LOW CONCENTRATION OF HEAVY METAL SELENIUM EFFECT ON MILK SOMATIC CELL COUNT IN DAIRY COWS
Ivana Davidov , Miodrag Radinović , Zorana Kovačević , Mira Pucarević , Nataša Stojić , Dragica Stojanović
Department of Veterinary Medicine, Faculty of Agriculture, University of Novi Sad, 21000 Novi Sad, Serbia
ivana.davidov@polj.edu.rs
The aim of this study was to determine the influence of low concentration on heavy metal selenium on milk somatic cell count in dairy cows. Selenium acts as a cellular antioxidant in the cell cytoplasm by preventing cell damage. Milk quality is primarily measured through somatic cell count. The experiment included thirty high-yielding Holstein cows. After measuring blood serum selenium concentration of dairy cows, the average selenium concentration in the blood serum was 0.53 ± 0.11 mmol/l and the average somatic cell count was 457 ± 84 (000/ml). The low levels of selenium in blood serum caused increasing number of milk somatic cell count that gives negative correlation according to correlation test. Changes caused by low concentration of heavy metal selenium occur due to marked inflammation process in the cow udder. Results showed that heavy metal selenium has a significant impact on udder heal
Keywords: heavy metal selenium; somatic cell count; dairy cowsovi
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