Many Wisconsin dairy farmers are already in line with new federal program aimed at helping agriculture officials quickly track livestock in cases of disease.
The rules that went into effect March 11 require dairy cows to be registered when they are shipped over state lines and outline acceptable forms of identification. Most farmers are likely to use ear tags that assign a number to each animal.
Mark Diederichs is president of the Board of Directors of the Professional Dairy Producers of Wisconsin. He and his partners began using electronic ear tags on their cows eight years ago.
He said it saves time because workers with hand-held devices can scan the tags and immediately pull up animals' records.
Diederichs said many of the state's other, larger dairies also are using them.