Officials with Ashford Stud confirmed on Thursday that first-year stallion A P Valentine is experiencing fertility problems.The son of A.P. Indy out of Twenty Eight Carat, by Alydar, purchased by Ashford parent Coolmore in October 2000 for an amount reported to be $16 million, entered stud at the Versailles, Ky., farm with a live foal fee of $15,000. The Nick Zito-trained colt won 2-of-4 starts at 2, including his only career stakes win in the Champagne (gr. I), after which Coolmore bought his breeding rights from Rick Pitino's Celtic Pride Stables. At 3, A P Valentine won just once in nine starts but finished second behind Point Given in the Preakness Stakes (gr. I) and Belmont Stakes (gr. I). He defeated Point Given in the Champagne.A statement on A P Valentine's low fertility rate from Ashford said "specialists are monitoring the situation and the matter is under constant review."