Four Alternative Protein Sources for Animal Feed

As the global focus on resource efficiency intensifies, animal feed manufacturers are increasingly turning their attention towards alternative protein sources. By exploring and implementing these alternatives, rather than traditional choices such as soybean meal or fishmeal, the industry aims to address environmental concerns and contribute to a more sustainable and secure future for both humans and animals. In this new blog, we explore the latest trends in animal feed alternative proteins. We also look at the importance of amino acid analysis when developing new feed ingredients with novel proteins.

Developing alternative protein feed ingredients for a sustainable future

Insect meal: Sustainable Innovation in Animal Feed Production

Insect meal, produced from insects like black soldier fly larvae and mealworms, is an innovative and sustainable animal feed alternative. In particular, they have an interesting protein nutritional profile making them attractive ingredients for feed. Their production is also resource-efficient, requiring minimal land and water. Moreover, insects can be raised on organic waste, contributing to waste reduction. The use of insect meal as feed is however still in the early stages of adoption. In 2017, the EU authorised the use of insect meal as feed for fish. This was followed by their usage in pig and poultry farming in 2021.¹ As global interest in sustainable agriculture grows, insect meal represents a promising solution to address the environmental impact of conventional feed production whilst meeting the nutritional needs of livestock and poultry.

Single-Cell Proteins (SCP): Alternative Fish and Animal Feeds.

The incorporation of Single-Cell Proteins (SCP) in animal feed is gaining momentum as sustainable alternative proteins in animal diets. SCP refers to microbial proteins produced from microorganisms like bacteria, yeast, or algae. It offers a promising solution to address the challenges of conventional protein source production.² As global demand for protein rises, SCP presents an efficient and resource-effective way to meet nutritional needs in animal diets and especially in aquaculture. In particular, it has the potential to diminish reliance on fishmeal production and to address the shortcomings of plant-based feed ingredients, that may lack essential amino acids and often contain antinutritional factors.

Seaweeds in Animal Nutrition: A Sustainable and Nutrient-Rich Alternative Protein Source

The incorporation of seaweeds into animal feed has gained prominence as a sustainable and nutritionally valuable alternative protein source. Seaweeds, being rich in essential nutrients like proteins, vitamins, and minerals, contribute to enhancing the nutritional profile of livestock diets. Their inclusion in feed formulations provides a source of bioactive compounds, such as antioxidants and polyunsaturated fatty acids, offering potential health benefits for animals. Additionally, seaweeds can act as natural feed supplements, promoting improved growth, reproduction, and overall well-being in livestock. Beyond nutritional advantages, the cultivation of seaweeds for feed supports environmentally friendly practices. Indeed, these marine plants require minimal land, no freshwater, and can mitigate water pollution through nutrient absorption. Embracing seaweeds in animal nutrition underscores their role in fostering sustainable and responsible approaches to feed production, aligning with the broader goal of achieving resilient and eco-friendly agricultural systems.

Food Waste and By-products for a Circular Economy

Upcycled food waste and by-products of other industries (e.g., brewing, biofuel) are alternative protein sources that not only mitigates the environmental impact of traditional feed production, but also addresses the global challenge of food waste. They are rich sources of protein for animal feed containing a range of amino acids. By repurposing discarded food items and industrial by-products, the agricultural industry can significantly reduce the need for arable land and minimise the environmental footprint associated with waste disposal. Download our white paper “Breaking down proteins to build food waste solutions” to learn more.

Amino Acid Analysis of Alternative Proteins for Optimal Animal Nutrition

Amino acid analysis is an analytical technique that provides detailed insights into the specific amino acid profiles of any products. As amino acids are the building blocks of proteins, this analysis aids in assessing their protein quality. Amino acid analysis of feed products or alternative protein sources is therefore vital in animal nutrition, ensuring that animal diets are balanced and optimised for optimal growth, development, and overall health. In the case of alternative proteins, amino acid analysis plays a pivotal role in advancing their utilisation as feed alternatives or supplements.

Conclusion

At AltaBioscience, we support feed manufacturers by providing crucial nutritional information about their feed ingredients and finished produce. Our amino acid analysis service is accredited to ISO 17025:2017, and we can accurately quantify protein and amino acid levels in any sample types.

Whether they are derived from traditional or alternative protein sources, our analysis is suitable for:

• Feedstuffs and fodder
• Dried distillers’ grains with solubles (DDGS)
• Protein hydrolysates
• Raw materials
• Food waste
• Animal by-products
• Fishmeal
• Insect proteins
• Plant-based ingredients.

Contact our team today or download our technical document below to see how we can help with your amino acid analysis requirements.