Kosilov, V., Rakhimzhanova, I., Rebezov, M., Sedykh, T., Kubatbekov, T. and Abdurasulov, A. 2023. THE EFFECTIVENESS OF GROWING AND FATTENING HEIFERS OF THE BLACK-AND-WHITE BREED AND ITS CROSSBREEDS WITH HOLSTEINS AND SIMMENTALS. Journal of Osh State University. Agriculture: agronomy, veterinary and zootechnics. 4(5) (Dec. 2023), 158–163. DOI:https://doi.org/10.52754/16948696_2023_4_23.