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Instant Insights: Alternative sources of protein for pigs

Code: 9781835450123
Publication Date: 19/08/2025

Contributions by: Marta López-Alonso, Universidade de Santiago de Compostela, Spain; Marco García-Vaquero, University College Dublin, Ireland; and Marta Miranda, Universidade de Santiago de Compostela, Spain; Peter Williams, AG-BIO Ltd, UK; Kristy DiGiacomo, University of Melbourne, Australia; Sarah Struthers and Jos Houdijk, Scotland’s Rural College (SRUC), UK; and Heidi Hall, Anpario PLC and CABI, UK

Description

This book features four peer-reviewed reviews on the development of alternative sources of protein as feed for pigs.

The first chapter summarises the nutritional attributes of macroalgae in terms of macro and micronutrients as a source of protein and other compounds in pig nutrition. The chapter also discusses the benefits of macroalgae or macroalgal derived extracts in feed.

The second chapter considers the application of corn fermented protein in feed formulations for pigs. The chapter reviews the challenges in producing corn fermented protein and includes a selection of case studies which detail the effects of adding corn fermented protein into the diets of pigs.

The third chapter provides an overview of the current state of insect production for pig feed globally and reviews the nutritional, economic and environmental benefits of using insects as feed. The chapter also summarises current research on insects as antimicrobials and life cycle assessments of their rearing.

The final chapter discusses the use of black soldier fly (BSF) as an alternative protein source to conventional proteins, such as soya bean meal or fishmeal, in the diets of pigs. The chapter also reviews the benefits and challenges of using BSF in pig diets and highlights what data is still lacking for widespread use of this novel protein.

Key Features

  • Highlights the range of novel protein sources which could replace conventional proteins, from macroalgae and macroalgal derived extracts, to insects and corn fermented protein
  • Considers the benefits and challenges of using alternative sources of protein in the diets of pigs
  • Reviews the current state of insect production for pig feed globally

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Table of Contents

  • Chapter 1 - Developing seaweed/macroalgae as feed for pigs: Marta López-Alonso, Universidade de Santiago de Compostela, Spain; Marco García-Vaquero, University College Dublin, Ireland; and Marta Miranda, Universidade de Santiago de Compostela, Spain;
    • 1 Introduction
    • 2 Challenges in using macroalgae for feed applications
    • 3 Composition of macroalgae
    • 4 Biological functions and health-promoting effects of macroalgae and macroalgal-derived extracts in pig nutrition
    • 5 Conclusion and future trends
    • 6 Where to look for further information
    • 7 Acknowledgements
    • 8 References
  • Chapter 2 - High protein corn fermentation products for swine derived from corn ethanol production: Peter Williams, AG-BIO Ltd, UK;
    • 1 Introduction
    • 2 Distillers dried grains with solubles
    • 3 Corn fermented protein
    • 4 Challenges in producing corn fermented protein
    • 5 Case study: standardized ileal digestibility of CFP for pigs
    • 6 Case study: concentrations of digestible and metabolizable energy in CFP products fed to pigs
    • 7 Case study: effects of adding phytase on availability of calcium and phosphorus in corn-fermented products
    • 8 Case study: effects on performance of pigs of inclusion of corn-fermented protein in the diet
    • 9 Conclusion
    • 10 References
  • Chapter 3 - Developing alternative sources of protein in pig nutrition: insects: Kristy DiGiacomo, University of Melbourne, Australia;
    • 1 Introduction
    • 2 Why insects
    • 3 Current state of insect production
    • 4 Potential insects and current production volumes
    • 5 Production and health responses in pigs
    • 6 Competition for resources
    • 7 Rearing insects on manure
    • 8 Current research
    • 9 Future trends in research
    • 10 Barriers to uptake/challenges to production
    • 11 Conclusion
    • 12 Where to look for further information
    • 13 References
  • Chapter 4 - Use of protein from black soldier flies in pig feed: Sarah Struthers and Jos Houdijk, Scotland’s Rural College (SRUC), UK; and Heidi Hall, Anpario PLC and CABI, UK;
    • 1. Introduction
    • 2. Nutritional composition of black soldier fly
    • 3. Production performance in pigs fed black soldier fly
    • 4. Benefits of using black soldier fly
    • 5. Challenges
    • 6. Applications
    • 7. Conclusions
    • 8. Acknowledgements
    • 9. References

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