Familiarity, age, weaning and health status impact social proximity networks in dairy calves.
Familiarity, age, weaning and health status impact social proximity networks in dairy calves.
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DOI：
10.1038/s41598-023-29309-1
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发表时间：
2023-02-08
影响因子：
4.6
通讯作者：
Kaler, Jasmeet
中科院分区：
文献类型：
--
作者：
Vazquez-Diosdado, Jorge A.;Occhiuto, Francesca;Carslake, Charles;Kaler, Jasmeet
奶牛的社交网络分析尚未得到广泛研究，之前的研究因研究持续时间短、动物数量和重复次数少而受到限制。在这项研究中，我们对来自 5 个群体的 79 头荷斯坦-弗里斯兰小牛的社交邻近互动进行了长达 76 天的调查。使用从超宽带位置传感器技术获得的 4 天聚合关联以 1 Hz 采样率计算网络。评估了年龄、熟悉程度、健康状况和断奶状况对奶牛社交邻近网络的影响。不同的 4 天时间段之间的网络相关性很差（不稳定），其中大多数小牛的相关性是异质的，并且在整个研究期间，个体根据先前的熟悉程度进行分类。年龄显着增加了关联强度、社交时间和特征向量中心性，并显着降低了关联的亲密度和变异系数（CV）。与健康犊牛相比，患病犊牛的力量、社交时间、中心性和CV显着较低，而亲密度显着较高。在断奶期间和断奶后，犊牛的亲密度和CV显着降低，关联强度、社交时间和特征向量中心性显着升高。这些结果表明，年龄、熟悉程度、断奶和疾病对犊牛的社会邻近互动的变化有显着影响。
Social network analysis in dairy calves has not been widely studied, with previous studies limited by the short study duration, and low number of animals and replicates. In this study, we investigated social proximity interactions of 79 Holstein–Friesian calves from 5 cohorts for up to 76 days. Networks were computed using 4-day aggregated associations obtained from ultrawideband location sensor technology, at 1 Hz sampling rate. The effect of age, familiarity, health, and weaning status on the social proximity networks of dairy calves was assessed. Networks were poorly correlated (non-stable) between the different 4-day periods, in the majority of them calves associated heterogeneously, and individuals assorted based on previous familiarity for the whole duration of the study. Age significantly increased association strength, social time and eigenvector centrality and significantly decreased closeness and coefficient of variation in association (CV). Sick calves had a significantly lower strength, social time, centrality and CV, and significantly higher closeness compared to the healthy calves. During and after weaning, calves had significantly lower closeness and CV, and significantly higher association strength, social time, and eigenvector centrality. These results indicate that age, familiarity, weaning, and sickness have a significant impact on the variation of social proximity interaction of calves.
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影响因子：
3.2
作者：
Chopra K;Hodges HR;Barker ZE;Vázquez Diosdado JA;Amory JR;Cameron TC;Croft DP;Bell NJ;Codling EA
通讯作者：
Codling EA
影响因子：
3.7
作者：
Bolt SL;Boyland NK;Mlynski DT;James R;Croft DP
通讯作者：
Croft DP
影响因子：
9.2
作者：
Almeling, Laura;Hammerschmidt, Kurt;Fischer, Julia
通讯作者：
Fischer, Julia
影响因子：
3.5
作者：
Foris, B.;Haas, H-G;Melzer, N.
通讯作者：
Melzer, N.
影响因子：
3.7
作者：
Ede, Thomas;von Keyserlingk, Marina A. G.;Weary, Daniel M.
通讯作者：
Weary, Daniel M.