Published: Nov 08, 2010 4:34 PM EST
Updated: Nov 08, 2010 1:34 PM EST

EBRO, Fla. (AP) - Starvation and dehydration have been ruled the causes of death for the 32 greyhounds found at a Panhandle greyhound race track.

The necropsy results come a week after the dogs' trainer was arrested and charged with 37 counts of felony animal cruelty - one for each dead dog, plus five counts for emaciated animals that were still alive. Ronald Williams is being held at the Washington County jail on $74,000 bail. According to arrest reports, he told deputies the dogs were fine when he checked on them two days earlier. It's unclear whether he is being represented by an attorney.

The dogs were found after a local greyhound adoption group alerted authorities that Williams had brought in eight underweight dogs, triggering an investigation by the Florida Department of Pari-Mutuel Wagering.