Skin temperature reveals the intensity of acute stress.
Skin temperature reveals the intensity of acute stress.
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DOI：
10.1016/j.physbeh.2015.09.032
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发表时间：
2015-12-01
影响因子：
2.9
通讯作者：
McKeegan DE
中科院分区：
文献类型：
--
作者：
Herborn KA;Graves JL;Jerem P;Evans NP;Nager R;McCafferty DJ;McKeegan DE
急性应激会触发外周血管收缩，导致恒温动物皮肤温度的快速、短期下降。我们第一次测试了这种反应是否有可能量化压力，通过展示与应激源强度的比例。我们使用已建立的行为和激素标记物：活动水平和皮质酮水平，来验证母鸡(Gallus Gallus Home Ticus)的一种温和和更严重的急性束缚应激源。然后，我们使用红外热像仪(IRT)来非侵入性地收集暴露于这两种强度的急性搬运应激后的连续温度测量。在梳子和鸡冠这两个已知具有温度调节作用的皮肤区域，应激源强度预测了最初皮肤降温的程度，也预测了皮肤变暖的延迟发生，从而提供了两个量化压力的机会。由于目前IRT技术的成本效益高，这种非侵入性和持续性的自由动物应激评估方法有可能成为纯粹和应用研究中的常见方法。我们测量了在轻微或更严重的急性应激源下母鸡的皮肤温度。急性应激时体温调节组织温度暂时下降。皮肤温度变化的幅度反映了急性应激源的强度。红外热像仪提供了一种非侵入性的压力评估方法。
Acute stress triggers peripheral vasoconstriction, causing a rapid, short-term drop in skin temperature in homeotherms. We tested, for the first time, whether this response has the potential to quantify stress, by exhibiting proportionality with stressor intensity. We used established behavioural and hormonal markers: activity level and corticosterone level, to validate a mild and more severe form of an acute restraint stressor in hens (Gallus gallus domesticus). We then used infrared thermography (IRT) to non-invasively collect continuous temperature measurements following exposure to these two intensities of acute handling stress. In the comb and wattle, two skin regions with a known thermoregulatory role, stressor intensity predicted the extent of initial skin cooling, and also the occurrence of a more delayed skin warming, providing two opportunities to quantify stress. With the present, cost-effective availability of IRT technology, this non-invasive and continuous method of stress assessment in unrestrained animals has the potential to become common practice in pure and applied research. We measured skin temperature in hens following a mild or more severe acute stressor. The temperature of thermoregulatory tissues temporarily dropped under acute stress. The magnitude of this skin temperature change reflected acute stressor intensity. Infrared thermography offers a non-invasive method of stress assessment.