Shamshidin, Alzhan, Orinbasar Alshinbaev, and Aidos Mussabekov. “Correlation Between Qualitative Indicators of Holstein sire’s Semen”. Scientific Journal of Zoology 6, no. 11 (November 18, 2017): 60-63. Accessed April 19, 2024. http://www.sjournals.com/index.php/sjz/article/view/1572.