The influence of different selenium forms (selenite, biogenic nanoselenium) in a complex with a probiotic on the metabolic parameters of broiler chickens

Selenium, as an important trace element, is part of selenoproteins with growth-modulating properties and multifactorial mechanisms action. The biological effects Se depend on the dose chemical form in which it enters body. Selenium nanoparticles have unique characteristics, including small size, large surface area, solubility multifunctionality. inclusion phytonutrient-functionalized feed expedient due to solubility, protection against oxidation enzymatic degradation, increased residence time, bioavailability. Biogenic selenium nanoparticles, obtained by "green" synthesis methods participation microorganisms plant extracts, are biocompatible less toxic compared inorganic compounds. This study was aimed at studying effect different forms a complex probiotic (L. plantarum) metabolic processes body broiler chickens order provide experimental basis for effective use selenium-containing additives. A total 200-day-old Cobb 500 cross were divided into four groups analog method: K (PC), sodium selenite (0.3 mg Se/kg feed) + (2nd group); biogenic nanoselenium L. plantarum (3rdgroup); nanobioconjugate flavonoids onion peel (group 4). Supplements content protein blood serum, 3rd 4th this difference significant (p<0.05). Compared control, activity alkaline phosphatase all groups, but broilers group, increase probable lipids, uric acid aminotransaminases probably did not differ groups. creatinine serum TBC-active products liver birds lower (p<0.05), amount reduced glutathione (GSH) tissues higher. It has been established that synthesized green technologies non-toxic, biocompatible, antioxidant hepatoprotective properties. results guideline conjugates innovative method strain lactobacilli Plantarum) functional additive improve can be included composition additives poultry. Key words: nanotechnology, synthesis, quercetin, peel, broilers, blood, liver, biochemical indicators.