The effect of experimental probiotic supplements on milk production and milk quality of cows

Scientific and economic experience was conducted on 4 groups of cows of 12 goals, selected by the method of steam-analogues. The different level of feeding of experimental cows had a decisive influence on the level of their milk production. Research has established that over the period of experience, the milk productivity of cows of the experimental groups increased in the second group by 1.47 kg, the third - by 1.97, and the fourth - by 3.27 kg or by 5.6%; 7.5 and 12.5% compared with the control. A tendency to increase the mass fraction of protein in the milk of animals, depending on the nature of their feeding.