Physical and chemical indicators and technological properties of cowʼs milk depending on the linear origin

Relevance . Milk is not only one of the most consumed food sources for Russian citizens, but also a valuable raw material production. Its composition influenced by many factors, including origin. To obtain it, dairy cattle are used, Holstein, created absorbing breeding stock domestic black-and-white bulls Holstein breed. The study physicochemical parameters and technological properties milk cows new genetic formation in Middle Urals zone both scientific practical interest. Results As result research, it was found that best indicators nutritional value were Montvik Chieftain line, calorie content which higher than other lines 1.7 1.3%. It had more MJ, MDB, positive effect on dry matter SOMO this line. Significant differences fat (MJ) protein (MDP) cows, as well casein favor obtained from line (р ≤ 0.05–0.01, respectively, terms indicators). increased group allows us to speak about effectiveness its use cheesemaking, confirmed cheese suitability rennet coagulability. In duration clotting (the clot formation) shorter 7–8 min. according Dilanyan 7'43''–10'11'' — N.V. Barabanshchikov).