Lipizzan Stallion (IMAGE) Cell Press Caption This photograph shows a Lipizzan stallion named Conversano Sessana, born in 2001.The Y sequence that is needed as a template to detect variants in any horse is generated from a stallion of this breed. Credit Spanische Hofreitschule Wien Usage Restrictions Credit Required. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.