“Smartamine” feed additive use in dairy cows ration

The article gives the results of methane-containing feed additive use on productive and reproductive characteristics of dairy cows, as well as physical and chemical, and technical properties of milk. Feeding 15 gr of Smartamine feed additive per a head made an increase in milk yield capacity by 13% in keeping the quality of obtained products, as well as optimization of reproductive abilities of cows and their health state.

Immunogenetic markers of economically useful features in black-and-white cattle

Many researches have revealed the interdependence of erythrocyte antigens with milk productivity and reproductive ability features. However, there are different antigen factors connected with economically useful features in different herds and breeds. The aim of the research is to establish interdependence of economically useful features with blood group antigens. For this purpose, the estimation of immune genetic status in black-and-white cows has been conducted, and antigen-markers of high milk productivity and animal reproductive ability have been identified.

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