Ushkova O.J. 1
Batanov S.D. 1
1 Izhevsk state agricultural academy
The data on influence studying about probiotic, prebiotic and symbiotic additives on dairy efficiency and reproductive qualities of cows holmogor breeds are cited. For scientifically-economic experience 4 groups pregnancy (7-8 month pregnancy) cows have been selected. Such indicators as were analyzed: a yield of milk for 305 days of a lactation, a fat and fiber mass fraction in milk, an exit of dairy fat and fiber for a lactation, a productive index, an insemination index, duration of the service-period, between sorts the period, factor of reproductive ability, dynamics of live weight and daily average gain the received young growth. It has been thus revealed, that inclusion in a diet of cows of biologically active substances promoted dairy efficiency of cows, an exit of dairy fat and fiber for a lactation has authentically increased, reproductive qualities of cows have improved.