Summary
Global food consumption is rising due to population growth and increased demand for animal protein, necessitating sustainable livestock production systems. This paper examines strategies to address inefficiencies in meat production, including high resource use and environmental impacts, by utilising low-value feedstuffs, agricultural by-products, and innovative supplements. A comprehensive literature review was conducted, synthesising recent research from databases such as Scopus and Web of Science, focusing on forage-based diets, grain supplements, marine-derived additives, agrifood by-products, and micronutrient interventions. Findings reveal that forage-based diets enhance health-enhancing fatty acids in ruminant meat, while marine supplements like Asparagopsis seaweed may reduce methan
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