This study aimed to develop a methodology to evaluate the protection of animals and people from the harmful effects of the farm’s microclimate and environment, taking into consideration the energy, economic and environmental indicators. To achieve this goal, the following were determined for 2019 for the eight countries which are the world leaders in the field of pig farming: the volumes of carbon dioxide pollution, ammonia, dust and manure, and the analytical dependencies between the feed consumption, pig productivity and the concentration of ammonia inside the farm. The weight gain of pigs reduced by 15% with an increase in the concentration of ammonia in the internal air of livestock houses to 20 mg/m3 , but the feed wastage increased by 12%. Mathematical models were developed to estimate the relationships between the feed consumption, pig productivity and the concentration of harmful gas (ammonia) which is one of the main parameters of the microclimate. The results will be used in making technical and technological decisions in the field of microclimate, cleaning and disposal of farm manure. Keywords: pig, farming, ecology, environment

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The intensification of agricultural production and processing industries, the use of powerful tractors and harvesters, and the increase in the intensity of road cargo transportation lead to an increase in waste from economic activities and an increase in the anthropogenic load on the environment. Human-made accidents exacerbate the problems of the stability of natural ecosystems. Dangerous substances get into the soil and accumulate in it in the form of various toxicants. This situation poses a threat to all living organisms. One of the ways to solve the urgent problems of environmental safety and the production of high-quality agricultural products is the use of bioremediation technologies for soil purification. The paper aims to increase the efficiency of soil bioremediation technology by improving the technical means used for the aeration of soil piles. The current aerators-mixers perform soil agitation and grinding of large soil formations while saturating the treated material with oxygen. We propose improving the stirring drum design of a semi-suspended aerator-mixer, equipping it with new knife-shaped working blades and with a screw winding that allows increasing the contact area with the processed mass and forming a pile of a given shape. The contact surface increases due to biological products sprayed by the nozzles and the fine soil fraction formed after treatment. This fact also intensifies the microbiological processes of toxicant oxidation. Based on the theoretical research and multivariate regression analysis, we obtained a regression equation. It allowed us to establish the relationship between the main factors that affect the aeration process of soil piles to a greater extent. We carried out experimental studies in the scientific laboratories of the university. Thus, we determined the rational parameters of the improved aerator-mixer of piles.

Harvesting hay feed in rolls Packed in a polymer film allows not only to reduce the loss of nutrients, but also to get high-quality food, regardless of weather conditions. The effectiveness of this technology depends primarily on the timing of harvesting of the herbage, which type and brand of baler, modes of formation of the bales in the bale chamber, and the nature of the processes occurring in the rolls after packing them in foil. The paper presents research data on roll haylage, which was prepared in adverse weather conditions.