Ayghyr kosu is a rite succeeding the milking. Young men lead stallions (ayghyr’s) out and keep them in check until women take milk away with them. Then the bridles are taken off and the stallions join their herds.\nKazakh spring horse-breeding rites mark the end of the old and the beginning of the new yearly horse-breeding cycle. Rooted in the traditional knowledge of nature and in the millennia-aged close relations between man and horse, these rites involve skills inherited from the nomadic ancestors and adapted to the present day reality. The festive rites compiles of the triade: (1) .‘Biye baylau’; (2) ‘Ayghyr kosu’; and (3) ‘Kymyz muryndyk’.\n‘Kymyz muryndyk’ (metaphorically, ‘initiation of koumiss’) is the 'first koumiss sharing' rite, opening a season of its making and drinking.

Ayghyr kosu is a rite succeeding the milking. Young men lead stallions (ayghyr’s) out and keep them in check until women take milk away with them. Then the bridles are taken off and the stallions join their herds.\n\nTraditional spring festive rites of the Kazakh horse breeders – taking place in Terisakkan Village – mark the end of the previous and the beginning of the new yearly horse-breeding cycle. Rooted in traditional knowledge about nature and the age-old relations between man and horse, the rites involve skills inherited from nomadic ancestors, adapted to present-day reality. The rites take around three weeks in total, until the koumiss sharing ceremonies, which take place in every household, are over. The rites open a new yearly cycle of reproduction and manifest traditional Kazakh hospitality. Faced with the forced transition in the twentieth century from a nomadic way of life to a settled one, bearers have adapted the traditional form of horse breeding to meet present-day conditions to ensure its continued viability.

Ulytau is the geographic and historical center of Kazakhstan where the Kazakh Khanate appeared. Central Kazakhstan is rich in historical monuments. The history and traditions of Kazakh horse breeders have been maintained since the Paleolithic times. The traditions include: biye baylau, separating dairy mares from the shoal or the feast of the first milking; ayghyr kosu, joining a stallion to the herd or the stallion’s wedding; and kymyz muryndyk, beginning to make and drink kymyz or festive of the first kymyz. Inextricably linked with one another, these traditions mark the beginning of a new horse-breeding cycle and form an integral part of Kazakh intangible cultural heritage.

Ulytau is the geographic and historical center of Kazakhstan where the Kazakh Khanate appeared. Central Kazakhstan is rich in historical monuments. The history and traditions of Kazakh horse breeders have been maintained since the Paleolithic times. The traditions include: biye baylau, separating dairy mares from the shoal or the feast of the first milking; ayghyr kosu, joining a stallion to the herd or the stallion’s wedding; and kymyz muryndyk, beginning to make and drink kymyz or festive of the first kymyz. Inextricably linked with one another, these traditions mark the beginning of a new horse-breeding cycle and form an integral part of Kazakh intangible cultural heritage.