Livestock Production and Welfare Group, School of Life and Environmental Sciences, University of Sydney, Camden, NSW 2570, Australia.
Sydney School of Veterinary Science, University of Sydney, Camden, NSW 2570, Australia.
Animal. 2024 Sep;18(9):101267. doi: 10.1016/j.animal.2024.101267. Epub 2024 Jul 18.
With increasing climate variability, there is a rise in the exposure to, and incidence of, ruminant heat stress (HS), increasing the requirement for focused research. As such, precise terminology is crucial to maintain effective communication and knowledge advancement. Despite this, several key terms are currently defined inconsistently, leading to confusion and misinterpretation. This paper examines the historical and contemporary use of the terms 'resistance', 'tolerance', 'resilience', and 'susceptibility' across various disciplines, revealing significant ambiguities that hinder both research and practice. Through this comprehensive review, we propose new definitions for each term as they are used relating to HS, with a focus on ruminant production. Proposed definitions align with current scientific understanding, providing a robust framework for future research and application. As further research is conducted, we hope these definitions can be improved through the inclusion of quantitative measures which align with these classifications. This present review provides definition clarity for common heat abatement terminology, enabling consistency and from this, progress in the field to ameliorate HS for ruminants.
随着气候变异性的增加，反刍动物热应激（HS）的暴露和发病率上升，这就需要对其进行更有针对性的研究。因此，准确的术语对于保持有效的沟通和知识进步至关重要。尽管如此，目前仍有一些关键术语的定义不一致，导致混淆和误解。本文研究了术语“抗性”、“耐受性”、“弹性”和“易感性”在不同学科中的历史和当代用法，揭示了这些术语存在的严重歧义，这些歧义既阻碍了研究也阻碍了实践。通过这项全面的综述，我们提出了每个术语在与 HS 相关的反刍动物生产中的新定义。提出的定义与当前的科学理解一致，为未来的研究和应用提供了一个强有力的框架。随着进一步的研究，我们希望通过纳入与这些分类一致的定量措施来改进这些定义。本综述为常见的热缓解术语提供了明确的定义，从而实现了一致性，并为改善反刍动物的 HS 提供了该领域的进展。
