Waste to Wealth: Recycling Agricultural Wastes As Feed Additives

DOI

10.2991/978-94-6463-282-8_3How to use a DOI?

Keywords

Feed Additives; Feed Efficiency; Antibiotics; Bioactive Compounds; Agricultural Waste; Plant Nutraceuticals

Abstract

An important goal of feed additives in animal nutrition is to improve feed efficiency with a concomitant reduction in the cost of production and invariably increase animal protein. Previously, the use of antibiotics at sub therapeutic concentrations in livestock production was essential to improve digestibility and efficiency of feed utilization, including animal health and performance. But current restrictions on the use of antibiotics as feed additives have strengthened research for alternatives, and natural feed additives are viewed as novel alternatives. Onion peel has been reported as a food waste but with its high content of phenolic bioactive compounds, it could be a viable candidate as a natural feed additive. More scientific information and data are required to validate its potential as a feed additive in ruminant nutrition. The aim of the study was to screen naturally available agricultural waste as a feed additive to improve animal performance for increased productivity. Using the in vitro batch culture technique, we evaluated the effects of onion peel at 0, 2.5, 5, 7.5 and 10% inclusion levels on dry matter digestibility and estimated short chain volatile fatty acids (SCFA) of high concentrate and high forage diets at 6, 24 and 48 h. Compared with the control, onion peel at 2.5% inclusion level had a slight increase (2-6%) in dry matter digestibility at 6 and 24 h, with higher values in the high forage diet. Consequently, numerical differences in the estimated SCFA values (0.26-3.36 mmol) and (0.29-3.85 mmol) for 0 and 2.5% inclusion levels respectively, indicate that more energy will be provided and available for improved animal performance with onion peel inclusion as a feed additive. Although the various onion peel inclusion levels impacted dry matter digestibility at different time periods, 2.5% inclusion level had the highest dry matter digestibility. Further studies are recommended including combining onion peel with other plant nutraceuticals for potential synergistic effects.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Lydia K. Olagunju
AU  - Peter A. Dele
AU  - Yasmine Shaw
AU  - Rosetta Brice
AU  - Oluteru E. Orimaye
AU  - Michael Wuaku
AU  - Uchenna Y. Anele
PY  - 2023
DA  - 2023/11/22
TI  - Waste to Wealth: Recycling Agricultural Wastes As Feed Additives
BT  - Proceedings of the National Conference on Next-Generation Sustainable Technologies for Small-Scale Producers (NGST 2022)
PB  - Atlantis Press
SP  - 12
EP  - 20
SN  - 2468-5747
UR  - https://doi.org/10.2991/978-94-6463-282-8_3
DO  - 10.2991/978-94-6463-282-8_3
ID  - Olagunju2023
ER  -