Atypical myopathy is a highly fatal muscle disease caused by hypoglycin A, a toxin found in sycamore maple seeds.

Danish researchers recently observed that foals that watched their mothers calmly handle scary objects ended up being less fearful themselves.

“The surface has been very safe,” said Rick Arthur, DVM, equine medical director for the California Horse Racing Board.

The colt will undergo surgery to repair a condylar fracture in his left front leg, trainer Mike Maker said late Friday.

Bayern outlasted Toast of New York and California Chrome in a thrilling stretch duel Nov. 1 at Santa Anita Park, in Arcadia, California.

The Breeders’ Cup World Championships will be held for the first time under reforms included in the National Uniform Medication Program.

Nearly 300 previously affected premises in that state have been released from quarantine.

Facing older rivals for the first time, Winchell Thoroughbreds’ Kentucky homebred daughter of Tapit scored by 1 1/4 lengths over Don’t Tell Sophia and Iotapa with jockey Rosie Napravnik aboard for trainer Steve Asmussen.

The staff at UC Davis’ drug testing lab runs approximately 70,000 samples a year looking for evidence of performance-enhancing and other prohibited drugs.

Dr. Paul Morley and colleagues examined existing studies on furosemide and concluded that there is high-quality, albeit limited, evidence that the drug is effective in reducing the incidence and severity of EIPH in racehorses.

Drs. Larry Bramlage and Wayne McIlwraith will be available to provide timely health reports to the media and viewing audience regarding the athletes in each race.

The San Felipe Pueblo will employ porcine zona pellucida, or PZP, in accordance with the recommendations of a recent National Academy of Sciences report.