论文标题
新生犊牛中24小时昼夜节律的周期性强度显示了牛群福利的指标
Periodicity Intensity of the 24 h Circadian Rhythm in Newborn Calves Show Indicators of Herd Welfare
论文作者
论文摘要
昼夜节律是睡眠效果周期的一个过程，可调节所有生物的身体，精神和行为变化，大约为24小时。可穿戴加速度计通常用于牲畜应用中，以记录动物运动，我们可以从中估算活动类型。在这里，我们使用了在新生犊牛脖子上戴的加速度计记录的整体运动，为期8周。从移动数据中，我们从7天的窗口中计算出与昼夜节律相对应的24小时周期强度，该窗口滑过多达8周的数据记录。随着犊牛的年龄较大，每隔时间计算24小时周期性的强度或强度，这是单个小腿福利的指标。我们观察到，这24小时的个人犊牛的强度是从运动数据得出的，在19个犊牛的牛群中同步增加和减少。我们的结果表明，可以通过以这种方式处理和可视化运动数据来观察到影响牛群福利的外部因素，而我们的方法揭示了单独移动数据无法观察到的见解。
Circadian rhythms are a process of the sleep-wake cycle that regulates the physical, mental and behavioural changes in all living beings with a period of roughly 24 h. Wearable accelerometers are typically used in livestock applications to record animal movement from which we can estimate the activity type. Here, we use the overall movement recorded by accelerometers worn on the necks of newborn calves for a period of 8 weeks. From the movement data, we calculate 24 h periodicity intensities corresponding to circadian rhythms, from a 7-day window that slides through up to 8-weeks of data logging. The strength or intensity of the 24 h periodicity is computed at intervals as the calves become older, which is an indicator of individual calf welfare. We observe that the intensities of these 24 h periodicities for individual calves, derived from movement data, increase and decrease synchronously in a herd of 19 calves. Our results show that external factors affecting the welfare of the herd can be observed by processing and visualising movement data in this way and our method reveals insights that are not observable from movement data alone.
