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两种短头颅犬种和一种中头颅犬种的解决问题的表现差异表明行为上存在幼态持续的证据。

The difference between two brachycephalic and one mesocephalic dog breeds' problem-solving performance suggests evidence for paedomorphism in behaviour.

机构信息

Department of Ethology, Institute of Biology, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, 1117, Hungary.

MTA-ELTE Lendület "Momentum" Companion Animal Research Group, Budapest, Hungary.

出版信息

Sci Rep. 2023 Sep 21;13(1):14284. doi: 10.1038/s41598-023-41229-8.

Abstract

Despite serious health and longevity problems, small brachycephalic breeds are becoming increasingly popular among pet owners. Motivations for choosing short-nosed breeds have been extensively investigated in recent years; however, this issue has been addressed mainly by relying on owner reports, resulting in explanations of "cute looks", referring to the baby-schema phenomenon and "behaviour well suited for companionship". We aimed to compare the behaviour of two brachycephalic (English and French bulldogs) and one mesocephalic (Mudi) breed in a problem-solving context. The dogs were given the task of opening boxes containing food rewards. We investigated human-directed behaviour elements over success and latency (indicators of motivation and ability). We found that both English and French bulldogs were significantly less successful in solving the problem than mudis. Both brachycephalic breeds had longer opening latencies than the mesocephalic breed. Brachycephalic breeds oriented less at the problem box and more at humans present. In summary, the short-headed breeds were less successful but oriented much more toward humans than mesocephalic dogs. Owners might interpret these behaviours as "helplessness" and dependence. The results support the hypothesis that infant-like traits may be present not only in appearance but also in behaviour in brachycephalic breeds, eliciting caring behaviour in owners.

摘要

尽管存在严重的健康和长寿问题,短头品种仍然在宠物主人中越来越受欢迎。近年来,人们广泛研究了选择短鼻品种的动机;然而,这个问题主要依赖于主人的报告来解释,解释为“可爱的外表”,指的是婴儿形态现象和“适合陪伴的行为”。我们旨在比较两种短头(英国和法国斗牛犬)和一种中头(Mudi)品种在解决问题时的行为。让狗完成打开装有食物奖励的盒子的任务。我们研究了人类指向的行为元素在成功和潜伏期(动机和能力的指标)上的表现。我们发现,英国和法国斗牛犬在解决问题方面的成功率明显低于 Mudi。这两种短头品种的打开时间都比中头品种长。短头品种对问题箱的定向较少,对在场的人类的定向较多。总的来说,短头品种的成功率较低,但与中头犬相比,它们更倾向于人类。主人可能会将这些行为解释为“无助”和依赖。结果支持了这样一种假设,即短头品种不仅在外表上,而且在行为上都可能具有婴儿般的特征,从而引发主人的关爱行为。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/87f9/10514333/69695e65bc5c/41598_2023_41229_Fig1_HTML.jpg

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