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Stå eller ligge: betyr kommunikasjon noe for fødende purker?

机译：站立或躺着：交流对喂奶牛有什么意义吗？

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摘要

Piglet mortality is both reducing animal welfare and production yield. A large part of the pigletmortality is due to crushings by the sow, as a direct effect of the sows posture changes. Bothfrequencies, duration and other quality measures of the sow’s posture changes (e.g. pre-lyingbehavior through communication with piglets) would therefore affect crushings. The purposeof this study is to investigate if and how the sow-piglet communication and the sows posturechange is affected by different pen types, and if this in turn affects piglet mortality.In this study 24 healthy Landrace × Yorkshire sows were included, 12 from a traditional penand 12 from the UMB-pen (a prototype design-pen), with parities from 1-4 (1.8±0.20). Thesows where recorded on video from prepartum and until 12 hours postpartum. The videomaterial was analyzed for sow-piglet communication and postural changes.A significant difference in activity level was found between comparing prepartum, farrowingand postpartum, with multiparous sows showing more posture changes. A significant difference in activity level was found between comparing prepartum, farrowingand postpartum, with multiparous sows showing more posture change prepartum thanprimiparous sows. There were few significant differences between the pens, with only moretime spend on standing to lying in the UMB-pen than in the traditional pen. The postureparameter best explaining crushings in the present study was the averages time the sow spentstanding. Crushing could also be explained by an increased frequency of sitting.Posture changes was also associated with communication. Primiparous sows communicatedmore, and more communication were performed in the UMB-pen. Frequency of standing tolying by the sow was positively correlated with sow-initiated communication, again positivelycorrelated with crushings. But, when investigating communication effects on overall mortality,the best parameters to explain that was actually piglet-initiated. Increased communication bythe piglets reduces mortality, which could both be due to reduced amount of crushings withincreased orientation by the sow, or reduced mortality of other causes, e.g. starvation and hypothermia.
机译：仔猪死亡率既降低了动物福利，又降低了产量。仔猪死亡率的很大一部分是由于母猪的压迫，因为母猪姿势的直接影响发生了变化。因此，母猪姿势改变的频率，持续时间和其他质量指标（例如，通过与仔猪的交流来预先躺下的行为）都会影响压碎。本研究的目的是研究不同类型的围栏是否以及如何影响母猪-仔猪的交流和母猪的体态变化，以及这又是否会影响仔猪的死亡率。在本研究中，纳入了24头健康的Landrace×Yorkshire母猪，其中12头来自母猪。 UMB钢笔（原型钢笔）中的传统penand 12，奇偶校验为1-4（1.8±0.20）。母猪从产前到产后12小时录制在视频中。对视频材料进行了母猪-小猪间的交流和体位变化的分析。比较产前，产后和产后的活动水平有显着差异，多胎母猪的姿势变化更大。比较产前，分娩和产后的活动水平有显着差异，多胎母猪产前姿势变化多于初产母猪。笔之间几乎没有显着差异，与传统笔相比，躺在UMB笔上的时间花费更多。在本研究中，最能解释压碎的姿势参数是母猪的平均停留时间。坐姿的增加也可以解释为压碎。姿势的改变也与交流有关。初生母猪之间的交流更多，并且在UMB围栏中进行了更多的交流。母猪站立的频率与母猪发起的交流呈正相关，再次与压碎呈正相关。但是，在调查交流对总体死亡率的影响时，解释该现象的最佳参数实际上是仔猪引发的。仔猪之间的交流增加会降低死亡率，这可能是由于母猪在定向增加范围内压碎的数量减少，或者是其他原因（例如猪瘟）导致的死亡率降低。饥饿和体温过低。

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    Endrestøl Anders;

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  • 年度 2015
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