Modern comprehensive ideas about characteristics of the physiological state of stallions and improving the technology of their preparation for mating

The paper presents the results of studies of the physiological state of stallions and their reproductive function in respect of the season, and according to blood samples the mechanisms of their physiological processes are adjusted using the ultrafine metal-polymer composition “iron-copper-zinc”. According to such biochemical blood parameters of stallions as total protein and its fractions: lactate dehydrogenase (LDH), alkaline phosphatase (ALP) and α-amylase, significant differences in the seasonal aspect were revealed. A number of features of blood morphology in connection with the season were noted. These were an increase in the concentration of erythrocytes, leucocytes, hemoglobin, eosinophils and lymphocytes in spring. An increase in the concentration of testosterone, the main populations of lymphocytes and subpopulations of T cells in the blood of stallions in the spring-summer period was established. The positive effect of the composition of nanosized metals on metabolic and enzymatic processes was revealed

Complex evaluation of the modern atmospheric air of city ecosystems

The results of studies of the chemical composition of atmospheric air showed that the concentration of ammonia (0.2520 mg/m3), nitrogen dioxide (0.3942 mg/m3) and hydrogen sulfide (0.0269 mg/m3) exceeded the MPC requirements. The seasonal dynamics of the spread of aerogenic pollutants revealed a decrease in NO, NO2, H2S, SO2 from winter to the spring-summer season. However, the content of such pollutants as NH3, CO and dust increased significantly in summer to 0.0816, 3.7140 and 0.0289 mg/m3 respectively. During bio-indication of 363 trees only 4 species of the 16 studied ones were characterized as healthy (K<1.5). The overall level of attenuation was 2.16 (“weakened forest”). Evaluation of the fluctuating asymmetry showed high resistance of the maple (Acer Platanoides) to environmental pollution (the level of asymmetry in the transport zone was 0.039 against 0.077–0.078 in the silver birch (Betula pendula) and the fragrant poplar (Populus suaveolens). The high level of anthropogenic pollution in the transport zones of the city adversely affected roadside biotopes. It has been proven that roadside phytocenosis is significantly sparse and the population density drops sharply by 50–100 %, compared to cleaner functional areas. The results of lichenoid indication showed that in most of the sites studied, the air was highly polluted (pollution class 1) and the concentration of SO2 was 0.10–0.30 mg/m3

Analysis of consequences of the relationship between man, nature and technology in the context of technogenesis intellectualization

The paper presents the results of the analysis of demographic and medico-social data characterizing the dynamics of morbidity and mortality from environmental diseases, in particular, diseases of the cardiovascular system. The trend of negative natural population growth was revealed, amounting to -6.9 per 1,000 persons by 2019. The number of patients with cardiovascular diseases was 13 817,4 persons, with the overwhelming majority of the working-age population (9020,2 persons). Ischemic heart disease had the largest share in the structure of the studied diseases (62,25 %). There was also a decrease in life expectancy over the past 30 years and an increase in mortality of young and middle-aged people

Analysis of the usefulness of the mineral composition of diets and the effectiveness of the use of mineral and vitamin supplements in the diets of cows of different technological groups

The paper presents the results of the analysis of the usefulness of the mineral composition of diets and the effectiveness of the use of mineral and vitamin supplements in feeding cows of different technological groups. The analysis showed that the amount of calcium and phosphorus in the diets was close to the norm. Extremely high concentrations of elements such as magnesium, potassium and sodium were noted with an obvious lack of chlorine and sulfur. The cation-anion balance was positive: the range of indicators ranged from 14.98 to 23.49 and a tendency to increase this indicator by the end of lactation was revealed. The ratio of calcium and phosphorus, as well as potassium and sodium did not exceed the established norms. For most of the trace elements, the excess of the recommended norms was determined, which can be justified due to the low digestibility of trace elements in the body of cows