干旱区生态环境知识资源中心(Arid): Dynamic cooling strategy based on individual animal response mitigated heat stress in dairy cows

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DOI	10.1016/j.animal.2020.100093
	Dynamic cooling strategy based on individual animal response mitigated heat stress in dairy cows
	Levit, H.; Pinto, S.; Amon, T.; Gershon, E.; Kleinjan-Elazary, A.; Bloch, V; Ben Meir, Y. A.; Portnik, Y.; Jacoby, S.; Arnin, A.; Miron, J.; Halachmi, I
通讯作者	Halachmi, I (corresponding author), Agr Res Org ARO, Volcani Ctr, Inst Agr Engn, Precis Livestock Farming PLF Lab, 68 Hamaccabim Rd, IL-7505101 Rishon Leziyyon, Israel.
来源期刊	ANIMAL
ISSN	1751-7311
EISSN	1751-732X
出版年	2021
卷号	15 期号:2
英文摘要	Technological progress enables individual cow's temperatures to be measured in real time, using a bolus sensor inserted into the rumen (reticulorumen). However, current cooling systems often work at a constant schedule based on the ambient temperature and not on monitoring the animal itself. This study hypothesized that tailoring the cooling management to the cow's thermal reaction can mitigate heat stress. We propose a dynamic cooling system based on in vivo temperature sensors (boluses). Thus, cooling can be activated as needed and is thus most efficacious. A total of 30 lactating cows were randomly assigned to one of two groups; the groups received two different evaporative cooling regimes. A control group received cooling sessions on a preset time-based schedule, the method commonly used in farms; and an experimental group, which received the sensor-based (SB) cooling regime. The sensor-based regime was changed weekly according to the cow's reaction, as reflected in the changes in body temperatures from the previous week, as measured by reticulorumen boluses. The two treatment groups of cows had similar milk yields (44.7 kg/d), but those in the experimental group had higher milk fat (3.65 vs 3.43%), higher milk protein (3.23 vs 3.13%), higher energy corrected milk (ECM, 42.84 vs 41.48 kg/d), higher fat corrected milk 4%; (42.76 vs 41.34 kg/d), and shorter heat stress duration (5.03 vs 9.46 h/day) compared to the control. Dry matter intake was higher in the experimental group. Daily visits to the feed trough were less frequent, with each visit lasting longer. The sensor-based cooling regime may be an effective tool to detect and ease heat stress in high-producing dairy cows during transitional seasons when heat load can become severe in arid and semi-arid zones. (C) 2020 Published by Elsevier Inc. on behalf of The Animal Consortium.
英文关键词	Body temperature Bolus Global warming Precision livestock farming Sensor
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000626639900024
WOS类目	Agriculture, Dairy & Animal Science ; Veterinary Sciences
WOS研究方向	Agriculture ; Veterinary Sciences
来源机构	Hebrew University of Jerusalem
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349447
作者单位	[Levit, H.; Bloch, V; Halachmi, I] Agr Res Org ARO, Volcani Ctr, Inst Agr Engn, Precis Livestock Farming PLF Lab, 68 Hamaccabim Rd, IL-7505101 Rishon Leziyyon, Israel; [Levit, H.; Kleinjan-Elazary, A.; Ben Meir, Y. A.; Portnik, Y.; Jacoby, S.] Hebrew Univ Jerusalem, Robert H Smith Fac Agr Food & Environm, Dept Anim Sci, POB 12, IL-76100 Rehovot, Israel; [Pinto, S.; Amon, T.] Leibniz Inst Agr Engn & Bio Econ ATB, Dept Engn Livestock Management, D-14469 Potsdam, Germany; [Pinto, S.; Amon, T.] Free Univ Berlin, Coll Vet Med, Inst Anim Hyg & Environm Hlth, D-14163 Berlin, Germany; [Gershon, E.; Kleinjan-Elazary, A.; Ben Meir, Y. A.; Miron, J.] Agr Res Org ARO, Dept Ruminant Sci, Volcani Ctr, 68 Hamaccabim Rd, IL-7505101 Rishon Leziyyon, Israel; [Arnin, A.] Hachaklait Vet Serv, IL-38900 Caesarea, Israel
推荐引用方式 GB/T 7714	Levit, H.,Pinto, S.,Amon, T.,et al. Dynamic cooling strategy based on individual animal response mitigated heat stress in dairy cows[J]. Hebrew University of Jerusalem,2021,15(2).
APA	Levit, H..,Pinto, S..,Amon, T..,Gershon, E..,Kleinjan-Elazary, A..,...&Halachmi, I.(2021).Dynamic cooling strategy based on individual animal response mitigated heat stress in dairy cows.ANIMAL,15(2).
MLA	Levit, H.,et al."Dynamic cooling strategy based on individual animal response mitigated heat stress in dairy cows".ANIMAL 15.2(2021).