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China expands pilot system to track food shipments
date:Jun 28, 2013
rts said the system would have only limited use because it did not include China's 200 million farmers, where health standards can be low and regulation often has little reach.

Many large retailers run their own audits on what they source from farms.

If you only go as far back as the slaughter houses, it's of some value but not much value. The decision to spray a certain pesticide or give an animal a specific antibiotic will usually be taken by a fairly uneducated farmer, said John Chapple, a

12/19 18:16