As a old country boy who used to raise livestock I can tell you a tale or two about herd management. Now I am not going to bore you with the details but 20 years ago the primary way we tracked our livestock was by inserting tags into their ears. Then when they where due for shots or checked for weight gain etc we did it with pen and paper and read all those ear tags.
The farmer of today is getting smarter and using smart technology like RFID chips to track animals from birth to supermarket meat shelves. I only wish we would have had that technology 20 years ago. The advantages are many and the uses to many to talk about in this forum but I can guarantee you that just like automobiles are now tracked for repairs and servicing so will the meat on your table. I would guess within 2-3 years we will be able to scan and RFID chip that is on a meat package and get all of the particulars about the animal it came from. Picture, Genealogy, Medicines received, Feeds fed etc. This will force farmers to become smarted and in turn the food we consume should be safer [Lockergnome] [eslkid]