sentences:  On that same day, Chinese authorities shut down Binzhou Futian Biology Technology Co. Ltd., and detained the manager, Tian Feng.Feng denies responsibility, saying that he "didn't do anything wrong," and denying that he even knows what melamine is.On April 26, the FDA announced that over 6,000 hogs had been quarantined on farms in California, New York, South Carolina, North Carolina, Utah, Kansas, Oklahoma and Ohio.