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.
Highlights
The pig production industry has evolved greatly over recent years [1] to increase its efficiency financially and productively
This vertically-integrated system leads to intensive farming, with a bigger concentration of manure to manage in limited areas and additional transportation requirements to transfer and move piglets and pigs from one farm to another while they are growing
This paper is concerned with fattening farms, these being the last stage in the pig production system and where most of the CO2 emissions that affect the environment are generated
Summary
The pig production industry has evolved greatly over recent years [1] to increase its efficiency financially and productively. Each production unit, like a farm, has to operate in coordination with the rest of the pig supply chain, and the farmer has to obey the rules from the head office of the company, the so-called integrator [5] This vertically-integrated system leads to intensive farming, with a bigger concentration of manure to manage in limited areas and additional transportation requirements to transfer and move piglets and pigs from one farm to another while they are growing (i.e., increasing total CO2 emissions). This makes pig producers and pig companies more receptive to considering and evolving to greener supply chains, incorporating other criteria other than solely revenues into the traditional objective function In this context, this paper is concerned with fattening farms, these being the last stage in the pig production system and where most of the CO2 emissions that affect the environment are generated.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
