Tymoshenko R. Sanitary and hygienic and qualitative assessment of chicken carcasses using different forms of trace elements

Sanitary-hygienic and qualitative assessment of chicken carcasses under the condition of application of various forms of microelements was substantiated in the PhD thesis on the basis of researches. The following conclusions are substantiated according to the results of the study: When analyzing the market of premixes with chelated compounds for 2018-2020, it was found that most of the market (97%) is occupied by foreign companies from Denmark (21%), Poland (4%), Germany (2%) and Belgium (1%) , including the largest percentage (69%) are manufacturing companies from China. The share of domestic manufacturers in the market of chelated complexes for animals and poultry is 3%. The development of production of premixes with chelate compounds for use in industrial poultry in Ukraine is quite relevant and promising, it creates an additional incentive for the creation of domestic chelate complexes and opens a promising market for the production and sale of these products. When determining acute and chronic toxicity, according to state standard of Ukraine 12.1.007-76 and according to the classification of chemicals by the degree of hazard of chemicals SDA 85.2-37-736: 2011, by toxicity class, chelating elements of Zinc, Copper and Manganese when administered into the stomach at a dose of 800 mg / kg - rats and 1000 mg / kg - chickens refer to the IV class of toxicity - low-toxicsubstances. The cumulative coefficient of chelates was 8.3, ie it belongs to the weakly cumulative. Prolonged introduction into the body of mice of the remains of chelates with food and its subsequent application to the skin revealed allergic reactions of the immediate type, which disappear after three hours. In the absence of prior sensitization of the body to chelates in mice, no allergic reactions occurred. It was proved that the general and biochemical parameters of blood in the experimental bird during the whole period of observations were within the values of the physiological norm and probably did not differ from the indicators of the control group.