The production of food, technically assisted in the area of biological changes, often creates uncertain situations regarding all consequences of that activity. The great number of modem breeding herds in the event of mismanagement of production may generate a danger to the environment. In the mechanization of animal production as well as the other spheres of activity there is a close relation between man machine, animal and environment. The largest ecological threat in animal production is excessive concentration of animals. The reason is the production of large amounts of excrements and emission of nitrogen and phosphorus compounds, sulphuretted hydrogen and cloacal gases into the natural environment. Those disadvantageous occurrences could be effectively prevented by using organizational - technological methods, which necessitate special technical measures.