From NHK Kabun (science and culture division) Blog's tweet on July 22:
In response to the radioactive rice hay that's been fed to the meat cows, the council that manages the Yonezawa-gyu (cow) brand in Yamagata Prefecture has decided to halt the auction for the remainder of this month and stop the shipment of cows voluntarily. This voluntary halt of shipment is spreading in the beef producing areas outside Fukushima Prefecture.
Matsusaka-gyu in Mie Prefecture has been detected with radioactive cesium, though well below the provisional safety limit of 500 becquerels/kg, which by the way allows for the radiation from radioactive cesium up to 5 millisieverts per year.
Last to be affected by this radioactive beef/hay scandal: Kobe-gyu anyone?