Deputy director for scientific affairs of the Scientific Research Institute of Animal Husbandry of the Ministry of Agriculture of the Republic of Azerbaijan Ph.D., Assoc. Aida Askerova, Tural Abbasov, head of the laboratory "Breeding of ruminant and small cattle animals, birds" of the "Genetics, biotechnology and selection" department and Dilara Sultanova, senior laboratory assistant of the same laboratory, published in the 1,790 high impact factor magazine ""Elmi ish" "Premix and feed ration of Holstein-Friesian cows" the effect of using feed yeast on milk productivity" was published.