Morphological parameters of Cows blood when feeding the feed additive "Reasil Gumic Heals"

The article presents the results of the action of a feed additive containing humic substances, humic acids and fulvic acids, "Reasil Gumic Heals" on hematological blood parameters of dairy cows. The feed additive "Reasil Gumic Heals" is made from the natural substance leonardite, a product of the humification of ancient plants. The experiment was carried out at the dairy production of the Krasnaya Zvezda dairy Complex in the Isakli district of the Samara region. The purpose of the research is to determine the effect of a feed additive containing humic acids, "Reasil Gumic Heals" on hematological blood parameters of dairy cows during the dry season. To carry out the experiment, 4 groups of animals were formed among the productive livestock (control, experimental-1, experimental-2, experimental-3) with 15 heads each. During the dry period, cows from the experimental groups received, in addition to the basic diet adopted on the farm for the dry department, a feed additive based on humic acids, Realisil Gumic Heals, in the following doses: 60.0 g for the experimental group of animals, 80.0 g for the experimental group of animals, and 100.0 g for the experimental group of animals.3 groups of animals, respectively. The control group of animals was on the main diet of the dry period without the addition of top dressing. Blood for the study was taken twice in the morning before feeding from 5 heads of animals from each group participating in the experiment. The first blood sample was taken on the day of the drying off, the second – 3 days before the expected calving date. The obtained results reliably confirm that the introduction of a feed additive based on humic acids "Restacil Gumic Heals" in the dry season at a dosage of 80.0 g per head per day improves the morphological parameters of blood in terms of the average volume of red blood cells, hemoglobin, the average concentration of hemoglobin in red blood cells, leukocytes, neutrophils and lymphocytes. The results of the blood test of animals of the 2nd and 3rd experimental groups did not differ significantly.