Relationships between boldness and fecal steroid hormone levels in captive alpine musk deer (Moschus chrysogaster) in China

IF 2.2 2区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE
Wei Huang , Xiaolong Wang , Xin Zhou , Jiayi Wu , Xiaoping Lu , Vasili Shakun , Irena Solovej , Yong Li , Mi Zhou , Xiuxiang Meng
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Abstract

Animals adapt to environmental changes through behavioral and physiological regulation, and there are individual differences in their ability to adapt to the environment, which are associated with individual personality. Boldness is a fundamental axis of animal personality, characterizing an animal's response to unfamiliar environments and threats. From June 1 to July 28, 2023, a personality assessment experiment utilizing a novel stimulus test with an unfamiliar human was conducted on 39 captive alpine musk deer (Moschus chrysogaster) at the Zhuanglang Musk Farm in Gansu Province, China. We recorded avoidance reaction indicators of musk deer in the presence of an unfamiliar human, and measured the level of the musk deer's boldness, influencing factors, and the relationships with fecal steroid hormone levels. Based on cluster analysis, 39 captive musk deer could be divided into bold (boldness score, BSS = 0.994 ± 0.008, n = 3) and shy groups (BSS = 0.327 ± 0.145, n = 36) and the average BSS in 39 musk deer was 0.378 ± 0.228. Factors such as age, sex, and density of enclosures did not have a significant effect on the boldness of musk deer. There was a significant negative correlation between the musk deer's boldness and the level of fecal cortisol metabolites. However, the correlations between boldness and testosterone levels in males and estradiol levels in females were not significant. Based on the results of our study, in the practice of musk deer farming, the measurement of the boldness can help predict the individual's adaptation to environmental stress, and it can also provide a new research perspective for the study of the boldness of solitary animals that are forced to live in groups.

中国人工饲养高山麝香鹿的胆量与粪便类固醇激素水平之间的关系
动物通过行为和生理调节来适应环境变化,动物适应环境的能力存在个体差异,这与个体性格有关。大胆是动物性格的基本轴心,是动物对陌生环境和威胁的反应特征。2023年6月1日至7月28日,我们在中国甘肃省庄浪麝香种畜场对39只人工饲养的高山麝香鹿()进行了性格评估实验,利用陌生人类的新刺激测试。我们记录了麝香鹿在陌生人类面前的回避反应指标,并测定了麝香鹿的胆量水平、影响因素以及与粪便类固醇激素水平的关系。根据聚类分析,39只圈养麝香鹿可分为胆大组(胆大得分,BSS = 0.994 ± 0.008,n = 3)和胆小组(BSS = 0.327 ± 0.145,n = 36),39只麝香鹿的平均BSS为0.378 ± 0.228。年龄、性别和圈舍密度等因素对麝香鹿的胆量没有显著影响。麝香鹿的胆量与粪便皮质醇代谢物水平之间存在明显的负相关。然而,雄性麝香鹿的胆量与睾酮水平、雌性麝香鹿的雌二醇水平之间的相关性并不显著。根据我们的研究结果,在麝香鹿养殖实践中,对胆量的测量有助于预测个体对环境压力的适应性,也为研究被迫群居的独居动物的胆量提供了一个新的研究视角。
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来源期刊
Applied Animal Behaviour Science
Applied Animal Behaviour Science 农林科学-行为科学
CiteScore
4.40
自引率
21.70%
发文量
191
审稿时长
18.1 weeks
期刊介绍: This journal publishes relevant information on the behaviour of domesticated and utilized animals. Topics covered include: -Behaviour of farm, zoo and laboratory animals in relation to animal management and welfare -Behaviour of companion animals in relation to behavioural problems, for example, in relation to the training of dogs for different purposes, in relation to behavioural problems -Studies of the behaviour of wild animals when these studies are relevant from an applied perspective, for example in relation to wildlife management, pest management or nature conservation -Methodological studies within relevant fields The principal subjects are farm, companion and laboratory animals, including, of course, poultry. The journal also deals with the following animal subjects: -Those involved in any farming system, e.g. deer, rabbits and fur-bearing animals -Those in ANY form of confinement, e.g. zoos, safari parks and other forms of display -Feral animals, and any animal species which impinge on farming operations, e.g. as causes of loss or damage -Species used for hunting, recreation etc. may also be considered as acceptable subjects in some instances -Laboratory animals, if the material relates to their behavioural requirements
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