Integrating strategic and tactical decisions in livestock supply chain using bi-level programming, case study: Iran poultry supply chain.

Ebrahim Teimoury,Mohammadhosein Babaei,Armin Jabbarzadeh,Yong Deng

doi:10.1371/journal.pone.0185743

Ebrahim Teimoury, Mohammadhosein Babaei + Show 2 more

Open Access

https://doi.org/10.1371/journal.pone.0185743

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Journal: PloS one	Publication Date: Oct 5, 2017
Citations: 7	License type: CC BY 4.0

Affiliation: Iran University of Science and Technology

Abstract

Inventory management has frequently been targeted by researchers as one of the most pivotal problems in supply chain management. With the expansion of research studies on inventory management in supply chains, perishable inventory has been introduced and its fundamental differences from non-perishable inventory have been emphasized. This article presents livestock as a type of inventory that has been less studied in the literature. Differences between different inventory types, affect various levels of strategic, tactical and operational decision-making. In most articles, different levels of decision-making are discussed independently and sequentially. In this paper, not only is the livestock inventory introduced, but also a model has been developed to integrate decisions across different levels of decision-making using bi-level programming. Computational results indicate that the proposed bi-level approach is more efficient than the sequential decision-making approach.

Highlights

With the introduction of the concept of supply chain management in the early 1980s, inventory management was recognized as one of the most important drivers of supply chain
The livestock supply chain includes the processes and steps associated with nurturing the animal from birth until slaughter; while the cold supply chain refers to the processes and steps that take place after slaughter
Therefor, this paper presents a new optimization model with consideration of parameters and decision variables that are specific for livestock supply chain

Summary

Introduction

With the introduction of the concept of supply chain management in the early 1980s, inventory management was recognized as one of the most important drivers of supply chain. Recognizing the importance of perishable inventory in human lives, many researchers have studied mathematical models to optimize perishable products policies in the supply chain [1,2,3,4]. One of the most important types of perishable inventories are protein products. With careful examination of these type of products, it is clear that livestock inventory constitutes an important component in the supply chain of this products. This supply chain is composed of two parts: the livestock supply chain and the cold supply chain.

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