Biochar in Animal Agriculture: Enhancing Health, Efficiency and Environmental Sustainability

Abstract

Biochar, a carbon-rich material produced through the pyrolysis of organic biomass (e.g., wood, crop residues, manure and other organic wastes), has emerged -as an effective solution for enhancing sustainability in animal agriculture. This article reviews and integrates current research on biochar's multifaceted roles, including its use as a feed additive to improve gut health, nutrient absorption and growth performance. Notably, innovative applications of biochar in enhancing feed formulations and promoting animal resilience against diseases are discussed. Recent studies have shown that biochar can also enhance animal resilience against diseases and promote a healthier gut microbiome, which is essential for overall livestock productivity and well-being. Moreover, its unique properties allow for the development of biochar-based products that can significantly reduce feed costs while improving overall animal health. Additionally, biochar has been linked to improved feed efficiency, leading to better weight gain and reduced feed costs. Its ability to mitigate environmental impacts by reducing methane emissions and ammonia volatilization in manure management, and its long-term carbon sequestration potential are significant. Furthermore, the integration of biochar into circular agricultural systems is explored, highlighting its role in transforming waste into valuable resources. Moreover, biochar contributes to soil health by improving nutrient retention and water-holding capacity, which is crucial for sustainable farming practices. This enhancement leads to increased crop yields and a reduction in the reliance on synthetic fertilizers, thereby promoting a more circular agricultural economy. Despite these benefits, challenges such as variability in biochar quality, economic feasibility and the -need for standardized guidelines remain. Addressing these challenges is essential for widespread adoption and effective use in various agricultural systems, ensuring that biochar can be safely integrated into existing farming practices. Furthermore, this article underscores biochar's potential to bridge productivity and ecological sustainability, while calling for further research to optimize its applications and ensure safe, large-scale implementation in diverse livestock production systems.