INFLUENCE OF THE NEW PREPARATION "PRAZINAL F" ON MILK PRODUCTIVITY AND ON THE BIOCHEMICAL COMPOSITION OF MILK OF COWS OF BLACK-AND-MOTLEY BREED WITH PARAMPHISTOMATOSIS

Abstract

The article gives an assessment of the effect of the new complex anthelmintic preparation "Prazinal F" on milk productivity and on the biochemical composition of milk of cows of black and white breeds with paramphistomatosis. Determination of the optimal dose after milking the cows of the black and white breed of the new preparation "Prazinal F" with paramphistomatosis showed that during the second, third, fourth and fifth months of lactation for milk production, the dose of 25 mg / kg of body weight has the most beneficial effect. During the second, third and subsequent months of lactation after prescribing "Prazinal F" in a dose of 25 mg / kg body weight, the milk productivity of the cows of the experimental groups and, especially, of the third group is increased. The cows of the 3rd group in terms of gross milk yield exceeded the cows of the control group infected with paramphistomatosis by 36,0%. In comparison with the control infected group, the difference for the third month of lactation, respectively, was 2.9-3.7-4.5 kg in favor of the experimental groups, 3.0-3.5-4.4 kg for the fourth month and the fifth month – 2,6-3,8-4,6 kg. The use of "Prazinal F" in the paramphistomatosis of cows of black and motley breed at a dose of 25 mg / kg of body weight, once allowed to increase the content of iodine, cobalt, magnesium and iron in milk by 31.7-45.6%. The appointment of the drug "Prazinal F" in the paramphistomatosis of cows of black and motley breed at a dose of 25 mg / kg of body weight, once allowed to increase the production of cow's milk, significantly enriching it with nutrient microelements.