The article is devoted to the study of the translocation of heavy metals-trace elements (Zn, Cu) in the cereal-legume vegetation of natural fodder lands during their surface improvement (milling with the introduction of sugar-juice defecation sludge, NPK fertilizers) and root improvement (plowing the soil with the introduction of sugar-juice defecation sludge and NPK fertilizers). Based on the analysis of literary sources, it was established that as a result of man-made activities, the condition of fodder lands is deteriorating due to the ingress of toxicants, in particular, heavy metals. The research was conducted in the conditions of natural fodder grounds of the Right Bank Forest Steppe of Ukraine during 2017-2019. The determination of heavy metals in soils and plant material was carried out in the laboratory by the atomic absorption method. The hazard ratio of heavy metals in soils and biodiversity and the accumulation ratio of heavy metals were determined. It was established that in cereal and leguminous vegetation during the three years of vegetation of natural fodder lands in the zone of their local pollution due to surface improvement, the concentration of Zn increased from 1.01 times to 1.07 times, Cu -from 1.01 times to 1.02 times, while with root improvement, the concentration decreased for Zn content from 1.1 times to 1.25 times, and for Cu content -from 1.02 times to 1.55 times. At the same time, a tendency towards a decrease in the hazard coefficients and the accumulation of Zn and Cu in cereal-legume vegetation was noted with the root improvement of natural fodder soils compared to surface ones.

The article presents the results of research of honey as a dessert in hotel and restaurant complexes of Bila Tserkva region. The analysis of researched samples of honey with the use of laboratory researches which were carried out in the conditions of scientific laboratory of chair of safety and quality of foodstuff, raw materials and technological processes of Bila Tserkva national agrarian university is carried out. The research was conducted in accordance with the national standard of Ukraine DSTU 4497. according to generally accepted methods. Color, taste, aroma, consistency, crystallization, signs of fermentation were determined organoleptically using the sensory method of analysis of honey. It was found that in all samples the color of honey was from light yellow to yellow, with a pleasant taste and aroma, without signs of fermentation and the content of mechanical and other impurities. The diastasis number of honey samples used by hotel and restaurant complexes is 14, 10 and 8 units, respectively. Goethe, which indicates the heating of part of the honey. Thus, the results of research have shown that honey, which is used in hotel and restaurant complexes of Bila Tserkva region as a dessert in terms of organoleptic indicators, meets the requirements of the national state standard.

The study of effectiveness of the use of protein feeding bees was carried out in the conditions of the apiary ALLC “Volodymyr” in village Shershni Tyvriv district of Vinnytsia oblast. According to the principle of analogous groups were selected bee colonies for the formation of experimental groups. Protein feed was moistened with 50% sugar syrup and filled in the honeycomb. According to the experimental scheme during the preparatory period the bee colonies of the experimental groups II, III and IV were fed a feed mixture in an amount of 25 g per day. According to the experimental scheme during the main period bee colonies were fed a feed mixture of 70 g per day. Accounting of bees brood on the set dates was carried out at the expense of a grid frame every 12 days. Commercial honey was determined by weighing after pumping from each bee colonies separately. Forage honey was determined by weighing the honeycomb and then subtracting the conditional mass of the honeycomb. During the experimental Ukrainian breed bee colonies were involved which they were kept in long hive. Care and maintenance for bee colonies were the same. It was studied the effectiveness of using combined protein feeds in bee feeding. It is proved that in the spring during the harvesting honey use protein feeds (defatted soya flour with soy peptides and pollen) for feeding bees has a positive effect on the brood rearing by bee colonies and the production of honey and wax in the following sequence: defatted soya flour and pollen (50 % + 50 %) defatted soya flour and soy peptides (50 % + 50 %) defatted soya flour (100 %).

Providing bees with benign and sufficient protein feeds is the key to successful beekeeping. Protein feed significantly affects on certain functions of individuals and the vital activity and productivity of the bee colonies. So, as a result of increased consumption of protein feed during the first days of life the supply of proteins in the body significantly increases in young bees, hypopharyngeal glands and other organs become developed, which provides the ability to perform various tasks depending on age and living conditions. Older bees consume protein for tissue renewal with new cells and metabolic processes. Bees raised on low protein feeds become physiologically defective and do not live long. In conditions of protein starvation, brood rearing stops and bees throw larvae out of their cells. The article presents the results of studying the effect of using soy flour and its processed products in bee feeding on the essential amino acids content in their body. It was found that the use of soy peptone in bee feeding contributes to a greater accumulation of essential amino acids in the bees body in different periods of their development, in compared to soy milk, defatted soy flour and roasted soy flour which indicates a higher efficiency of its use as partial substitutes for protein feeds.

The intensity of damaging the nectar and pollen trees of forest lands, parks and woods in the conditions of Vinnytsia region has been studied. It has been found that in the zones of the highest local overspreading of Viscum album L. on the nectar and pollen trees, the following sequence of their damage is observed, in particular, in the conditions of forest lands: Tilia cordata L.-Tilia platyphyllos L. -Acer platanoides L.- Acer tataricum L.; in the parks: Acer platanoides L.- Acer tataricum L.- Tilia cordata L.- Acer campestre L.- Tilia platyphyllos L. - Robinia pseudoacacia L.; in the woods: Robinia pseudoacacia L. - Tilia platyphyllos L. - Acer tataricum L. It depended both on the composition of the nectar and pollen trees and their number in the area of distribution of the parasite. It was found that the level of damage to the nectar-dust-bearing trees of forest lands, parks and forest strips was respectively within 11.7% - 34.6%, 28.5% - 85.5% and 38.4% - 84.8%. Characterizing the intensity of distribution of white mistletoe within the forest lands, it should be noted that damage to the Tilia cordata L. – 34,6%, Tilia platyphyllos L. – 23,5%, Acer platanoides L. and Acer tataricum L.– 25,0% and 11,7% . In the conditions of park plantations, damage to Viscum album L.: Tilia cordta– 51,6%, Tilia platyphyllos L. – 52,9%, Viscum album L. – 28,5%, Acer platanoides L. – 85,5%, Acer campestre L. – 71,4% and Acer tataricum L.– 63,6%. Analysis of the intensity of Viscum album L. distribution on the nectar-pollen-bearing trees of the forest area under the highways showed that this parasite was damaged: Tilia platyphyllos L. – 38,4%, Viscum album L. – 84%, Acer campestre L. – 42,8%. The intensity of damage to nectar-pollen was found to depend on the dominant tree species in the area of local Viscum album L. In the woodland, a greater proportion of the nectar-bearing trees were Tilia, in the park zones – Acer platanoides L. and in the forest strips -– Viscum album L., at the same time, and a larger percentage were observed of damaged trees in these species. The distribution of Viscum album L. depended not only on the breed of nectar-pollen-bearing trees, but also on the number of trees of a particular variety in the area of their local damage by this parasite.