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Circular bioeconomy: Animal by-products from livestock carcass processing

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posted on 2025-10-22, 19:50 authored by Michael Lee, Stewart Ledgard, Lucas Cypriano, Stephen Woodgate, Philippe Becquet
<p dir="ltr"><b>Implications</b></p><ul><li>Livestock carcass production systems (as opposed to dairy and egg production) have as their primary objective to produce meat for human consumption. This production is accompanied by by-products, which are either not consumable by humans or not appreciated (e.g., offals in certain regions).</li><li>By-products from meat production contain valuable components (e.g., protein, fat, minerals), which may be used by or recycled either directly to humans or in livestock feed, following specific processes (called rendering).</li><li>Rendered animal by-products can be used to replace other sources of nutrients such as plant-based proteins (e.g., soybean meal), calcium and phosphorus sources (mined sources), fat (e.g., oil from oilseed), maintaining these nutrients within the food chain and improving sustainability via circularity.</li><li>Advancements in the rendering sector resulting from the Bovine Spongiform Encephalopathy (BSE) crisis have allowed for the safe use of these by-products. However, a higher use of these valuable by-products is required in the context of circular bioeconomy.</li></ul><p></p>

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Rights statement

© 2025 American Society of Animal Science This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

Publication date

2025-09-19

Project number

  • Non revenue

Language

  • English

Does this contain Māori information or data?

  • No

Publisher

Oxford University Press

Journal title

Animal Frontiers

ISSN

2160-6064

Volume/issue number

15(4)

Page numbers

20-29

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