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The debate around the use of the value chain or supply chain approach has been present for more than a decade in academic and organizational fields, with arguments for and against each of these perspectives. The study supporting the results presented in this paper aims to analyze both approaches and their evolution critically. For this, the authors start from the study of the term logistics as the root of the research, which leads to the subsequent examination of the approaches under analysis. The elements that justify using one or another perspective are presented, and the arguments for why using the value chain approach is considered more successful under current conditions. Finally, it concludes with a conceptualization proposal for the term value chain. [ABSTRACT FROM AUTHOR]

This paper is intended to study the poultry value chain in Cuba, starting from a proposal made by the Poultry Management of Ministry of Agriculture. First of all, the basic principles to have in mind for using an approach of value-added chains in poultry sector in Cuba are analyzed, and at the same time, a characterization of the production of hen eggs and chicken meat, having in mind its antecedents and present situation, is made. Both productions are described, making emphasis in their structures and peculiarities. This allows identifying the critical links that slow down the progress of this activity. Actions that allow achieving the production and quality standards that govern poultry farming internationally today are proposed, and finally potentialities of the appropriate implementation of the chains approach in poultry sector in Cuba are shown. [ABSTRACT FROM AUTHOR]