Honchar , A. “Influence of Hunting Stimulation and Ovulation Synchronization on Morpho-Biochemical Indicators of Holstain Cow Blood”. Bulletin of Sumy National Agrarian University. The Series: Livestock, no. 2 (41), Oct. 2020, pp. 40-46, doi:10.32845/bsnau.lvst.2020.2.7.