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This paper presents the results of an experiment aimed to determine the activity of selected antioxidant enzymes: superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx), conducted on 24 Hy-Line Brown layers raised in a battery cage system. The hens were divided into two groups, non-infested and infested with Dermanyssus gallinae. It was found that the exposure to the infestation...
Średnia zawartość Cd, Pb i Hg stwierdzana w wątrobie kurcząt brojlerów pochodzących z wybranych rejonów województwa warmińsko-mazurskiego wynosiła odpowiednio: 0,016; 0,025; 0,0101 mg/kg tkanki. Odnotowane stężenia metali (Cd, Pb, Hg) w wątrobie badanych kurcząt byty dużo niższe od obowiązujących dopuszczalnych ustawowo limitów pierwiastków szkodliwych dla zdrowia w produktach pochodzenia zwierzęcego.
This paper presents the results of studies on the content of polychlorinated biphenyls (PCB's) in the fat of wild-boars shot in 10 selected areas of north-eastern Poland. All examined fat samples contained polychlorinated biphenyls. The mean level of PCB's in fat samples collected from wild-boars was 5.1 µg/kg. The highest mean levels of PCB's were noted in wild-boars from the Supraśl and Miłomłyn...
Liver and kidneys collected in 1998 from cattle bred in the region of Varmia and Mazuria were analysed for the levels of cadmium, as well as copper and zinc. The mean concentration of cadmium younger animals (<2 years) was 0.425 mg/kg in kidneys, and 0.159 mg/kg in liver, being much lower than the levels found in older (>2 years) cattle. Notwithstanding this, cadmium levels were not high enough...
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