It is widely accepted that Quality Management Systems approach is indicated to ensure quality of products and services. Furthermore, Total Quality Management, Six Sigma, ISO Standards and Hoshin Kanri have established as important management systems for quality guarantee in many production processes. Unfortunately, these systems are not familiar to agribusiness companies. The aim of this study is to analyze the benefits of application of traditional QMS in food supply chains. For the purpose of analysis, this paper investigates a case study in a Poultry Slaughterhouse company. The results showed that whether the company adopted the traditional QMS, it was able to solve the problem of temperature variation in the freezing tunnel in a short period an effective way. This article is part of a work to identify Supply Chain Quality Management applications in agribusiness companies.