Condition of the initial population of black - breed cattle Lyazzat Primbetova, Amantur Bekturov, Chinara Kadyrova, Taalaibek Turdubaev and Tyrgoot Chortonbaev BIO Web Conf., 130 (2024) 07002 Published online: 09 October 2024 DOI: 10.1051/bioconf/202413007002