Abstract The aim of this study was to evaluate the influence of social position and degree of affinity among heifers attempting to access limited feed supplement. This study was divided into two stages: (1) observation of behaviour at the paddock and (2) arena tests. In stage 1, we measured socio-positive interactions (licking and frequency of proximity among animals) and agonistic interactions in a herd of nineteen dairy heifers. The frequency of proximity between animals of different dominance ranks was used as a measure of the degree of affinity. This measure was considered for two arena tests. In the first we compared pairs with high (PHda, n = 7) and low (PLda, n = 7) degree of affinity. In the second arena test a third neutral middle-ranking animal was included, and we compared triads with a pair with high (THda, n = 7) or low (TLda, n = 7) degree of affinity. In the arena tests, feed supplementation was offered to pairs and triads, and latency to access food, time spent at the feeder, and agonistic interactions were measured. The degree of affinity influenced (p

中文翻译：

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奶牛之间的亲和力影响饲料补充剂的获取

摘要 本研究的目的是评估试图获得有限饲料补充剂的小母牛的社会地位和亲和度的影响。这项研究分为两个阶段：（1）观察围场的行为和（2）竞技场测试。在第 1 阶段，我们测量了 19 头奶牛群中的社会积极互动（动物之间的舔食和接近频率）和激动互动。不同优势等级的动物之间的接近频率用作亲和度的量度。该措施被考虑用于两个竞技场测试。在第一个中，我们比较了具有高 (PHda, n = 7) 和低 (PLda, n = 7) 亲和度的配对。在第二个竞技场测试中，包括了第三只中性中级动物，我们将黑社会与一对高 (THda, n = 7) 或低 (TLda, n = 7) 亲和度。在竞技场测试中，为成对和三合会提供饲料补充剂，并测量获取食物的潜伏期、在喂食器上花费的时间和激动相互作用。亲和力影响的程度（p