Zheliznyak I, Voitenko S, Karunna T. Possibility of increasing dairy productivity of cows of Ukrainian black-spotted dairy breed due to breeding and technological factors. . ls [Internet]. 2019Dec.23 [cited 2024Apr.19];(4(39):49-6. Available from: https://snaubulletin.com.ua/index.php/ls/article/view/143