Deliboz horses spread widely throughout western Azerbaijan. In 1943 a State Breeding Cooperative was established to improve horse populations of the Republic. Since the 1950s Azerbaijan horses have been improved by Arabian and Tersk sires while Karabakh was bred separately. Crossbreeding involved horses of the Deliboz type. Deliboz horses differ from others by a clean, short head with a broad forehead and narrow nose, a compact heavy neck, a ribbed massive body with a good top line and an even, long back and loin.
Legs are clean and well proportioned and the cannon bone girth is larger than that of other horses.
A typical feature is a peculiar lengthwise fold on the tongue giving the impression of a forked tongue. The Deliboz horses show good working capacity. Dashyuz stud farm has the 140 most typical Deliboz horses including breeding mares with a high proportion of Tersk blood. It is planned to breed them pure but with single back crossing to one or two stallions with little Tersk blood in order to preserve the valuable traits of the crosses.