Effects of heat stress on body temperature, milk production, and reproduction in dairy cows : a novel idea for monitoring and evaluation of heat stress — A review

Heat stress exerts a substantial effect on dairy production. The temperature and humidity index (THI) is widely used to assess heat stress in dairy operations. Herein, we review the effects of high temperature and humidity on body temperature, feed intake, milk production, follicle development, estr...

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Veröffentlicht in:Asian-Australasian journal of animal sciences. - 1998. - 32(2019), 9 vom: 01. Sept., Seite 1332-1339
1. Verfasser: Liu, Jiangjing (VerfasserIn)
Weitere Verfasser: Li, Lanqi, Chen, Xiaoli, Lu, Yongqiang, Wang, Dong
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Asian-Australasian journal of animal sciences
Schlagworte:Journal Article Body Temperature Dairy Cows Heat Stress THI
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520 |a Heat stress exerts a substantial effect on dairy production. The temperature and humidity index (THI) is widely used to assess heat stress in dairy operations. Herein, we review the effects of high temperature and humidity on body temperature, feed intake, milk production, follicle development, estrous behavior, and pregnancy in dairy cows. Analyses of the effects of THI on dairy production have shown that body temperature is an important physiological parameter in the evaluation of the health state of dairy cows. Although THI is an important environmental index and can help to infer the degree of heat stress, it does not reflect the physiological changes experienced by dairy cows undergoing heat stress. However, the simultaneous measurement of THI and physiological indexes (e.g., body temperature) would be very useful for improving dairy production. The successful development of automatic detection techniques makes it possible to combine THI with other physiological indexes (i.e., body temperature and activity), which could help us to comprehensively evaluate heat stress in dairy cows and provide important technical support to effectively prevent heat stress 
650 4 |a Journal Article 
650 4 |a Body Temperature 
650 4 |a Dairy Cows 
650 4 |a Heat Stress 
650 4 |a THI 
700 1 |a Li, Lanqi  |e verfasserin  |4 aut 
700 1 |a Chen, Xiaoli  |e verfasserin  |4 aut 
700 1 |a Lu, Yongqiang  |e verfasserin  |4 aut 
700 1 |a Wang, Dong  |e verfasserin  |4 aut 
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