Yehoshav A Ben Meir, Fernando Garcia, Miri Cohen-Zinder, Ariel Shabtay
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引用次数: 0
摘要
我们使用接近记录仪绘制了15头集体饲养的哺乳荷斯坦小牛的社会网络,为期70天,分为五个试验期。标签ID,遇到的标签ID,以及遇到的开始时间和长度从接近记录器收集。使用3D矩阵和趋势线区分了三种相遇类型:“快速下降”(高达~120秒),“中度下降”(~120至~ 600秒)和“指数下降”(超过~ 600秒)。我们假设,两只具有敌对关系的小牛之间的随机相遇会很快结束,而亲和的相遇会持续存在。5000个随机排列的二次分配结果显示,在第1和第5周期,短相遇(“对抗”)和长相遇(“从属”)矩阵之间存在显著的负相关(r = -0.490和-0.767),在第3周期呈负相关趋势(r = -0.141, p = 0.104),而在第2和第4周期无显著相关性。这些结果与社会网络分析相一致,揭示了这些时期的激烈(短暂接触)关系。我们建议将这种方法用于进一步研究各种因素对社会网络动态的影响及其对健康、摄入、生长和效率的影响。
Use of proximity loggers to Estimate Affiliative and Agonistic Relationships among Group-housed Holstein calves.
We used proximity loggers to map the social network of 15 group-housed suckling Holstein calves over a 70-day period divided into five trial periods. Tag ID, encountered tag ID, and encounter start time and length were collected from the proximity loggers. Use of 3D matrices and trendlines distinguished three encounter types: "rapid decline" (up to ~ 120 s), "moderate decline" (~120 to ~ 600 s), and "exponential decline" (longer than ~ 600 s). We hypothesized that a random encounter between two calves with an agonistic relationship would terminate quickly, whereas affiliative encounters would linger. Quadratic assignment with 5000 random permutations revealed a significant negative correlation between short encounters ("agonistic") and long encounters ("affiliative") matrices in periods 1 and 5 (r = -0.490 and -0.767, respectively), tendency toward negative correlation in period 3 (r = -0.141, p = 0.104), and no significant correlations in periods 2 and 4. These results were in accordance with the social network analyses revealing agonistic (short encounters) relationships in those periods. We suggest using this method in further studies on the effects of various factors on social network dynamics and its effect on health, intake, growth, and efficiency.
期刊介绍:
Journal of Applied Animal Welfare Science (JAAWS) publishes articles on methods of experimentation, husbandry, and care that demonstrably enhance the welfare of nonhuman animals in various settings. For administrative purposes, manuscripts are categorized into the following four content areas: welfare issues arising in laboratory, farm, companion animal, and wildlife/zoo settings. Manuscripts of up to 7,000 words are accepted that present new empirical data or a reevaluation of available data, conceptual or theoretical analysis, or demonstrations relating to some issue of animal welfare science. JAAWS also publishes brief research reports of up to 3,500 words that consist of (1) pilot studies, (2) descriptions of innovative practices, (3) studies of interest to a particular region, or (4) studies done by scholars who are new to the field or new to academic publishing. In addition, JAAWS publishes book reviews and literature reviews by invitation only.