干旱区生态环境知识资源中心(Arid): Tree shade improves the comfort of sheep during extreme summer

Arid

DOI	10.1016/j.jveb.2020.10.003
	Tree shade improves the comfort of sheep during extreme summer
	De, Kalyan; Sharma, Shivendra; Kumawat, Pankaj Kumar; Kumar, Davendra; Mohapatra, Arpita; Sahoo, Artabandhu
通讯作者	De, K (corresponding author), ICAR Natl Res Ctr Pig, Rani 781131, Assam, India.
来源期刊	JOURNAL OF VETERINARY BEHAVIOR-CLINICAL APPLICATIONS AND RESEARCH
ISSN	1558-7878
EISSN	1878-7517
出版年	2020
卷号	40 页码:103-107
英文摘要	Exposure to the sun during summer is a common practice in the pastoral system of sheep rearing in the semi-arid tropics. Exposure of direct sun in the hot summer may increase the heat load of sheep and may affect the sheep welfare negatively. Therefore, this study planned to evaluate the effect of tree shade on the behavioral adaptation of sun-exposed sheep during extreme summer in semi-arid region. For this purpose, 16 Malpura Rams were selected. The selected rams were segregated uniformly into two groupsdG1 and G2. The rams of G1 were maintained under shaded area of the tree, whereas the rams of G2 were exposed to direct sun during summer in semi-arid tropic from 8 AM to 5 PM every day. The behavioral observations were recorded by the closed-circuit camera. Later on, the observation was taken in scanned sampling at 10-minute interval. The time taken for performing behaviors such as feed intake, rumination, standing, and lying was documented weekly once from morning (8 AM) to afternoon (5 PM) for 4 weeks. The data were analyzed with general linear model with repeated measures analysis. Protection of rams (G1) from the sun (P < 0.001) increased the total feed intake time. The time taken for performing panting, idle standing, panting in standing, and rumination in standing condition was (P < 0.001) lower in G1 compared with G2. The total standing time was also reduced (P < 0.05) in G1. The panting in a lying position was higher (P < 0.001) in G1 compared with G2. It is pertinent to conclude from the result that tree shade protects the sheep from direct sun exposure during summer and the sun exposed sheep modify their behaviors to combat the extra heat load in the semi-arid region. (C) 2020 Elsevier Inc. All rights reserved.
英文关键词	behavior heat load semi-arid sheep summer sun
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000600667700012
WOS关键词	HEAT-STRESS ; FEED-INTAKE ; AMBIENT-TEMPERATURE ; RUMEN TEMPERATURE ; SOLAR-RADIATION ; DAIRY-COWS ; BEHAVIOR ; PARAMETERS ; EWES
WOS类目	Behavioral Sciences ; Veterinary Sciences
WOS研究方向	Behavioral Sciences ; Veterinary Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349058
作者单位	[De, Kalyan; Sharma, Shivendra; Kumawat, Pankaj Kumar; Kumar, Davendra; Mohapatra, Arpita; Sahoo, Artabandhu] ICAR Cent Sheep & Wool Res Inst, Avikanagar, Rajasthan, India
推荐引用方式 GB/T 7714	De, Kalyan,Sharma, Shivendra,Kumawat, Pankaj Kumar,et al. Tree shade improves the comfort of sheep during extreme summer[J],2020,40:103-107.
APA	De, Kalyan,Sharma, Shivendra,Kumawat, Pankaj Kumar,Kumar, Davendra,Mohapatra, Arpita,&Sahoo, Artabandhu.(2020).Tree shade improves the comfort of sheep during extreme summer.JOURNAL OF VETERINARY BEHAVIOR-CLINICAL APPLICATIONS AND RESEARCH,40,103-107.
MLA	De, Kalyan,et al."Tree shade improves the comfort of sheep during extreme summer".JOURNAL OF VETERINARY BEHAVIOR-CLINICAL APPLICATIONS AND RESEARCH 40(2020):103-107.