Zbrodko, Y. A., Yerezhepov, D. A., Baltabaev, B. Z., Zhomartov, A. M. and Musayeva, A. S. (2012) “Dairy productivity genetic potential of holstein and brown breeds Sires in Kazakhstan”, International Journal of Biology and Chemistry, (4), pp. 46–51. Available at: https://ijbch.kaznu.kz/index.php/kaznu/article/view/66 (Accessed: 2 May 2024).