期刊
JOURNAL OF THERMAL BIOLOGY
卷 33, 期 1, 页码 12-19出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jtherbio.2007.09.002
关键词
temperature; cattle; rumen temperature; core temperature; heat production
A technique was developed to monitor and describe the relationship between core body temperature (T-c) and rumen temperature (T-rum) in cattle. This relationship was assessed in cattle subjected to varying environmental temperatures and subsequent variations in dry matter and water intake. Increasing the environmental wet bulb temperature (WBT) from ambient conditions (approximately 15 degrees C WBT) to mild heat stress conditions (25 degrees C WBT) caused an increase in both T-c and T-rum with significant decreases in feed intake and increases in water consumption. Despite increases in both T-c and T-rum, reductions in dry matter intake, and an increase in water consumption, the relationship between T-c and T-rum did not change. (c) 2007 Elsevier Ltd. All rights reserved.
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