Evaluation of methods to reduce exercise-induced heat stress in working Labrador Retrievers.

IF 1.4 3区 农林科学 Q2 VETERINARY SCIENCES
Robert L Gillette, J C Alves, Sarah Shull
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引用次数: 0

Abstract

Objective: To compare different methods for cooling dogs in the field following a heat stress event.

Methods: In this experimental study, animals were in a conditioning program 5 of 7 days per week. For the test, dogs ran on a treadmill for 30 minutes at 12.5 km/h and a 2.5% incline, with room temperature maintained between 21 and 22 °C and the relative humidity maintained between 64% and 65.6%. A wet bulb globe thermometer was used to evaluate the immediate environment. In the first test, 6 method groups were assessed based on the cooling method implemented. The groups were no cooling, ingestion of ice water, cooling blanket use, use of a fan, or the application of alcohol or water to glabrous skin areas. In this test, rectal temperature, core temperature, heart rate, and respiratory rate were measured. In a second test, a fan was added to the water and alcohol methods from test 1, and the values were compared to the test 1 values.

Results: The sample included 12 Labrador Retrievers. In the first test, ingestion of ice water was the only treatment to reduce core temperature. In test 2, tap water + fan and alcohol + fan were more effective from the first evaluation moment postexercise. Both approaches showed similar results to each other.

Conclusions: Applying alcohol or water to glabrous areas, in combination with increased airflow, effectively reduced core temperature from a very early stage.

Clinical relevance: This study describes an approach to reduce the risk of heat-related damage.

减少工作拉布拉多猎犬运动引起的热应激的方法评估。
目的:比较热应激事件后野外冷却犬的不同方法。方法:在本实验研究中,动物在每周7天中的5天进行调节程序。在测试中,狗在跑步机上以12.5公里/小时的速度和2.5%的倾斜度跑30分钟,室温保持在21到22°C之间,相对湿度保持在64%到65.6%之间。湿球式温度计被用来评价当时的环境。在第一次测试中,根据实施的冷却方法对6个方法组进行评估。各组分别为不降温、摄入冰水、使用冷却毯、使用风扇或在无毛皮肤区域应用酒精或水。在这个测试中,测量直肠温度、核心温度、心率和呼吸频率。在第二个测试中,在测试1的水和酒精方法中加入一个风扇,并将其值与测试1的值进行比较。结果:样本包括12只拉布拉多猎犬。在第一次试验中,摄入冰水是降低堆芯温度的唯一方法。在测试2中,自来水+风扇和酒精+风扇从运动后的第一个评价时刻开始更有效。两种方法都显示出相似的结果。结论:在无毛区域应用酒精或水,结合增加气流,可以有效地从早期就降低核心温度。临床相关性:本研究描述了一种降低热相关损伤风险的方法。
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来源期刊
CiteScore
1.70
自引率
10.00%
发文量
186
审稿时长
3 months
期刊介绍: The American Journal of Veterinary Research supports the collaborative exchange of information between researchers and clinicians by publishing novel research findings that bridge the gulf between basic research and clinical practice or that help to translate laboratory research and preclinical studies to the development of clinical trials and clinical practice. The journal welcomes submission of high-quality original studies and review articles in a wide range of scientific fields, including anatomy, anesthesiology, animal welfare, behavior, epidemiology, genetics, heredity, infectious disease, molecular biology, oncology, pharmacology, pathogenic mechanisms, physiology, surgery, theriogenology, toxicology, and vaccinology. Species of interest include production animals, companion animals, equids, exotic animals, birds, reptiles, and wild and marine animals. Reports of laboratory animal studies and studies involving the use of animals as experimental models of human diseases are considered only when the study results are of demonstrable benefit to the species used in the research or to another species of veterinary interest. Other fields of interest or animals species are not necessarily excluded from consideration, but such reports must focus on novel research findings. Submitted papers must make an original and substantial contribution to the veterinary medicine knowledge base; preliminary studies are not appropriate.
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