运输是一种压力源,会导致牲畜的生理和代谢失衡,导致应激引起的高热。在水牛中,关于动员期间动物热状态的研究很少。因此,本研究旨在比较1516只水牛在15次短途旅行中使用红外热成像(IRT)的热响应(783只动物,60,291条记录,平均持续时间=50.33分钟±5.48分钟)和14次长途旅行(733只动物,56,441条记录,平均持续时间=13.31h±47.32min)。评估了11个区域的表面温度(眼周,泪滴,鼻部,下眼睑,耳廓,额叶-顶叶,骨盆肢体,躯干,腹部,腰椎,和胸部)从牧场到运输后的七个阶段。发现眼周的表面温度,泪滴,鼻部,耳廓,额叶-顶叶,骨盆肢体,躯干,腹部,腰椎,与LJs相比,SJs(3°C)期间的胸部区域明显更高(p<0.0001)。特别是,两组的额叶-顶区在运输后阶段有10°C的显着增加(p<0.0001),记录此阶段的最高温度。同样,发现不同区域之间存在强烈的正相关(r=0.90,p<0.0001)。值得一提的是,放牧,加载,pre,运输后阶段是记录到最大热响应的阶段,可能是由于人类互动的影响。最后,眼周之间存在强正相关(r大于0.9,p>0.001),泪滴,耳廓,骨盆肢体被发现.根据结果,SJ可以被认为是阻碍热生成的压力事件,与LJ相反。
Transport is a stressor that can cause physiological and metabolic imbalances in livestock, resulting in stress-induced hyperthermia. In water buffaloes, studies regarding the thermal state of animals during mobilization are scarce. Therefore, this study aimed to compare the thermal response of 1516 water buffaloes using infrared thermography (IRT) during 15 short trips (783 animals, 60,291 records, average duration = 50.33 min ± 5.48 min) and 14 long trips (733 animals, 56,441 records, average duration = 13.31 h ± 47.32 min). The surface temperature was assessed in 11 regions (periocular, lacrimal caruncle, nasal, lower eyelid, auricular, frontal-parietal, pelvic limb, torso, abdominal, lumbar, and thoracic) during seven phases from pasture to post-transport. It was found that the surface temperature of the periocular, lacrimal caruncle, nasal, auricular, frontal-parietal, pelvic limb, torso, abdominal, lumbar, and thoracic regions was significantly higher during SJs (+3 °C) when compared to LJs (p < 0.0001). In particular, the frontal-parietal region had a significant increase of 10 °C during the post-transport phase (p < 0.0001) in both groups, recording the highest temperatures during this phase. Likewise, a strong positive significant correlation between the different regions was found (r = 0.90, p < 0.0001). It is worth mentioning that the herding, loading, pre-, and post-transport phases were the ones where the greatest thermal response was recorded, possibly due to the influence of human interaction. Finally, a strong positive correlation (r above 0.9, p > 0.001) between the periocular, lacrimal caruncle, pinna, and pelvic limb was found. According to the results, SJ could be considered a stressful event that hinders thermal generation, contrarily to LJ.