Comparative evaluation of the influence of tissue biogenic stimulants on the level of milk production of cows

Abstract

The research findings on the influence of tissue biogenic stimulants on cow milk producing ability levels are discussed. The experiment was conducted on the farm of the Experimental Station “Opytnaya stantsiya Novotalitskoye” (the branch of the Federal Altai Scientific Center of Agro-Biotechnologies) in the Charyshskiy District of the Altai Region. It involved four groups of 10 Simmental cows (with the average milk production of 20.7 ± 1.07 kg per head, in their second lactation). The experiment lasted 2 months. The animals in the control group were administered a physiological saline solution at a dose of 22.5 mL per head, 4 times, two weeks apart. The lactating cows in the 1st trial group were administered Biostimulginum veterinary medicinal product at a dose of 30 mL per head, 4 times, a week apart. The 2nd trial group received the ASD-2 Fraction immune stimulant at a dose of 2 mL per head combined with Eleovit immunostimulating vitamin complex at a dose of 10 mL per head, 4 times, a week apart. The 3rd trial group received the tissue biogenic stimulant at a dose of 22.5 mL per head, 4 times, two weeks apart. The physiological saline solution and the studied products were administered subcutaneously in the lower third of the neck region. The application of the tissue biogenic stimulant had the greatest influence on increasing the cow producing ability levels. The milk yield from these cows was by 4.0-7.4% higher (p < 0.05), and the yield of milk protein and butterfat increased by 2.7% and 4.9% (p < 0.05), respectively, compared to the corresponding values in the control group. The application of ASD-2 Fraction combined with Eleovit contributed to increased milk producing ability by 2.3-5.1% (p < 0.05). The administration of Biostimulginum to cows during the first 100 days of lactation did not have any significant effect on increasing their milk producing ability level.