Ibadullaeva Amina Saginbaevna, Yusupov Otajon Yoldosh ogli, Bazarbaev Ruslan Djubatkhanovich, Turdimuratova Gulida Nukusbay kizi and Taumuratova Miyasar Kuralbay kizi 2021. PRODUCTIVITY CHARACTERISTICS OF HOLSTEIN COWS IN BREEDING GROUPS. Web of Scientist: International Scientific Research Journal. 2, 12 (Dec. 2021), 76–79. DOI:https://doi.org/10.17605/OSF.IO/X3GAU.