Longevity of companion dog breeds: those at risk from early death

IF 3.8 2区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Scientific Reports Pub Date : 2024-02-01 DOI:10.1038/s41598-023-50458-w

Kirsten M. McMillan, Jon Bielby, Carys L. Williams, Melissa M. Upjohn, Rachel A. Casey, Robert M. Christley

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Abstract

The companion dog is one of the most phenotypically diverse species. Variability between breeds extends not only to morphology and aspects of behaviour, but also to longevity. Despite this fact, little research has been devoted to assessing variation in life expectancy between breeds or evaluating the potential for phylogenetic characterisation of longevity. Using a dataset of 584,734 unique dogs located within the UK, including 284,734 deceased, we present variation in longevity estimates within the following: parental lineage (purebred = 1 breed, crossbred ≥ 2 breeds), breed (n = 155), body size (large, medium, small), sex (male, female) and cephalic index (brachycephalic, mesocephalic, dolichocephalic). Survival estimates were then partitioned amongst phylogenetic clades: providing evidence that canine evolutionary history (via domestication and associated artificial selection) is associated with breed lifespan. This information provides evidence to inform discussions regarding pedigree health, whilst helping current/prospective owners, breeders, policy makers, funding bodies and welfare organisations improve decision making regarding canine welfare.

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伴侣犬品种的寿命：有早死风险的品种

伴侣犬是表型最多样化的物种之一。品种间的差异不仅体现在形态和行为方面，还体现在寿命上。尽管如此，很少有研究致力于评估犬种间预期寿命的差异或评估长寿系统发育特征的潜力。我们利用英国境内 584,734 只独特犬只的数据集（其中包括 284,734 只死亡犬只），对以下方面的寿命估计值进行了分析：亲本血统（纯种 = 1 个品种，杂交品种 ≥ 2 个品种）、品种（n = 155）、体型（大、中、小）、性别（雄、雌）和头指数（肱头、中头、多立头）。然后对各系统发生支系的存活率估计值进行了划分：提供了犬类进化史（通过驯化和相关的人工选择）与品种寿命相关的证据。这些信息为有关血统健康的讨论提供了证据，同时也有助于现在/未来的犬主、饲养者、政策制定者、资助机构和福利组织改善有关犬类福利的决策。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Scientific Reports Natural Science Disciplines-

CiteScore

7.50

自引率

4.30%

发文量

19567

审稿时长

3.9 months

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