Valuing leftover streams through livestock

impact of livestock system and productivity level

Research output: Contribution to conferencePosterAcademic

Abstract

The role of livestock in sustainable food systems is heavily debated. Recent studies, however, 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 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 animal protein. To this end, we developed an optimisation 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 utilisation of the various (low quality) leftovers. Leftover streams included food waste and food processing co-products related to current EU food consumption, and currently available grazing resources in the EU. Optimal conversion of leftovers results in a protein supply of 39 g/cap/day – 60% of daily protein requirements – from ASF (mainly milk). This protein supply is higher than found in previous studies (7-27 g/cap/day) indicating the importance of optimising the role of livestock production. Our results showed that dairy production is most efficient in converting a combination of leftovers and grass resources into animal protein. This however, requires a shift in consumption patterns towards more dairy and less meat. Maintaining current ASF ratios reduces the amount of animal protein available to 26 g/cap/day. This study, therefore, illustrates that using leftover streams optimally improves the role of livestock in nutrition security.
Original languageEnglish
Number of pages1
Publication statusPublished - 5 Feb 2018
EventWIAS Science Day 2018: WIASS: Work on your Impact in Animal Science and Society - Orion, Wageningen, Netherlands
Duration: 5 Feb 20185 Feb 2018

Conference

ConferenceWIAS Science Day 2018
CountryNetherlands
CityWageningen
Period5/02/185/02/18

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leftover foods
livestock
animal-based foods
animal proteins
livestock exhibitions
nutrition
food waste
coproducts
protein requirement
poultry production
livestock production
food processing
food security
beef cattle
laying hens
food consumption
dairy cattle
milk production
dairies
production technology

Cite this

van Hal, O. ; van Zanten, H.H.E. ; Schader, Christian ; Müller, A. ; Gerrits, W.J.J. ; de Vries, S. ; de Boer, I.J.M. / Valuing leftover streams through livestock : impact of livestock system and productivity level. Poster session presented at WIAS Science Day 2018, Wageningen, Netherlands.1 p.
@conference{422d72db08d1477dbc79838c9ffbd34e,
title = "Valuing leftover streams through livestock: impact of livestock system and productivity level",
abstract = "The role of livestock in sustainable food systems is heavily debated. Recent studies, however, 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 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 animal protein. To this end, we developed an optimisation 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 utilisation of the various (low quality) leftovers. Leftover streams included food waste and food processing co-products related to current EU food consumption, and currently available grazing resources in the EU. Optimal conversion of leftovers results in a protein supply of 39 g/cap/day – 60{\%} of daily protein requirements – from ASF (mainly milk). This protein supply is higher than found in previous studies (7-27 g/cap/day) indicating the importance of optimising the role of livestock production. Our results showed that dairy production is most efficient in converting a combination of leftovers and grass resources into animal protein. This however, requires a shift in consumption patterns towards more dairy and less meat. Maintaining current ASF ratios reduces the amount of animal protein available to 26 g/cap/day. This study, therefore, illustrates that using leftover streams optimally improves the role of livestock in nutrition security.",
author = "{van Hal}, O. and {van Zanten}, H.H.E. and Christian Schader and A. M{\"u}ller and W.J.J. Gerrits and {de Vries}, S. and {de Boer}, I.J.M.",
year = "2018",
month = "2",
day = "5",
language = "English",
note = "WIAS Science Day 2018 : WIASS: Work on your Impact in Animal Science and Society ; Conference date: 05-02-2018 Through 05-02-2018",

}

Valuing leftover streams through livestock : impact of livestock system and productivity level. / van Hal, O.; van Zanten, H.H.E.; Schader, Christian; Müller, A.; Gerrits, W.J.J.; de Vries, S.; de Boer, I.J.M.

2018. Poster session presented at WIAS Science Day 2018, Wageningen, Netherlands.

Research output: Contribution to conferencePosterAcademic

TY - CONF

T1 - Valuing leftover streams through livestock

T2 - impact of livestock system and productivity level

AU - van Hal, O.

AU - van Zanten, H.H.E.

AU - Schader, Christian

AU - Müller, A.

AU - Gerrits, W.J.J.

AU - de Vries, S.

AU - de Boer, I.J.M.

PY - 2018/2/5

Y1 - 2018/2/5

N2 - The role of livestock in sustainable food systems is heavily debated. Recent studies, however, 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 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 animal protein. To this end, we developed an optimisation 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 utilisation of the various (low quality) leftovers. Leftover streams included food waste and food processing co-products related to current EU food consumption, and currently available grazing resources in the EU. Optimal conversion of leftovers results in a protein supply of 39 g/cap/day – 60% of daily protein requirements – from ASF (mainly milk). This protein supply is higher than found in previous studies (7-27 g/cap/day) indicating the importance of optimising the role of livestock production. Our results showed that dairy production is most efficient in converting a combination of leftovers and grass resources into animal protein. This however, requires a shift in consumption patterns towards more dairy and less meat. Maintaining current ASF ratios reduces the amount of animal protein available to 26 g/cap/day. This study, therefore, illustrates that using leftover streams optimally improves the role of livestock in nutrition security.

AB - The role of livestock in sustainable food systems is heavily debated. Recent studies, however, 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 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 animal protein. To this end, we developed an optimisation 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 utilisation of the various (low quality) leftovers. Leftover streams included food waste and food processing co-products related to current EU food consumption, and currently available grazing resources in the EU. Optimal conversion of leftovers results in a protein supply of 39 g/cap/day – 60% of daily protein requirements – from ASF (mainly milk). This protein supply is higher than found in previous studies (7-27 g/cap/day) indicating the importance of optimising the role of livestock production. Our results showed that dairy production is most efficient in converting a combination of leftovers and grass resources into animal protein. This however, requires a shift in consumption patterns towards more dairy and less meat. Maintaining current ASF ratios reduces the amount of animal protein available to 26 g/cap/day. This study, therefore, illustrates that using leftover streams optimally improves the role of livestock in nutrition security.

M3 - Poster

ER -

van Hal O, van Zanten HHE, Schader C, Müller A, Gerrits WJJ, de Vries S et al. Valuing leftover streams through livestock: impact of livestock system and productivity level. 2018. Poster session presented at WIAS Science Day 2018, Wageningen, Netherlands.