THE EFFICIENCY OF DIHYDROQUERCETIN AND ORGANIC IODINE IN REDUCING THE ACTION OF SUMMER HIGH TEMPERATURES ON THE BODY OF DAIRY COWS ON THE BACKGROUND OF DIETARY INCLUSION OF FEED ENERGY

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YUrij P. Fomichev

Abstract

In terms of spring-summer grazing period and high temperatures that exceed the comfort zone of 5-15 C, was used in the diet of dairy cows flued energetic feed (FEF), dihydroquercetin (DQC) and organic iodine (OJ) with the aim of increasing the capacities and adaptation of the organism to extreme factors of the environment. DQC and OJ had a normalizing effect on energy metabolism and, in general, on the metabolic health of cows, a specific effect on milk production. Carbohydrate-lipid metabolism in cows of the control group was characterized by low glucose, high content of NEFA and phospholipids in comparison with cows of the experimental groups, which tended to normalize by 3 months of lactation. Application of FEF separately and in combination with an antioxidant and organic iodine allowed to increase the content of glucose, cholesterol, to reduce the content of NEFA, phospholipids and triglycerides as a result of which the index NEFA/cholesterol decreased; reduced the content of bilirubin, TBA-AP and increased the content of ceruloplasmin, which indicates the normalizing effect of these biologically active substances. Serum levels of cortisol and thyroxine tended to increase in the experimental groups of cows in relation to control throughout the study period. Morpho-hematological parameters in all groups of cows were within the physiological norm and close. Milk productivity and milk quality in cows during the spring-summer period had differences between groups. In cows of the control group, the average daily yield for 5 months of lactation was 22.7 kg with a fat content of 3.79% and protein of 2.94%: in cows of the 1st experimental 21.6, 3.90, 3.02 and the second experimental group 20.8, 3.89 and 3.04, respectively.

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FOMICHEV, YUrij P.. THE EFFICIENCY OF DIHYDROQUERCETIN AND ORGANIC IODINE IN REDUCING THE ACTION OF SUMMER HIGH TEMPERATURES ON THE BODY OF DAIRY COWS ON THE BACKGROUND OF DIETARY INCLUSION OF FEED ENERGY. Journal of Agriculture and Environment, [S.l.], n. 3 (11), sep. 2019. ISSN 2564-890X. Available at: <http://jae.cifra.science/article/view/168>. Date accessed: 24 oct. 2019. doi: http://dx.doi.org/10.23649/jae.2019.3.11.9.
Section
Animal husbandry
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