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热应激对奶牛的影响及缓解措施 被引量:5

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摘要 热应激给全球养牛业都带来了巨大的经济损失,尤其是对于炎热气候条件下的高产牛群。喷淋和强制通风相结合的降温措施已被证明是在所有气候条件下最经济、有效的降温方法。所有成年母牛(包括怀孕后期的成母牛和青年牛)在夏季都需要降温,降温时间与生产水平和热应激程度成正比。本文阐述了应用降温措施对奶牛及环境的影响,并推荐使用"夏冬比"(奶牛夏季、冬季日均产奶量的比率)来评价降温效果。
出处 《中国奶牛》 2015年第17期58-61,共4页 China Dairy Cattle
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