Microalgae as an Alternative Mineral Source in Poultry Nutrition

Simple Summary This review looks at how microalgae can be used as a new and environmentally friendly way to feed chickens. Usually, chickens are given minerals like calcium and iron from sources that can harm the environment and be costly. Microalgae offer a better solution as they are rich in these important minerals and can be grown sustainably, using less land and water. We studied different kinds of microalgae to see which ones have the best nutrients for chickens and how easily these nutrients can be absorbed. We also explored the costs and challenges of using microalgae in chicken feed on a large scale. Our review shows that while microalgae are a promising alternative, there are still economic and safety issues to solve before they can be widely used. The use of microalgae in chicken feed could lead to healthier chickens and a smaller environmental footprint, making this a valuable approach for sustainable farming and food production.Abstract This review explores the potential of microalgae as a sustainable and nutritionally rich alternative for mineral supplementation in poultry diets, addressing both the opportunities and challenges in this emerging field. Poultry nutrition, pivotal to the health and productivity of birds, traditionally relies on inorganic and organic mineral sources which, while effective, raise environmental and economic concerns. Microalgae offer a promising solution with their high contents of essential minerals, proteins, vitamins, and bioactive compounds. This review delves into the nutritional profiles of various microalgae, highlighting their rich contents of minerals which are crucial for physiological processes in poultry. It examines the bioavailability of these minerals and their impact on poultry health and productivity. Furthermore, it evaluates the environmental sustainability of microalgae cultivation and acknowledges the challenges in using microalgae in poultry diets, particularly in terms of the economic viability of large-scale production and the consistency of nutrient composition. It discusses the importance of rigorous safety assessments and regulatory compliance, given the potential risks of toxins and heavy metals. Overall, this analysis aims to provide a clear understanding of the role microalgae could play in poultry nutrition and address sustainability challenges in animal agriculture while also considering future perspectives and advancements needed in this field.