As average human lifespans increase across the globe, companion animals, specifically dogs and cats, are also living longer with more age-related morbidities. However, a similar trend is not seen in mammalian livestock species. Cows, pigs, goats, and sheep, as well as more niche mammalian species raised across the world, have been primarily raised for their economic benefit to humans and are culled from the population once their production declines. To this end, we lack clear knowledge about the age-related morbidities and causes of death that afflict livestock animals due to natural aging, as well as detailed age-specific survival rates. Here, we review the current state of the field of agricultural mammal aging, as well as provide specific questions and directions that may provide novel resources for veterinarians and aging biologists. By raising awareness of the overall quality of life and ongoing health of individual livestock animals, we can potentially increase production into older life stages, leading to decreased costs to farmers and improved welfare for the animals themselves.

中文翻译：

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农场的短暂生命：农业大型哺乳动物的衰老和长寿。

随着全球人类平均寿命的延长，伴侣动物，特别是狗和猫的寿命也越来越长，与年龄相关的疾病也越来越多。然而，在哺乳动物家畜物种中没有看到类似的趋势。牛、猪、山羊和绵羊，以及世界各地饲养的更多小众哺乳动物，主要是为了给人类带来经济利益而饲养，一旦产量下降，就会被淘汰。为此，我们缺乏关于因自然衰老而影响家畜的与年龄相关的发病率和死亡原因的明确知识，以及详细的特定年龄存活率。在这里，我们回顾了农业哺乳动物衰老领域的现状，并提供了可能为兽医和衰老生物学家提供新资源的具体问题和方向。