A stallion is a male horse that has not been gelded (castrated). Stallions are rarely gelded, since they are very docile and can be ridden without problems. The population is now managed by adopting out yearlings, both fillies and gelded colts. In the past, a single gelded (castrated) male was recommended. Stallions are not gelded in Central Asia. In horses, cryptorchidism is sufficiently common that affected males (ridglings) are routinely gelded. Selected horses were branded, gelded, and sold. A horse gelded young may grow taller and behave better if this is done. A male horse is often gelded to make him better-behaved and easier to control. Linc also insisted he be gelded. His difficult temperament was well documented, and might have led to him being gelded. The Mounted Unit maintains 32 gelded horses at the South Shore Cultural Center. Shortly after the race he was gelded. Before his next race Istabraq was gelded. He has also since been gelded.