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Article

Use of an Ethanol Bio-Refinery Product as a Soy Bean Alternative in Diets for Fast-Growing Meat Production Species: A Circular Economy Approach

1
School of Animal, Rural and Environmental Sciences, Brackenhurst Campus, Nottingham Trent University, Southwell NG25 0QF, UK
2
Fluid Quip Technologies, LLC, A Division of Green Plains Inc., Cedar Rapids, IA 52402, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Michael S. Carolan
Sustainability 2021, 13(19), 11019; https://doi.org/10.3390/su131911019
Received: 2 September 2021 / Revised: 24 September 2021 / Accepted: 28 September 2021 / Published: 4 October 2021
(This article belongs to the Special Issue Circular Economy Approaches for Lifecycles of Products and Services)
The recent conceptual pivot from bioethanol production to ethanol biorefining has led to development of protein derived by fractionating the non-ethanol streams post fermentation within the plant. The aim of this study was to identify the effect of replacing dietary soy with corn-fermented protein (CFP) on performance of fast-growing meat species and the impact on the carbon footprint associated with the feed for each species. The study contains trials on 3 species, broiler, turkey and salmon. In trial one, 324 broiler chicks were allocated randomly to 36 pens distributed into 3 dietary treatments; control (0% CFP), 5% CFP and 10% CFP; for 35 days. In trial 2, 150 turkey poults were allocated to 3 treatments: control (0 CFP), 4% CFP and 8% CFP for 35 days. In trial 3, 525 Atlantic Salmon (starting weight 304 g ± 10.7 g) were raised in 15 saltwater tanks for 84 days with 5 treatments, control (0% CFP), 5% CFP, 10% CFP, 15% CFP and 20% CFP. Growth response, nutrient utilisation and carbon footprint were assessed in each trial. Replacement of soy with CFP showed limited differences in growth response and nutrient utilization but replacing soy bean meal with CFP at rate of 5%, 8% and 10% in broiler, turkey and salmon diets, respectively resulted in a 14% decrease in carbon footprint of diet manufacturing. This investigation shows coupling bioethanol production with poultry and salmon production represents a highly effective circular economy contributing to multiple UN Sustainable Development Goals. View Full-Text
Keywords: sustainable development; food security; biorefining; salmon; poultry; net zero sustainable development; food security; biorefining; salmon; poultry; net zero
MDPI and ACS Style

Burton, E.; Scholey, D.; Alkhtib, A.; Williams, P. Use of an Ethanol Bio-Refinery Product as a Soy Bean Alternative in Diets for Fast-Growing Meat Production Species: A Circular Economy Approach. Sustainability 2021, 13, 11019. https://doi.org/10.3390/su131911019

AMA Style

Burton E, Scholey D, Alkhtib A, Williams P. Use of an Ethanol Bio-Refinery Product as a Soy Bean Alternative in Diets for Fast-Growing Meat Production Species: A Circular Economy Approach. Sustainability. 2021; 13(19):11019. https://doi.org/10.3390/su131911019

Chicago/Turabian Style

Burton, Emily, Dawn Scholey, Ashraf Alkhtib, and Peter Williams. 2021. "Use of an Ethanol Bio-Refinery Product as a Soy Bean Alternative in Diets for Fast-Growing Meat Production Species: A Circular Economy Approach" Sustainability 13, no. 19: 11019. https://doi.org/10.3390/su131911019

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