经典马术马匹生理状况和运动后的热成像分析

Guilherme Gonçalves Costa, Roberta Passini
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引用次数: 0

摘要

很少有研究将马匹皮肤温度与热环境、生理和运动联系起来。本研究旨在利用红外热成像技术分析马匹在训练期间的体温调节情况,以及洗澡时间在恢复正常生理状态方面的效率。研究采用完全随机设计,共设 2 个处理和 6 个重复。处理为运动后不同的洗澡时间:BE - 运动前(对照组 - 静止动物);T2 - 运动后 2 分钟淋浴;T5 - 运动后 5 分钟淋浴。研究对象为六匹巴西运动马(BH)和六匹纯血马(TB),它们的平均年龄和体重分别为 8.5 岁和 415 千克。在跳跃训练前、沐浴前(训练后)和沐浴后的 3 个非连续日的 13:00 至 15:00 期间收集了各种变量。环境变量(湿球温度、黑球温度、相对空气湿度和干球温度)是在外部(跑道)和内部(浴室)环境中测定的。计算了热舒适指数:温度和湿度指数(THI)、黑球温度和湿度指数(BGHI)。还收集了直肠温度、呼吸频率和体表温度。在训练前后和洗澡前后,直肠温度、呼吸频率和体表温度都有明显的影响(P<0.05)。约 50 分钟的训练提高了呼吸频率以及直肠和皮肤温度。2分钟或5分钟的沐浴时间可使动物的呼吸频率和皮肤温度降低到低于训练前的水平。即使在洗澡后,动物的直肠温度仍然很高,这表明与其他变量相比,动物的恢复时间有所延迟。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Thermographic analysis of physiological conditions and after exercise in classic equestrian horses
Few studies have associated horse skin temperature with the thermal environment, physiology and exercise. This study aimed to use infrared thermography to analyze thermoregulation in horses during training and the efficiency of bathing time in restoring normal physiological conditions. A completely randomized design was used, with 2 treatments and 6 replications. The treatments were different bathing times, after exercise: BE – Before exercise (Control – resting animal); T2 – 2-minute shower, after exercise; T5 – 5-minute shower, after exercise. Six Brazilian Sport (BH) and six Thoroughbred (TB) horses were studied, with average age and weight of 8.5 years and 415 kg respectively, ridden over a classic showjumping course for 50 minutes. The variables were collected from 13h00 to 15h00 over 3 nonconsecutive days, before jump training, prior to bathing (post-training) and after bathing. The environmental variables (wet bulb temperature, black globe temperature, relative air humidity and dry bulb temperature) were determined in the external (track) and internal (bathroom) environments. Thermal comfort indexes were calculated: Temperature and Humidity Index (THI), Black Globe Temperature and Humidity Index (BGHI). Were collected the rectal temperature, respiratory rate and body surface temperature. A significant effect was observed for the rectal temperature, respiratory rate and surface temperature (P<0.05) between the pre- and post-training and before and after bathing. Training for around 50 minutes increased respiratory rate as well as rectal and skin temperatures. Bathing times of 2 or 5 minutes promote equivalent reductions in the animals' respiratory rate and skin temperatures, reaching values below those observed before training. The rectal temperature of the animals remained high even after bathing, indicating delayed recovery in relation to the other variables.
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