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The conception of creation and functioning in Poland the hunting divisions as a modern field unit, as a population management space especially of big game was discussed. The idea of hunting divisions existence is the year-long management of game population in its range. In 1997 started to oblige Long-term Hunting Management Plans, which assume perspective planning in period of 10 years. Actually within the country exist 147 Hunting Divisions. The experiences gained between 1997 and 2007 and actual stage show many week points in functioning of divisions. The main shortcoming is lack of reliable knowledge about the number and structure of game population. Moreover lack of authorization of the hunting division coordinators causes that in many regions management is based on the plans prepared for the hunting district level, what is serious mistake for red deer population.
The aim of this study was to analyse the concentrations of selected elements, such as copper (Cu), manganese (Mn), calcium (Ca), magnesium (Mg), iron (Fe) and zinc (Zn), in the hair of cattle from farms in areas with varying degrees of environmental contamination. The studies were performed on 116 Holstein-Friesian heifers, two years old and weighing around 550 kg. Animals originated from three breeding centers: Kombinat Rolny Sp. z o.o. - Kietrz (Opolskie Province), Hodowla Zarodowa Zwierząt Sp. z o.o. - Knyszyn (Podlaskie Province) and Ośrodek Hodowli Zarodowej Sp. z o.o. - Osięciny (Kujawsko-Pomorskie Province). Hair samples were collected in two periods: during summer (including the period from July 5 to September 6, 2005) and during winter-spring (including the period from January 4 to March 9, 2006), from the flank, just behind the costal arch. The freeze-dried samples were mineralized in an Ethos Plus microwave mineralizator, (Milestone).The tissue was weighed for mineralization, and then 6.25 cm³ of HNO₃ and H₂ O₂, mixed at a 4:1 ratio by volume, was added to 0.2 g of the tissue. Metal concentrations were determined with an atomic absorption spectrophotometer, Solar 969 (Unicam). The analysis indicated that the average content of microelements and macroelements in the hair collected from the three farms was different. Significant differences in the content of certain elements in the hair of dairy cows, kept under the same husbandry and feeding conditions may have been caused by various factors, as well as the characteristics of individual animals.
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