Insect-Based Proteins in Animal Feed: A Sustainable Alternative for Livestock and Aquaculture
DOI:
https://doi.org/10.61424/nrxbjg31Keywords:
Animal feed, Insect-based proteins, mealworms, digestibility, aquaculture production.Abstract
The rising global demand for animal protein has intensified the need for sustainable and efficient feed sources in livestock and aquaculture systems. Insect-based proteins have emerged as a promising alternative, offering high nutritional value, lower environmental footprint, and the potential to recycle organic waste streams. This review examines the current state of research on the use of insects—such as black soldier fly (Hermetia illucens), mealworms (Tenebrio molitor), and crickets (Gryllidae species)—as feed ingredients, highlighting their protein content, amino acid profiles, digestibility, and growth performance effects in livestock and aquaculture species. The study further evaluates technological, regulatory, and economic factors influencing the adoption of insect-based feeds, including production scalability, safety standards, and market acceptance. Evidence from recent trials indicates that insect-derived proteins can partially or fully replace conventional feed ingredients such as soybean meal and fishmeal without compromising animal health, growth rates, or product quality. Despite these advantages, challenges related to cost-effectiveness, regulatory harmonization, and consumer perceptions remain significant barriers to widespread adoption. The review concludes by identifying research gaps and future directions, emphasizing the integration of insect-based proteins into circular bioeconomy models as a strategy to enhance feed sustainability, reduce environmental impacts, and support resilient livestock and aquaculture production systems.
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