Scare could hone cattle tracking
Efforts to create a centralized database, which exists in some countries, have been slowed so far by disputes over who would maintain the database and who would bear its cost.
Such a database could let agricultural officials determine within hours where a sick animal came from and where it went a crucial step in a disease outbreak or a terrorist assault on the food supply.
Agriculture Secretary Ann Veneman said Tuesday that the government would speed development of the system but offered no details.
For now, inspectors often must rely on paper records or a hodgepodge of data maintained by meat producers and breeders. After the recent mad cow discovery in Washington state, officials needed several days to determine where its meat had been sold and encountered discrepancies in U.S. and Canadian records.
"It's very difficult and probably not possible for them to go to a particular animal and say that animal came from that particular farm," said Leon Thacker, a veterinary pathologist at Purdue University.
Technology stands ready to automate the process.
Radio-frequency identification (RFID) tags on cattle ears can maintain reams of data about an animal's existence, including its breeding, age, weight and medical history. The tags can be automatically read, sending their data directly to a computer database, by sensors placed at feed lots, slaughterhouses and other points along the chain of livestock ownership.
One company, Optibrand Ltd., further tightens the process with retinal scans of cattle to confirm their identity. Optibrand's scans are performed with readers that have global-positioning chips to record the animal's location.
Optibrand, based in Fort Collins, Colo., announced a five-year deal Tuesday to supply its technology to Swift & Co., a leading meat producer. Swift spokesman Jim Herlihy said the company will use the retinal scans in its feedlots and encourage its suppliers to embrace them as well, to make the entire life of livestock more easily traced.
Another approach is offered by Digital Angel Corp., which makes implantable chips that are used to identify lost dogs and cats and also in some cattle herds. Digital Angel, based in South St. Paul, Minn., touts the fact that the chips are unlikely to be lost or damaged.
RFID tags also are considered sturdier and less susceptible to fraud than the plastic, numeric ear tags commonly used now to identify livestock. And because the radio tags or other electronic means can produce detailed information about particular animals, they can help producers of organic or other high-quality beef prove that their meat is worth a higher price.
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