元,获得了 41 次直线行走测量结果(包含 > 3 000 步周期)。每头奶牛都进行了一次基线测量和≥一次诱导测量。以每步为基础,计算与肢体运动和肢体间协调、上半身垂直位移对称性和运动范围(ROMz)以及骨盆俯仰和滚动有关的 31 个空间和时间参数。对于上半身位置,通过计算局部极值之间的步内差异和信号分解方法,研究了步内垂直运动的不对称性。对于每个参数,在线性混合效应模型中将基线条件与诱导条件进行比较,同时考虑步长。在 31 个运动学参数中,有 23 个在基线与诱导状态之间存在显著差异。跛行诱导与诱导肢体/非诱导肢体远端最大前伸角度(-5.8%)和后缩角度(-3.7%)的减小有关。非诱导肢的对角线和侧向脚位分离(步长比)分别减少了 8.8% 和 4.4%,而诱导肢的对角线分离则增加了 7.7%。可见,马蹄、颈部、腰部、胸腰交界处(背部)和骶尾部(TS)的步内垂直位移不对称性增加。最明显的是背部和马鞍,垂直位移的第一次谐波振幅(不对称成分)分别增加了 40% 和 24%,第二次谐波振幅(对称成分)分别减少了 27% 和 14%。除 TS 外,所有这些地标中的 ROMz 都有所增加。骨盆滚动的主要成分发生了变化,但每步的俯仰角或滚动角的运动范围没有变化。因此,我们发现了一些运动学特征,可用于未来的监测系统。要确定这些特征在现实条件下的实用性,并在农场实施相关方法,还需要进一步的研究。
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来源期刊
Animal
Animal 农林科学-奶制品与动物科学
CiteScore
7.50
自引率
2.80%
发文量
246
审稿时长
3 months
期刊介绍: Editorial board animal attracts the best research in animal biology and animal systems from across the spectrum of the agricultural, biomedical, and environmental sciences. It is the central element in an exciting collaboration between the British Society of Animal Science (BSAS), Institut National de la Recherche Agronomique (INRA) and the European Federation of Animal Science (EAAP) and represents a merging of three scientific journals: Animal Science; Animal Research; Reproduction, Nutrition, Development. animal publishes original cutting-edge research, ''hot'' topics and horizon-scanning reviews on animal-related aspects of the life sciences at the molecular, cellular, organ, whole animal and production system levels. The main subject areas include: breeding and genetics; nutrition; physiology and functional biology of systems; behaviour, health and welfare; farming systems, environmental impact and climate change; product quality, human health and well-being. Animal models and papers dealing with the integration of research between these topics and their impact on the environment and people are particularly welcome.
期刊最新文献
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