[Diseases of the fallow deer in northeastern Bulgaria and their prevention]

Stated are the values of the basic microelements in fallow deer in the region of Northeast Bulgaria as established through biogeochemical analysis. In unfavourable years metabolism is disturbed resulting in lowering the defense mechanism of the body. A number of bacterial species, and, more specifically, Escherichia coli increase their virulence and cause gastrointestinal disorders and diseases. Copper, selenium, and arsenic deficiency lead to endemic ataxia with characteristic clinical symptoms--the so-called spring diarrhea and endemic paresis. The Microsal Nesse polymicroelement preparation has been tested to prevent diseases as applied to the drinking water and to the forest and fruit silage. It contributes to strengthening the resistance of fallow deer, lowering the chronic diseases of the lungs, stomach, and intestines as well as to improving the shooting trophies.