PSXVI-9 - The effectiveness of using organomineral feed additive in broiler chicken diets

Currently, natural biopolymer chitosan is of great interest as a component of feed additives. The aim of the study is to assess the effect of chitosan and ultra-small particles (UP) of copper and iron on nutrient absorption and the liver elemental composition of The Cross Irishmen's Arbor Acres (n q 60). In the experiment, chickens of experimental groups were injected: I - chitosan in a dose of 1 mg / kg of feed (Evalar, Russia), II - FeSO4 × 7H2O were replaced on Fe UFP at a dose of 17.5 mg/kg of feed (Advanced Powder Technology, Tomsk) and CuSO4 × 5H2O with Cu UFP at a dose of 1.7 mg/kg of feed (Platinum Ltd., Moscow); in the III experimental group Fe and Cu introduced together with chitosan. The control group's diet did not contain any additives. The elemental composition of organs and tissues was determined by atomic emission (Optima 2000V) and mass spectrometric (Elan 9000; Perkin Elmer, USA). The analysis showed that the absorption of raw fiber increased with separate feeding of chitosan (group I) and UFP (group II) by 5.9 and 10.7% relative to control. The joint use of chitosan and UFP (Group III) reduces this rate by 21.5% compared to control. The same trend is observed with the absorption of carbohydrates, which in the first group increased by 3.6%, and in the third group, on the contrary, decreased by 13%. In all the experimental groups there was a tendency to increase the concentration of iron in both the liver and the pen. The use of chitosan and UDC in the diets of broiler chickens is appropriate and contributes to increasing the digestibility of feed and increasing productivity. The article was published as part of the implementation of the theme No. 0761-2019-0005.