State regulators in New York have begun an investigation into undernourished mares that were given away by Thoroughbred owner and breeder Ernie Paragallo.

The New York State Racing and Wagering Board will examine the circumstances under which the horses were given away by Center Brook Farm in upstate New York, as well as ownership questions that have arisen concerning the horses. The investigation includes a subpoena that will require Paragallo to answer questions about his knowledge of the matter.

Racing board chairman John Sabini also called on the state’s Thoroughbred Breeding and Development Fund to halt any incentive award payments to Center Brook Farm, Paraneck Stable, or Paragallo while the investigation is under way.

“As New York’s racing regulator, the board has a duty to protect the public’s interests and to ensure that its licensees are of fit character,” racing board spokesman Joseph Mahoney said in a written statement