THE ULTRAFINE MANGANESE PARTICLES EFFECT ON THE GROWTH AND ELEMENTAL PROFILE OF BROILER CHICKENS

The aim of the study is to evaluate the effect of ultrafine manganese particles applied to a carbon carrier (UFP Mn-C) on the growth and elemental profile of broiler chicken muscles. Objectives: to determine the growth effect and productivity from the inclusion of UFP Mn-C in the diet in various dosages; to study the elemental profile of the breast muscle tissue in broiler chickens additionally receiving UFP Mn-C. The experiment was conducted at the Department of Biotechnology of Animal Raw Materials and Aquaculture of the Orenburg State University and the Federal Scientific Center for Biological Systems and Agrotechnology of the Russian Academy of Sciences. 7-day-old broiler chickens of the Arbor Acres cross were randomly divided into 4 groups of 6 heads each. The control group consumed the basic diet – PC-5 and PC-6 (Orenburg Poultry Farm JSC), the experimental groups together with OR received UFC Mn-C in different dosages: I experimental group – 0.2 ppm, II experimental group – 0.4 ppm, III experimental group – 0.8 ppm. UFC Mn-C had a dose-dependent effect on the live weight gain of experimental broiler chickens, with positive growth in the III experimental group (4.5 % higher than the control (P ≤ 0.05)). The increase in dosage was accompanied by selective changes in the concentration of a number of macro- and microelements. In the I experimental group – a decrease in B, Cr, Se, Cd, Sn with an increase in Ca, P, K, Mg, Fe, Si, Li, Sr. Similar results were obtained in experimental groups II and III, where a general increase was noted for Ca, P, K, Na, Mg, Zn, Fe, B, Se, Al and Sr. At the same time, a general decrease in V and Cd was noted in groups II and III. Additional inclusion of UFC Mn-C in the diet of broiler chickens in various dosages has shown distinctive results. A positive effect on growth and concentration of chemical elements in muscle tissues was associated with an increase in the dosage of UFC Mn-C to 0.8 ppm.