Department of Applied Epidemiology, National Centre for Epidemiology and Population Health, College of Health and Medicine, Australian National University, Acton, Australian Capital Territory, Australia.
Population Health Program, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia.
Matern Child Nutr. 2024 Apr;20(2):e13618. doi: 10.1111/mcn.13618. Epub 2024 Jan 8.
Child stunting due to linear growth faltering remains a pervasive issue in low- and middle-income countries. Two schools of thought have existed pertaining to the role of domestic livestock ownership (DLO) in child linear growth. On one hand, it is argued that DLO leads to greater income and financial security, resulting in better child-raising conditions, including greater animal-source food (ASF) consumption, having protective effects towards child stunting. On the other hand, researchers argue that DLO contributes to faecal contamination and transmission of zoonotic enteric infections from animals to children, thus having destructive effects on child growth. Reviews of this association have revealed ambiguous findings. In this perspective, we argue that measuring the association between exposures to domesticated animals and child stunting is difficult and the ambiguous associations revealed are a result of confounding and differences in the management of DLO. We also argue that the increasingly prominent area of research of environmental enteric dysfunction, a sub-clinical condition of the small intestine thought to be due to frequent faecal pathogen exposure and associated with stunting, will be a useful tool to measure the potential destructive effects of DLO on child growth. We present our argument and identify challenges and considerations and directions for future research.
儿童因线性生长迟缓而发育迟缓仍然是低收入和中等收入国家普遍存在的问题。关于家庭牲畜养殖(DLO)在儿童线性生长中的作用,存在两种观点。一方面,有人认为 DLO 导致收入和财务安全增加,从而改善儿童养育条件,包括增加动物源食品(ASF)的消费,对儿童发育迟缓有保护作用。另一方面,研究人员认为 DLO 会导致粪便污染和动物源性肠道感染向儿童传播,从而对儿童生长产生破坏作用。对这种关联的综述显示出结果不确定。在这种情况下,我们认为衡量接触家养动物与儿童发育迟缓之间的关联具有一定难度,并且所揭示的不确定关联是由于混杂因素和 DLO 管理方面的差异所致。我们还认为,环境肠病功能障碍这一逐渐受到关注的研究领域将是一个有用的工具,可用于衡量 DLO 对儿童生长的潜在破坏作用。我们提出了我们的观点,并确定了未来研究的挑战、考虑因素和方向。