Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 546610
Title Valuing leftover streams through livestock; the impact of livestock system and productivity level
Author(s) Hal, O. van; Boer, I.J.M. de; Schader, Christian; Muller, Adrian; Gerrits, W.J.J.; Vries, S. de; Zanten, H.H.E. van
Source In: 11th International Conference on Life Cycle Assessment of Food 2018 (LCA Food). - - p. 123 - 123.
Event 11th International Conference on Life Cycle Assessment of Food 2018 (LCA Food), Bangkok, 2018-10-16/2018-10-20
Department(s) Animal Production Systems
Animal Nutrition
Publication type Abstract in scientific journal or proceedings
Publication year 2018
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.
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