Dynamics of hematological indexes lactating cows at use in their ration of the improved recipes of premixes

Abstract

The purpose. To study in dynamics of influence of author’s recipes of premixes on hematological indexes of lactating cows. Methods. 2 groups of cows were formed using method of groups-analogs. The control group of animals was fed with premix P60-1; experimental group was fed with a premix based on author’s recipe which removed deficiency of macro- and minor- components in basic diet. Results. Productivity of premixes in feeding lactating cows is proved at disbalance in a ration of minor components and mineral substances. Conclusions. The developed recipe of premixes positively influenced growth power and productivity of cows.