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EN
Selenium concentrations in the liver, kidneys, and muscles of silver foxes living at a farm in West Pomerania, (northwestern Poland) were determined. The studies were performed on 243 tissue samples collected from 81 foxes. Selenium concentration was determined using the modified Watkinson's spectrofluorometric method. The highest Se concentration was found in the kidneys, with a mean level of 0.587 µg/g of wet weight. In the liver, the mean level was 0.247 µg/g w.w. and in muscles 0.070 µg/g w.w.
EN
The objective of the study was to determine selenium content in selected organs (liver, kidney) of wild boars from different regions of Poland. Materials for the study were obtained from 28 sites located in 16 provinces of Poland. Selenium concentrations in organs were determined using spectrofluorometric methods after wet mineralization in HNO3 and HClO4 mixture. Mean selenium concentrations in the investigated wild boars from Poland were 0.230 μg/g wet weight in the liver and 1.327 μg/g w.w. in the kidneys. Hepatic and nephric Se concentrations ranged from 0.036-0.626 μg/g w.w. and 0.322-4.286 μg/g w.w., respectively. Selenium concentrations in the wild boars differed considerably according to geographical location. Concentrations of selenium were highest in wild boars from south-eastern provinces and lowest in animals from northern provinces. Most of Poland’s area is environmentally deficient in this trace element, as evidenced by marginal selenium levels in the organs of the wild boars.
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