Milk productivity, composition and energy value of milk of primary cows with the use of adaptogens of plants and animal nature

Abstract

Adaptogens were studied, which were administered in the form of ready-made tinctures in the amount of 0.01 ml per 1 kg of animal body weight, followed by dissolution of the calculated volume in 200 ml of water. The drugs were given cyclically for two weeks with a similar break. The balance of the diet was carried out in the program for periods of detention. On the basis of monthly control milkings, milk productivity for 100 and 305 days of lactation was taken into account, the average daily milk yield, coefficients of milk production, stability and usefulness of lactation, the physicochemical composition of milk were determined using general zootechnical methods and mathematical statistical processing. The results of the assessment of milk productivity showed that against the background of first-calf heifers of the third experimental group of black-and-white breed, activation of lactation activity is noted, an increase in casein by 2.65%, also the maximum size of micelles and amounting to 786.84 ° A. Energy value is noted in milk cows consuming drone homogenate and amounting to 73.57 kcal. Thus, the results of comprehensive studies indicate the effectiveness of introducing adaptogens of both plant and animal nature into the diet, but the best effect was obtained from the use of drone homogenate.