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Potential Biological Impacts of Microplastics and Nanoplastics on Farm Animals: Global Perspectives with Insights from Bangladesh
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This review examines the largely unexplored effects of microplastics and nanoplastics on farm animals, with particular focus on Bangladesh's livestock sector. Evidence from experimental studies suggests these particles can enter animals through contaminated feed, water, and air, potentially causing oxidative stress, gut disruption, reduced fertility, and changes in gene expression. The findings highlight an urgent need for research and regulation to protect food safety and animal health in regions with high plastic pollution.
Microplastics (MPs) and nanoplastics (NPs), formed through the degradation of larger plastic materials, are emerging pollutants of significant concern. While their impact on aquatic ecosystems is well documented, their effects on terrestrial, especially farm animals remain underexplored. This review assesses the potential threats of MPs and NPs to Bangladesh's livestock sector by analyzing the results of experimental models and environmental studies. In Bangladesh, MPs and NPs have been detected in agricultural soils, air, water bodies, and aquatic organisms, indicating possible entry into animal systems through contaminated feed, water, and inhalation. Once internalized, these particles may trigger oxidative stress, inflammation, and tissue damage, impairing vital biological systems. Documented health consequences include reduced fertility, hematotoxicity, gut microbiota imbalance, gut-brain axis disruption, skeletal disorders, and metabolic dysfunction. Additionally, MPs and NPs can induce genomic changes, including altered gene expression and DNA hypomethylation, intensifying physiological damage and reducing productivity. Therefore, managing plastic contamination is vital in protecting animal health, ensuring food safety, and preserving human well-being around the globe, especially in vulnerable regions like Bangladesh. Given the critical role of livestock and poultry in ensuring food security and public health, the findings highlight an urgent need for comprehensive research and mitigation strategies.
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Microplastic pollution in livestock farming in Bangladesh: a critical review of its key findings and mitigation strategies to address public health
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This review synthesized research on microplastic pollution in livestock farming in Bangladesh, where unplanned farming practices contribute to contamination. Researchers found that microplastics enter animal feed, water, and soil, potentially affecting animal health, productivity, and the safety of animal-derived food products. The study recommends improved waste management, better farming practices, and further research to protect both public health and the livestock industry.
The negative impact of microplastics on the health of farm animals and the quality of livestock products
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Researchers reviewed evidence on how microplastics affect farm animals and the food supply chain, finding that controlled studies show oxidative stress, inflammation, and apoptosis at high doses, but whether ambient environmental concentrations cause measurable harm to livestock productivity or meat safety remains unresolved.
Impact of Microplastics and Nanoplastics on Livestock Health: An Emerging Risk for Reproductive Efficiency
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This review summarizes the growing evidence that microplastics and nanoplastics harm livestock reproductive systems through oxidative stress, hormone disruption, and organ damage. Farm animals are particularly important because contaminants in their bodies can transfer to humans through meat, milk, and eggs. The review warns that microplastic accumulation in livestock could create a hidden food safety risk through biological amplification up the food chain.
Microplastic Contamination Across Bangladesh’s Aquaculture and Fisheries Value Chain: A Structured Review of Farm Inputs, Aquatic Biota, Seafood Products, Dietary Exposure, and Research Gaps
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Tiny plastic particles called microplastics are showing up throughout Bangladesh's fish and seafood supply, from fish farm water and feed to the fish themselves and the seafood people eat. This review pulls together findings from 24 studies to map out where contamination is happening and how much might end up on our plates, though it also finds big gaps in research on how this actually affects human health. The takeaway: while we know microplastics are getting into the seafood chain, scientists still don't have enough data to say exactly how risky this is for consumers, meaning more research is urgently needed.
Microplastic Pollution and Human Health: Emerging Evidence and Public Health Implications for Bangladesh
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This review paper summarizes existing research on microplastics found in water, air, food and human samples like blood, stool and placenta, noting lab studies showing cell stress and inflammation. It highlights Bangladesh's pollution risks from rivers, waste and fishing, but notes human health effects remain unconfirmed and local monitoring data are lacking.
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