The effect of gadolinium and lanthanum orthovanadate nanoparticles on the content of vitamins (B2, A, E) and trace elements (Cu, Zn, Se) in the blood serum and liver of broiler chickens

Abstract

As a result of scientific progress, substances in the nanoscale state are increasingly being introduced into various areas of human activity, including animal husbandry (poultry farming). In particular, nanotechnology is used successfully to enrich food products with minerals, vitamins, antioxidants, that is, they can increase the bioavailability of nutrients by oral administration. In this study, the content of vitamins (A, E, and B2 ) and trace elements (Zn, Cu, and Se) in the blood serum and liver of broiler chickens under the influence of gadolinium orthovanadate, lanthanum orthovanadate, and a mixture of all these was investigated. It was established that their administration to broiler chickens for 10 days at a dose of 0.2 mg/l of drinking water (an average of 0.09 mg/kg body weight) increases the bioavailability of vitamins B2 , A, and E and the trace elements selenium, copper and zinc, which was manifested by an increase in their concentrations in the blood serum compared to the control group (from 8.6% to 3.0 times for vitamins, and from 17.8% to 2.5 times for trace elements, P<0.05) and liver deposition (from 9.4% to 4.6 times for vitamins and from 6.3 to 56.3% for trace elements, P<0.05), with a prolonged effect after administration was stopped. The introduction of nanoparticles (both in mono-solutions and in a mixture), along with a vitamin preparation, indicates the possibility of increasing the content of vitamins and trace elements without their additional introduction, using the dietary resource more fully.