气候变化领域集成服务门户(CCPortal): Variations in Behavioral and Physiological Traits in Yearling Tibetan Sheep (Ovis aries)

CCPortal

DOI	10.3390/ani11061676
	Variations in Behavioral and Physiological Traits in Yearling Tibetan Sheep (Ovis aries)
	Yu, Yibo; Wang, Yun; Zhong, Liang; Zhu, Hongjuan; Qu, Jiapeng
通讯作者	Qu, JP (通讯作者)，Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China. ; Qu, JP (通讯作者)，Qinghai Prov Key Lab Anim Ecol Genom, Xining 810008, Peoples R China.
发表日期	2021
ISSN	2076-2615
卷号	11 期号:6
英文摘要	Simple Summary Tibetan sheep (Ovis aries) are raised in the wild by shepherds on the Tibetan Plateau and domesticated for a long period. Studying variations in the behavioral and physiological traits of sheep during the growing season is important for welfare and productivity. In this study, the behavior and physiology of a Tibetan sheep cohort were repeatedly evaluated in 2-, 5-, and 11-month-old sheep. The mean level of the risk-taking variable increased, while that of the vocalizations variable decreased. The exploration variable was stable over ontogeny. The novelty decreased, and the heart rate increased from 2 to 5 months, but both stabilized at 11 months. The fecal cortisol concentration (CORT) variable was stable at 2 and 5 months but decreased at 11 months of age. Stable correlations were reported for 2- and 5-month-olds and for behavioral variables and heart rate. However, some correlations emerged only at 11 months, whereas others disappeared over ontogeny. Moreover, CORT was independent of temperament and heart rate during the entire period. Temperament is a consistent behavioral difference among individuals over time or in different contexts. A comprehensive understanding of temperament and complex behavioral interactions enhances knowledge on animal evolution, welfare, and productivity. However, reports on the development of behavioral consistency over ontogeny are vague. Here, we tested the ontogeny of the temperament and physiological traits of Tibetan sheep (Ovis aries) in three crucial age stages. The mean level of the risk-taking variable increased, while that of the vocalizations variable decreased. The exploration variable was stable over ontogeny. The novelty decreased and the heart rate increased from the juvenile to the adolescent stage but stabilized at the adult stage. The fecal cortisol concentration (CORT) variable was stable at the juvenile and adolescent stages but decreased at the adult stage. Stable correlations were reported for the juvenile and adolescent stages and for the behavioral variables and heart rate. However, some correlations emerged only after maturation, whereas others disappeared over ontogeny. Moreover, CORT was independent of temperament and heart rate at different ages. These results demonstrate that age affects temperament and physiology and their correlations. Hence, developmental aspects should be incorporated into future temperament studies.
关键词	PERSONALITY-TRAITS ONTOGENY EMERGENCE STRESS EVOLUTIONARY
英文关键词	behavior; Tibetan sheep; ontogeny; temperament; physiology
语种	英语
WOS研究方向	Agriculture ; Veterinary Sciences ; Zoology
WOS类目	Agriculture, Dairy & Animal Science ; Veterinary Sciences ; Zoology
WOS记录号	WOS:000665302400001
来源期刊	ANIMALS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254639
作者单位	[Yu, Yibo; Zhong, Liang; Zhu, Hongjuan; Qu, Jiapeng] Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China; [Wang, Yun] China Acad Transportat Sci, Res Ctr Environm Protect & Water & Soil Conservat, Beijing 100029, Peoples R China; [Wang, Yun; Qu, Jiapeng] Qinghai Prov Key Lab Anim Ecol Genom, Xining 810008, Peoples R China; [Zhong, Liang; Zhu, Hongjuan] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yu, Yibo,Wang, Yun,Zhong, Liang,et al. Variations in Behavioral and Physiological Traits in Yearling Tibetan Sheep (Ovis aries)[J]. 中国科学院西北生态环境资源研究院,2021,11(6).
APA	Yu, Yibo,Wang, Yun,Zhong, Liang,Zhu, Hongjuan,&Qu, Jiapeng.(2021).Variations in Behavioral and Physiological Traits in Yearling Tibetan Sheep (Ovis aries).ANIMALS,11(6).
MLA	Yu, Yibo,et al."Variations in Behavioral and Physiological Traits in Yearling Tibetan Sheep (Ovis aries)".ANIMALS 11.6(2021).