Hlavatchuk, V. A. “OPTIMIZATION OF COW FEEDING BY USING ECOVET MINERAL-VITAMIN PREMIX”. Bulletin of Sumy National Agrarian University. The series: Livestock, no. 3 (October 8, 2024): 19-29. Accessed October 31, 2024. http://snaubulletin.com.ua/index.php/ls/article/view/1157.