中文摘要：

热应激成为全球奶牛养殖业面临的重大挑战,各国积极调动科研技术力量,致力于攻关这一全球性难题,并取得了一定的进展,同时奶牛场也在反复实践中摸索出许多成功经验。物理性降温措施目前被认为是缓解奶牛热应激的最有效措施。作者从奶牛健康福利角度入手,就奶牛热应激和各种物理性降温措施的原理作一讨论,以供牛场根据实际情况加以选用。

英文摘要：

Heat stress has become the major challenge for global dairy cow industries. Countries are all actively mobilizing the strength of scientific research and technology to solve the global problems, and have made some progress. At the same time, dairy farms also have work out successful experience through repeatedly practice. Physical cooling measures are currently considered to be the most effective measures to relieve the effects of cow heat stress. This article discusses about heat stress of dairy cow and the principle and use of physical cooling measures from cow health perspective, in order to choose the most ap- propriate measures.