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Plant secondary compounds: beneficial roles in sustainable ruminant nutrition and productivity

Code: 9781786768100
David R. Yáñez-Ruiz and Alejandro Belanche, Estación Experimental del Zaidín, CSIC, Spain

Chapter synopsis: Plant secondary compounds, also known as phytogenics or phyotochemicals offer interesting opportunities to improve rumen function and livestock productivity in the current production systems as many plants produce secondary metabolites that, when extracted and concentrated, may exert modulation of the activity of gut microorganisms. Phytochemical feed additives are an extremely large group of compounds with great diversity in chemical structure and bioactivity. This chapter describes the composition, activity, effects on rumen function and animal performance of three major groups of plant secondary compounds: essential oils, tannins and saponins. The positive effects of these compounds include more efficient use of dietary protein and energy and decreased methane emissions, which sometimes result in increased milk yield or liveweight gain. However, despite extensive research conducted in the last decades, the use of plant extracts as feed additives in ruminant livestock is still limited by several factors, which are discussed in this chapter.

DOI: 10.19103/AS.2020.0067.25
Table of contents 1 Introduction 2 Essential oils (EO) 3 Tannins 4 Saponins 5 Future trends and conclusion 6 References

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