ABSTRACT
For the purpose of registration of subjective complaints and pathological changes of the respiratory tract 1,023 employees of socialist agriculture were additionally examined in connection with an expanded x-ray-screening from the points of view of otorhinolaryngology and industrial medicine. The employees in industrial livestock breeding, especially in industrial poultry breeding, turned out to be the group with the most frequent complaints and pathological findings in the respiratory tract. The findings suggest, that chronic, non-specific changes develop on the basis of the summation of several noxious factors in industrial live-stock breeding. In conclusion of the examination recommendations for the optimization of the working conditions for employees in industrial livestock breeding are given from the points of view of industrial hygiene and occupational medicine.