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The aim of the study was to determine the prevalence of infection with gastrointestinal parasites in Polish Konik horses from Poland and those imported from the Netherlands. The prevalence and rate of infection was determined based on coproscopic examination using Willis-Schlaf and Mc-Master methods. Faecal samples were tested for the presence of Cryptosporidium sp. using a modified Ziehl-Neelsen staining method. Mean prevalence of infection with gastrointestinal parasites in Polish Koniks imported from the Netherlands and those from Poland was 100%. Imported horses were found to harbour nematodes of the family Strongylidae (89.47%) and Cyathostominae (94.74%) as well as Parascaris equorum (5.26%) roundworms. Domestic Polish Koniks were found to harbour Strongylidae (100%) and Cyathostominae (100%) nematodes as well as Cryptosporidium sp. protozoa (2.27%). Domestic horses were more infected with Cyathostominae (865 EPG) and Strongylidae (731 EPG) than horses imported from the Netherlands (739 and 600 EPG, respectively). The study demonstrated that Polish Koniks from Poland and those imported from the Netherlands should be monitored parasitologically because endoparasites may create a major epizootiological problem when these animals are kept in an organic production system.
The objective of our study was to determine residues of PCB indicator congeners in select organs of suburban foxes from the West Pomeranian area of Poland. Quantitative analysis was conducted by capillary gas chromatography using the mass spectrometry method. Mean concentrations of ΣPCBs (sum of PCBs: 28, 52, 101, 118, 138, 153, 180) in the liver and lung was 389.99 ng/g and 110.57 ng/g of lipid weight. The proportion of dominant congeners (#180, 153 and 138) in total PCB was 90.9% in the liver and 77.1% in lungs. The PCB concentrations obtained in the liver of foxes are lower than the literature data, especially with regard to highly chlorinated congeners.
The aim of this study was to determine serum selenium concentrations in Polish Konik horses residing in the Odra Delta Nature Park (Poland) and to evaluate the activity of glutathione peroxidase and Se content in testes of this horse breed. In over 95% of cases, serum Se concentration was below the optimal range, and none of the horses examined was deficient in this trace element. The lack of Se deficiency in the animals examined suggests however, that the Polish Konik horses have a natural ability to the optimal use of nutrients available in their life area. Testicular content of Se and GSHPx activity in the colts was higher than those found in stallions, and a positive relationship between these antioxidants was demonstrated. The differences in Se contents and GSHPx activities in testes between colts and stallions suggest that selenoenzymes play important roles during the puberty of male horses.
Celem pracy było określenie stężenia selenu w glebie oraz wybranych narządach saren (Capreolus capreolus) pochodzących z województwa wielkopolskiego. Materiał do badań stanowiły wątroby i nerki saren (Capreolus capreolus) (n = 23), odstrzelonych w 2009 roku (okres letni) na obszarze województwa wielkopolskiego oraz próby gleby, pobrane w tym samym okresie z 18 punktów badawczych z głębokości 0–20 cm, zlokalizowanych na obszarze bytowania saren. Zawartość selenu oznaczano metodą spetrofluorymetryczną z wykorzystaniem 2,3-diaminonaftalenu (DAN). Stężenie selenu w glebie wahało się od 0,00 do 0,57 μg · g–1 s.m, średnio 0,19 ± 0,11 μg · g–1 s.m. Średnia koncentracja selenu w wątrobie sarenwynosiła 0,06 μg · g–1m.m., natomiast w nerkach 0,33 μg · g–1 m.m. Zaobserwowano dodatnią statystycznie istotną korelację (r = 0,7583, P = 0,00003) między tymi narządami. Niska zawartość selenu zarówno w narządach saren, jak i w glebie wskazują, że obszar objęty badaniami jest niedoborowy w selen.
Traditional agricultural measures are still necessary for maintenance of endangered endogenous species of plants and animals in ecologically valuable habitats. Poland is one of the countries of the highest biodiversity of agricultural lands in Europe, however, the intensification of agriculture and farming resulted with regular decrease of valuable wildlife species. Abandonment of agricultural use of traditionally pastoral areas induced the encroachment of species that reduce local biodiversity. To counteract this undesirable process, several organisations re-introduce Konik polski horses into wastelands. The aim of this overview is to share the experiences of institutions which used Konik polski horses as a mean for biodiversity restoration in post-agricultural and forest areas, including expected effects, their implementation and main problems encountered. The aims, positive and negative effects are presented and discussed.
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