RubtsovI.О., Popsui, V.V., Korzh, O.O. and OparaV.О. 2023. THE INFLUENCE OF GENETIC UNITS ON THE INDICATORS OF GROWTH AND FORMATION OF EXCRERIER IN HEIFFS OF THE UKRAINIAN BLACK-SPOTTED DAIRY BREED. Bulletin of Sumy National Agrarian University. The series: Livestock. 2 (Jun. 2023), 45-50. DOI:https://doi.org/10.32782/bsnau.lvst.2023.2.7.