Microalgae in Sustainable Monogastric Systems

Abstract

This chapter delves into using microalgae as a promising solution for enhancing nutritional profiles and promoting environmental sustainability in monogastric livestock systems. As global demands for meat escalate, traditional feed sources such as corn and soybean are increasingly unsustainable due to their high ecological costs, including deforestation, biodiversity loss, and significant greenhouse gas emissions. Microalgae emerge as a superior alternative, offering dense nutritional benefits, including high-quality proteins, essential fatty acids, and critical micronutrients, that can significantly improve animal health and productivity. This exploration covers biotechnological and ICT technology advancements that have refined microalgae cultivation, making it possible to develop high-yield, nutrient-rich strains ideal for animal diets. The environmental benefits of integrating microalgae are profound, notably in reducing dependency on arable land, minimizing water usage, and curtailing greenhouse gas emissions. Economically, microalgae have the potential to lower feed costs and enhance farm profitability, crucial in regions reliant on imported feedstocks. However, the chapter does not shy away from the challenges facing widespread adoption, such as the high costs of production and issues with nutrient digestibility. It concludes by proposing strategic approaches to overcome these barriers, alongside policy recommendations aimed at fostering broader acceptance and use of microalgae in sustainable livestock practices.