Baker Janice, DeChant Mallory, Jenkins Eileen, Moore George, Kelsey Kathleen, Perry Erin
Veterinary Tactical Group, VTG Canine Sports Medicine and Rehabilitation Clinic, Vass, NC 28394, USA.
Department of Animal Science Food and Nutrition, Southern Illinois University, Carbondale, IL 62901, USA.
Animals (Basel). 2020 Apr 13;10(4):673. doi: 10.3390/ani10040673.
Body temperature responses were recorded during phases of work (waiting-to-work in close proximity to search site, active work in a search site, and post-work recovery crated in vehicle) in human remains detection dogs during search training. State or federally certified human remains detection dogs ( = 8) completed eight iterations of searching across multiple novel search environments to detect numerous scent sources including partial and complete, buried, hidden, or fully visible human remains. Internal temperature (Tgi) of the body was measured continuously using an ingestible thermistor in the gastrointestinal tract. Mean total phase times were: waiting-to-work: 9.17 min (±2.27); active work: 8:58 min (±2:49); and post-work recovery: 24:04 min (±10.59). Tgi was impacted by phase of work ( < 0.001) with a small increase during active work, with mean peak temperature 39.4 °C (±0.34 °C) during that period. Tgi continued to increase for a mean of 6:37 (±6:04) min into the post-work recovery phase in the handler's vehicle with a mean peak Tgi of 39.66 °C (±0.41 °C). No significant increase in temperature was measured during the waiting-to-work phase, suggesting behaviors typical of anticipation of work did not appear to contribute to overall body temperature increase during the waiting-to-work recovery cycle. Continued increase of gastrointestinal body temperature several minutes after cessation of exercise indicates that risk of heat injury does not immediately stop when the dog stops exercising, although none of the dogs in this study reached clinically concerning body temperatures or displayed any behavioral signs suggestive of pending heat injury. More work is needed to better understand the impact of vehicle crating on post-work recovery temperatures in dogs.
在搜索训练期间，记录了人类遗骸探测犬在工作阶段（在搜索地点附近等待工作、在搜索地点进行实际搜索工作以及在车辆中进行工作后恢复）的体温反应。州或联邦认证的人类遗骸探测犬（ = 8）在多个新颖的搜索环境中完成了八次搜索迭代，以检测多种气味源，包括部分和完整的、掩埋的、隐藏的或完全可见的人类遗骸。使用胃肠道内可摄入的热敏电阻连续测量身体的内部温度（Tgi）。各阶段的平均总时长分别为：等待工作阶段：9.17分钟（±2.27）；实际搜索工作阶段：8:58分钟（±2:49）；工作后恢复阶段：24:04分钟（±10.59）。Tgi受工作阶段的影响（ < 0.001），在实际搜索工作期间略有升高，该期间平均峰值温度为39.4°C（±0.34°C）。在训导员的车辆中，Tgi在工作后恢复阶段平均持续升高6:37（±6:04）分钟，平均峰值Tgi为39.66°C（±0.41°C）。在等待工作阶段未测得温度显著升高，这表明等待工作时典型的预期行为似乎并未导致等待工作恢复周期期间的总体体温升高。运动停止数分钟后胃肠道体温持续升高，这表明当狗停止运动时，热损伤风险不会立即停止，尽管本研究中的狗均未达到临床关注的体温，也未表现出任何提示即将发生热损伤的行为迹象。需要开展更多工作，以更好地了解车辆装箱对狗工作后恢复体温的影响。
