Correction of productivity and biochemical profile of high yielding cows with the help of energy additives

The purpose of the research was to establish the effect of energy feed additives on the productive and biochemical parameters of highly productive black-and-motley cows during in the period of milking. In the reference period of the experiment, the cows of control and experimental groups received a diet consisting of 34.5 kg of feed mixture,4.0 hay of bone-stock, 1.7 kg of rapeseed meal, 1.0 kg of crushed maize grain, 5.0 kg of fresh grain beer, 0.5 kg BVMK-60-10 and 0.5 kg molasses fodder. In the first 100 days of lactation, in addition to the basic ration, the cows of the first experimental group were fed with Lacto C energy supplement in the amount of 200 g / head / day, the second experimental group - Extima 100 energy feed additive at a dose of 200 g / head / a day. It was established that feeding high-yield cows with energy feed additive “Lacto C” in the rations increased their milk productivity by 8.88 % (P