Abstract:

【Objective】 The study was made to meet government supervision of safe pork production as well as consumer's right to know what they will buy and to protect the public safety of pork food.【Method】This study adopted animal identification, intelligent PDA reading and writing, GPRS, intranet and internet and other information technologies, and proposed a pork tracking and traceability infarstructure based on pork production substrance flow and data flow, and designed the metadata and related databases for farming and slaughtering as well as retailing sector based on pigs intensive farming and backyard farming，and developed three different data-recording systems for different production processes, and finally formed a public network platform for inquiring in light of China's "Animal Identification and Animal Feeding File Management Approach". 【Result】 The farming process information system supplies early warning for the usage of drugs and feed additives on the basis of data of pigs individual and timely uploading all events data to remote central tracing database when pigs are sold. The PDA data acquisition system can collect farming events data for those pigs owned by farmers by mobile and submitted them to the oriented database through GPRS. The web-based Tianjin’s pork traceability platform can integrate the whole labeling and related pork quality data from farming, slaughtering to marketing by online, and set up these data inner relationships, and reached pork tracking from its origin to consumption and its tracing through turn-over direction. 【Conclusion】The developed and/or integrated various identification technologies, designed metadata specifications, three data-recording systems and the formed web-inquiring platform are feasible in pork quality traceability. Some individual technical bottlenecks will be resolved with the development of communication technology. The full implementation of this solution will supply technical support in guarantee of the quality and safety of pork production supervision and meet consumers’ demand.

Key words: animal identification, pork, tracking, traceability, PDA, GPRS