Abstract
Consumers today are focused on safe, organic food. When introduced into the diet of animals, chitosan is able to remove toxic substances, heavy metals, stimulate cellular and humoral immunity, increasing the safety of the livestock. In this regard, the aim of the study was to study the effect of chitosan (group I), ultrafine particles (UFPs) of Fe and Cu (group II) and their combined feeding (group III) on productivity, elemental composition of blood serum and body tissues of broiler chickens. The study was performed on broiler chickens of cross "Arbor Acres" (n = 60) in the conditions of a vivarium. Separate feeding of chitosan and Fe and Cu UFPs is accompanied by an increase in the growth rate of broiler chickens. Their combined use does not give a similar result. Chitosan reduces the absorption of certain elements from the inorganic form of mineral substances. Co-feeding of chitosan with UFPs leads to an increase in the absorption of Fe and its deposition in the liver and feathers.
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