The unfluence of selenium preparation on nutrition digestion and hematology results and calves productivity
The carried out tests with young bulls of 12-th to 18-th months using in rations of nutrition additions «DAFS-25», «SEL-PLEX» with 0,35-0,66 dry matter rate of feeding has shown positive effect in increasing of young cattle growth to 9,7-12,2% and meat calorific value to 0.37-0,58 MJ.