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【正文】 ality of the segmentation is a necessary prerequisite for differentiated marketing. conducive to quality and safety of agricultural products and food tracking, reducing the cost of food and agricultural products recall. Many panies have used the food supply chain tracking systems to minimize food safety system deficiencies may result in potential losses. Suppliers often have a strong economy driven, when discovered food safety hazards and quality problems are, they tend to take measures to avoid food quality and safety issues to the panies themselves, or have a negative impact on the brand. Based on the food supply chain tracking can help businesses identify and reduce the time to clean up the food in question, for many w foreign panies to reveal identifying information related to food packaging, to facilitate the identification of consumers and identified. For example, in the United States requested the recall of most food and agricultural products have been released in the United States Department of Agriculture Food Safety and Inspection Service39。s official website for consumers based on food packaging, identification information to determine the question of food and agricultural products. Some panies are using advanced RSS bar code system and EAN / UCC Global unified identification system, more specifically reveal the identity of the food supply chain information, such as the product of each seed, fertilizer, use of antibiotics, production time, production lines, production , the production technology used and the production order, and so on. Therefore, a product if there are problems, these identification information will be able to play a significant role. Currently, the EU has adopted EAN / UCC system, successfully carried out on beef, vegetables and other food tracking research. By using EAN/UCC128 bar code symbol, GLN (Global Location Number) to the food supply chain and the whole process of product attribute information and participants information for effective identification. Tracking and traceability in the food, the requirements of the supply chain process in every aspect, not only to plete the processing of their products for identification, but also to collect the necessary processing of food materials has been on the identification information, and all information identified in the processing of finished products, to prepare for the next part of a process or consumer use, in order to effectively solve the supply chain link between the weak, difficult to track and trace the problem, but also for panies to reduce by lack of clear information and good food will be mixed in with the poor quality of food processing with the possibility of highquality food. w 3． will help enhance and improve the supply side of logistics management. For businesses, the management of production logistics and trackrelated retail information (such as bar code), to help businesses understand their food supply chain, logistics and outflow conditions for the supply chain for effective management of logistics flows. In particular, some businesses have adopted based on the quality and safety of the food supply chain of hightech tracking system, such as farmers use electronic ear identification cards and related data collection to track the immunization records of food and agricultural products, health records and breeding records. The food supply chain information can also make food or agricultural products in the market for its consistent quality and price. However, the implementation of all food and agricultural products quality and safety of the food supply chain tracking is not necessary. Van Weele, according to market information on agricultural and food needs of the food supply chain information to determine the track width, depth and accuracy. Similarly, panies in the food supply chain information to track width, depth and accuracy also reflects on the quality and safety of its food supply chain costs and benefits of an integrated approach. Because the information track width, depth and accuracy of a determinant of business investment in the food supply chain integration and cost. Only when the benefits outweigh the costs, the firm chosen width, depth and accuracy is the implementation of supply chain quality and safety of track power and assurance. 蒞蕆蟻膃莄薀袇聿莃螞蝕羅莂莁裊袁蒁蒄蚈膀蒀薆袃肆葿螈蚆肂葿蒈羂羈蒈薀螄芆蕆蚃羀膂蒆螅螃肈薅蒅羈羄膂薇螁袀膁蠆羆腿膀荿蝿膅腿薁肅肁膈蚄袈羇膇螆蝕芅膇蒆袆膁膆薈蠆肇芅蝕襖羃芄莀蚇衿芃薂袂羋節(jié)蚄螅膄芁螇羈肀芁蒆螄羆芀蕿罿袂艿蟻螂膁莈莁羇肇莇蒃