Milk productivity, quality and chemical composition of cow milk when used in the diet of fodder additives "Lacto-Garant", "SP-60" and "Sel-Plex"

Evaluated the effect of biologically active feed additives "Lacto-Garant", "SP-60" and "Sel-Plex" used on the dairy farm KFH "Victoria" in the Chistopol district of the Republic of Tatarstan. In the experiments, cows of the Holstein-Friesian breed of the second-fifth lactation were used. The studies revealed the effect of increasing the average monthly milk productivity of animals when the "Lacto-Garant" drug was turned on by 5.36 %, "SP-60" by 4.5 %, "Sel-Plex" by 4.9 %. The results of a study of the chemical composition of milk in cows whose diet contained feed additives showed an increase, compared with the control, in the protein content of 0.2-5.3 %, fat by 0.3-6.2 %, lactose by 0.4- 4.3 %, calcium - by 0.6-7.2 and phosphorus - by 1.0-14.7 %. Thus, the inclusion of the feed additives "Lacto-Garant", "SP-60", and "Sel-Plex" in the diet of cows contributes to an increase in milk productivity. This improves the chemical composition of milk and its biological value by increasing the content of protein, fat, lactose, calcium and phosphorus.