Abstract Fasciola hepatica, the parasitic liver fluke, is a re‐emerging zoonotic infection and an important cause of morbidity and mortality in ruminant livestock worldwide. A significant animal welfare concern, fasciolosis also has a detrimental impact on food security, with the effects of sub‐clinical infection on growth rate and milk yield estimated to cost the UK cattle industry £40.4 million annually. It is understood that up to 50% of infective F. hepatica metacercariae may overwinter on pasture and remain viable to infect grazing livestock the following spring. However, the infection risk posed by feeding grass silage to livestock remains largely unknown as the majority of previous studies are outdated in both experimental design and analysis of ensiled metacercariae viability. Anecdotal reports of fasciolosis outbreaks in housed livestock have reignited interest in F. hepatica metacercariae survival during modern ensiling processes and more importantly if they retain viability within stored forages. Consequently, a comprehensive review of the available literature is required in order to identify knowledge gaps and highlight future research opportunities regarding the role of silage in the transmission of F. hepatica.

中文翻译：

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回顾我们目前对青贮饲料和储存饲料中寄生虫存活的理解，重点是肝片吸虫囊蚴

摘要 肝片吸虫是一种寄生性肝吸虫，是一种重新出现的人畜共患传染病，是全球反刍家畜发病和死亡的重要原因。作为一个重要的动物福利问题，片形吸虫病也对食品安全产生不利影响，亚临床感染对生长速度和产奶量的影响估计每年给英国养牛业造成 4040 万英镑的损失。据了解，高达 50% 的感染性肝包蚴可能会在牧场上越冬，并在次年春天仍能感染放牧牲畜。然而，由于以前的大多数研究在青贮囊蚴生存力的实验设计和分析方面都已经过时，因此向牲畜饲喂青贮青贮饲料所带来的感染风险仍然未知。圈养家畜中片状吸虫病爆发的轶事报道重新点燃了人们对现代青贮过程中肝包蚴存活率的兴趣，更重要的是，如果它们在储存的饲料中保持活力。因此，需要对现有文献进行全面审查，以确定知识差距并突出有关青贮饲料在肝镰刀菌传播中的作用的未来研究机会。