Valuing leftover streams through livestock; the impact of livestock system and productivity level

O. van Hal, I.J.M. de Boer, Christian Schader, Adrian Muller, W.J.J. Gerrits, S. de Vries, H.H.E. van Zanten

Research output: Chapter in Book/Report/Conference proceedingAbstract

Abstract

While the role of livestock in sustainable food systems is heavily debated, recent studies show that livestock can contribute to global nutrition security by converting leftover streams – products humans cannot or do not want to eat – into animal-source food (ASF). Where these studies clearly underpin livestock’s role in global food security, the current study aims to identify which combination of livestock systems, differing in production level, can optimally convert leftover streams into protein. To this end, we developed an optimization model containing a variety of livestock systems (pigs, dairy cattle, beef cattle, laying hens and broilers), differing in production level (low, mid and high), to enable better utilization of the various (low quality) leftovers. Included leftover streams consist of waste and processing co- products related to current food consumption in the EU and currently available grazing resources in the EU. The optimal use of these leftover streams requires mainly low productive dairy cattle, and provides 30 g animal protein/cap/day. Although this protein supply fulfils half of our daily protein requirement, it requires a shift in consumption patterns and farming practices. This study illustrates that using leftover streams optimally, improves the role of livestock in nutrition security.
Original languageEnglish
Title of host publication11th International Conference on Life Cycle Assessment of Food 2018 (LCA Food)
Subtitle of host publicationBook of abstracts
Pages123-123
Publication statusPublished - 17 Oct 2018
Event11th International Conference on Life Cycle Assessment of Food 2018 (LCA Food): Global food challenges towards sustainable consumption and production - Bangkok, Thailand
Duration: 16 Oct 201820 Oct 2018
http://www.lcafood2018.com/

Conference

Conference11th International Conference on Life Cycle Assessment of Food 2018 (LCA Food)
CountryThailand
CityBangkok
Period16/10/1820/10/18
Internet address

Fingerprint Dive into the research topics of 'Valuing leftover streams through livestock; the impact of livestock system and productivity level'. Together they form a unique fingerprint.

Cite this