Authorities have filed more charges against a man already charged in connection with the discovery of hundreds of dead, ailing or neglected cattle at his farm in southern Nebraska's Fillmore County.

Court records say 30-year-old Aaron Ogren now faces one felony count of theft, nine felony counts of prohibited sale of livestock and 30 felony counts of cruelty to animals. His next court hearing is scheduled for May 29 in Exeter. His attorney, Bradley Kalkwarf, declined to comment Thursday.

The new charges focus on the prohibited sale of livestock. Prosecutors say Ogren sold bulls he didn't own.

Local and state officials removed about 200 surviving head of cattle from the feedlot about 3 miles (5 kilometers) northwest of Exeter. Another 200 cows were dead when investigators arrived in March.