Application of the feed additive «Active Mix» VMG 500/600 in heifers during the perinatal period

When there is a deficiency of vitamins and microelements in the body of animals, liquid feed additives are widely used. However, they are characterized by disadvantages associated with antagonism and insufficient absorption of the active substances, as well as the occurrence of undesirable chemical reactions between them. When creating the liquid high-calorie vitamin and mineral feed additive «Active Mix» VMG 500/600, new approaches were used to significantly eliminate these problems. To evaluate the effectiveness of its use, a study was conducted on 20 heifers of the Holstein Kholmogory breed during the perinatal period. The experimental and control groups each included 10 animals selected on the principle of analogue pairs. During this time, the animals of the experimental group received a feed additive in a dose of 250 ml (300 g) per head per day. Initially, in heifers of both groups, the content of vitamins and microelements in the blood was reduced. Subsequently, in animals receiving the feed additive, it significantly increased in relation to animals in the control group. At the same time, calving occurred with fewer complications, and colostrum production increased. All this indicates the effectiveness of using a high-calorie vitamin and mineral feed additive during this period of animal life.