气候变化领域集成服务门户(CCPortal): Modeling heat stress under organic dairy farming conditions in warm temperate climates within the Mediterranean basin

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DOI	10.1007/s10584-020-02818-y
	Modeling heat stress under organic dairy farming conditions in warm temperate climates within the Mediterranean basin
	Blanco-Penedo I.; Velarde A.; Kipling R.P.; Ruete A.
发表日期	2020
ISSN	0165-0009
起始页码	1269
结束页码	1285
卷号	162 期号:3
英文摘要	We studied the effect of heat stress on milk quality in Spanish organic dairy farms using published milk productivity equations. We collected data from 23 weather stations and 14,424 milk test-days for milk yield and milk fat and protein content for the period July 2011 to June 2013. As an indicator of heat stress, we used the maximum daily temperature–humidity index (THI) from 2 days before the milk test date. We fitted the data using hierarchical regression models stratified by farm, cow parity and monthly test-day milk records. The effect of THI was deemed low on biological costs through milk yield. However, the known negative relationship between milk yield and milk quality (protein and fat content) became even steeper when the THI increased, suggesting a significant negative correlation between heat stress and milk quality. Therefore, although the milk yield of cows in the organic farming systems analyzed appeared resilient to heat stress conditions, milk quality, a major selling point for organic dairy products, was negatively affected. The model presented here could be used to predict the potential impacts of different climate change scenarios on dairy farming, and to delineate adaptation strategies within organic systems. © 2020, The Author(s).
英文关键词	Dairy cow; Farm resilience; Heat stress; Milk quality; Milk yield; Organic farming; THI
语种	英语
scopus关键词	Climate change; Climate models; Plants (botany); Proteins; Regression analysis; Thermal stress; Adaptation strategies; Climate change scenarios; Heat stress condition; Hierarchical regression models; Mediterranean basin; Negative correlation; Organic farming system; Productivity equation; Dairies; climate change; crop production; crop yield; dairy farming; farming system; genetic analysis; index method; modeling; organic farming; temperate environment; Mediterranean Region; Spain
来源期刊	Climatic Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147014
作者单位	Animal Welfare Programme, Institute of Agrifood Research and Technology—IRTA, Monells, 17121, Spain; Veterinary Epidemiology Unit, Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, 750 07, Sweden; IBERS, Aberystwyth University, Aberystwyth, Ceredigion SY23 3EE, United Kingdom; Greensway AB, Ulls väg 24A, Uppsala, 756 51, Sweden
推荐引用方式 GB/T 7714	Blanco-Penedo I.,Velarde A.,Kipling R.P.,et al. Modeling heat stress under organic dairy farming conditions in warm temperate climates within the Mediterranean basin[J],2020,162(3).
APA	Blanco-Penedo I.,Velarde A.,Kipling R.P.,&Ruete A..(2020).Modeling heat stress under organic dairy farming conditions in warm temperate climates within the Mediterranean basin.Climatic Change,162(3).
MLA	Blanco-Penedo I.,et al."Modeling heat stress under organic dairy farming conditions in warm temperate climates within the Mediterranean basin".Climatic Change 162.3(2020).