Fedorovych , Y., Fedorovych , V., Mazur , N., Bodnar , P. and Fil , S. (2019) “The influence of environmental factors on the dairy productivity of cows”, Bulletin of Sumy National Agrarian University. The series: Livestock, (3 (38), pp. 44-53. doi: 10.32845/bsnau.lvst.2019.3.7.