Khmelnychyi, L. and Bardash , D. 2019. Indicators of cows longevity of Ukrainian Red-and-White dairy breed depending on the share of Holstein breed heredity. Bulletin of Sumy National Agrarian University. The series: Livestock. 4(39) (Dec. 2019), 13-19. DOI:https://doi.org/10.32845/bsnau.lvst.2019.4.2.