The effect of lameness on lying behaviour of zero grazed Holstein dairy cattle
The effect of lameness on lying behaviour of zero grazed Holstein dairy cattle
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DOI：
10.1016/j.applanim.2011.08.004
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发表时间：
2011-11-15
影响因子：
2.3
通讯作者：
Scaife, Jes
中科院分区：
文献类型：
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作者：
Blackie, Nicola;Amory, Jonathan;Scaife, Jes
本研究探讨了慢性跛行的影响，其中动物保持相同的运动评分连续3个月对奶牛的躺卧behaviors.The 59泌乳荷斯坦奶牛招募的研究，分组根据运动评分（LS），其中低分数表示正常步态。使用LS-1（n = 16）、LS-2（n = 21）和LS-3（n = 22）。运动评分组在产次和泌乳阶段之间保持平衡。使用IceTagn（TM）监测仪连续4天测量奶牛的说谎行为。奶牛被饲养在带有凹槽混凝土地板的家庭围栏中。所有数据均呈正态分布，并使用单因素方差分析和事后Tukey检验进行评估。与非跛行（LS-1或LS-2）奶牛相比，跛行奶牛（LS-3）躺下的时间显著更长（分别为13 h/d vs. 10.9 h/d），同时站立时间显著减少。当在一天中分解行为并与管理因素一起进行评估时，注意到跛脚奶牛对推高饲料的反应较小，并且发现更多跛脚奶牛在凌晨站立，可能是为了避免资源冲突。同样，跛行和非跛行奶牛之间的躺卧时间差异仅在夜间（16：01-23：00）有显著差异。（C）2011 Elsevier B. V.保留所有权利。
The present study examines the impact of chronic lameness, where animals remained the same locomotion score for 3 consecutive months on lying behaviour of dairy cattle.The 59 lactating Holstein dairy cows recruited to the study, were grouped according to locomotion score (LS) where low scores indicate normal gait. LS-1 (n = 16), LS-2 (n = 21) and LS-3 (n = 22) were used. Locomotion score groups were balanced for parity and stage of lactation. Lying behaviour was measured using IceTagn(TM) monitors which were attached cow for 4 consecutive days. Cows were maintained in their home pen with grooved concrete flooring. All data were normally distributed and were assessed using a one-way ANOVA with post hoc Tukey test.The lame cows (LS-3) spent significantly longer lying down compared to non-lame (LS-1 or LS-2) cows (13 h/day vs. 10.9 h/day, respectively), this was accompanied by significantly reduced standing times. When the behaviour was broken down over the day and evaluated alongside management factors it was noted that the lame cows were less reactive to feed being pushed up and more of the lame cows were found to be standing up in the early hours of the morning, possibly to avoid conflict over resources. Similarly, the differences in lying times between lame and non-lame cows only differed significantly in the evening period (16:01-23:00). (C )2011 Elsevier B.V. All rights reserved.