Bi-Objective Optimization Model Based on Profit and CO 2 Emissions for Pig Deliveries to the Abattoir

Esteve Nadal-Roig, Adela Pagès-Bernaus and Lluís M. Plà-Aragonès
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Esteve Nadal-Roig: Department of Mathematics, University of Lleida, 25001 Lleida, Spain
Adela Pagès-Bernaus: Department of Mathematics, University of Lleida, 25001 Lleida, Spain
Lluís M. Plà-Aragonès: Department of Mathematics, University of Lleida, 25001 Lleida, Spain

Sustainability, 2018, vol. 10, issue 6, 1-13

Abstract: This paper presents a bi-objective model for optimizing pig deliveries to the abattoir accounting for total revenue and CO 2 emissions. Fattening farms house the most important stage in pig production, and operations on farms must be coordinated with the rest of the pig supply chain when batch management is generally applied. The novelty of the model lies in the change of attitude in producers towards a greener production, which is becoming one of the major concerns in our society. In this context, we enrich the classical approach focused on revenues with the addition of the CO 2 emissions from the pigs on the fattening farms. Emissions derived from feeding and transportation are considered since they are the most important sources of CO 2 . The model is tested using parameters representing a typical integrated Spanish fattening farm. Our findings reveal the impact and the relationship between revenues and emissions, highlight that the break-even is reached achieving 459 kg of CO 2 per pig, which corresponds to a reduction of 6.05%. On the other hand, the profit is slightly reduced by 4.48% in favor of the environment.

Keywords: CO 2 emissions; deliveries to abattoir; pig production planning; mixed integer programming; pig SCM; pig sustainability (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:10:y:2018:i:6:p:1782-:d:149562

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