A New Intra-Breed Type, "Mamyr-Aktobe," of the Kushum Breed of Horses of the Aktobe Population

The Kushum breed is one of the top breeds in the structure of horse breeds in the Aktobe region. In terms of numbers, it ranks third after the Kazakh and Mugalzhar breeds. The Kushum breed in the Aktobe region compares favorably with a number of horse-draft factory breeds in terms of early maturity, fertility, high meat, milk productivity, and economy of keeping. This article describes a new intra-breed type, the “Mamyr-Aktobe” type of the Kushum horse breed of the Aktobe population. The structure of the intra-breed type of Mamyr-Aktobe of the Kushum breed includes three factory lines of stallions: 118 Krepysh 33-64, 116 Grom 98-58, and 137 Samotsvet 77-73 tested in 2010 and 2015 (Samotsvet) and patents No. 187,186 and No. 586were obtained for them. Adult stallions of a new intra-breed type are characterized by high measurements and live weight: 159.7-165.3-202.5-21.0 cm and 626.5 kg and massiveness - 153.8 and exceed the breed standard in live weight by 126.5 kg or by 25.3%, according to the massiveness index by 31.8%, and mares, respectively: 155.2-159.1-187.8-19.8 cm and 531.0 kg and massiveness - 165.2 and also exceed the breed standard in terms of live weight by 71.0 kg or 15.4% and terms of massiveness index by 7.9%.