Rubtsov , Ihor. “Comparative Assessment of Heifers of Ukrainian Black-and-White and Red-and-White Dairy Breeds by Growth, Measurements and Live Weight Gain in Chernihiv Region”. Bulletin of Sumy National Agrarian University. The series: Livestock, no. 1(44) (March 29, 2021): 80-85. Accessed November 22, 2024. https://snaubulletin.com.ua/index.php/ls/article/view/299.