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The shooting of protected species, especially rare animals, is regarded as a priority issue by law enforcement authorities. In such cases, an expert veterinarian is required not only to confirm the death of the animal as a result of shooting, but also to provide a precise description of the shot. In cases of shootings with pellet bullets, such a description is particularly difficult. The evaluation of the gunshot wounds of an osprey (Pandion haliaetus) delivered to the Veterinary Medical Centre at the University of Poznań called for the use of a variety of diagnostic techniques. A preliminary assessment confirming the shot was based on an X-ray photo. Computed tomography (CT) was used for in-depth diagnostics, providing a spatial representation of bullet stopping points and fragments. The shot caused a lower leg bone fracture. This damage upset the anatomical structure of the animal’s limb, which made it impossible to establish the wound channel by CT. Therefore, full shot characteristics could only be made only after a classical post-mortem examination. This examination facilitated the use of modern imaging diagnostic techniques. The use of mixed diagnostic techniques enabled us to determine the number of shots, the type of ammunition used and the direction from which the shot was fired. On the one hand, this case illustrates the possibilities offered by modern imaging diagnostic techniques and, on the other hand, it shows that the classic post-mortem examination remains a primary diagnostic tool for veterinary forensic experts. This is especially important when preparing forensic veterinary opinions in high-priority law enforcement cases.
Annually, hunters shoot millions of birds with lead ammunition. Many studies indicate diverse and often very high lead levels in the edible parts of game. Considering the number of hunters, the determined levels may pose a public health risk. Shotgun pellets are the main source of lead contamination of game animal tissues. Despite numerous studies indicating lead contamination in game birds, no significant reasons for diverse contamination of tissues with this toxic metal have been reported. The personal analysis presented in this paper suggests that the explanation for diverse levels of contamination of game animal tissues should be sought in physical phenomena generated by a projectile in damaged animal tissues. The projectile penetrating a target generates a multi-phase medium from destroyed tissues and simultaneously changes the shape of its front part. This movement of projectile is an example of a turbulent flow. The interpretation of the interaction between a projectile and damaged tissues indicate that the variable and unpredictable parameters of a projectile for each shot and the medium created by a projectile make it, impossible to determine, the degree of this interaction. The phenomenon of a temporary cavity created by a shot seems to determine the magnitude of lead transfer into tissues surrounding the path of a wound. Fluid mechanics also explains the relatively high lead levels in game birds in comparison with the levels determined in big game animals. In view of the unpredictability of projectile-animal body interactions, it should be assumed that game bird shot with lead pellets contains the lead levels dangerous to human health. Therefore, the use of lead pellets for bird shooting should be banned.
Considering the amendments to the regulations on animal protection in the European Union (EU), the authors outline the legal perspective on the role of veterinary surgeons in the protection of animals used in experiments. They point out that the use of animals in scientific experiments and for educational purposes has been a source of controversy, and that there have been various forms of protest against experiments that inflict pain and suffering (not only physical) on animals. Currently, the need to protect animals from pain and suffering, also in the course of scientific experiments, is a commonly accepted ethical standard. In outlining the history of the topic, the authors note that in the 20th century (from 1928 till 1997), the Polish law on animal experiments was based on two articles of a statutory instrument. This general legislation was extended in the Act on Animal Protection of 1997. After the accession of Poland to the European Union, the protection of animals used in experiments was regulated by a separate act (The Act on Experiments on Animals of 2005). This resulted from the requirements set by the Council Directive of November 24, 1986, on the approximation of laws, regulations and administrative provisions of the member states regarding the protection of animals used for experimental and other scientific purposes (86/609/EWG). Despite the substantial expansion of regulations adopted at the turn of the 21st century, the actual protection of animals used for scientific purposes raised objections in many European countries. As a result, in 2010 a new directive was issued to reinforce the legal protection of animals used for experimental and educational purposes. However, the EU legislation still leaves a great deal of freedom to the member states in constructing their own regulations. In particular, it does not specify the role of veterinary surgeons as a professional group with specialist knowledge and legal authorization in the process of approving and supervising experiments on animals. The Directive obliged the EU member states to implement the new legislation by the end of 2012. In Poland, the legislative process was initiated in January 2014. The bill prepared by the Ministry of Science and Higher Education includes regulations that contradict the intent of the Directive. The bill fails to recognize the role of veterinary surgeons, ignoring their knowledge and skills to identify pathological conditions in animals and to administer medical treatment. It is the sole professional group legally authorized to diagnose and treat animals and to perform medical procedures on animals. In addition, there is a variety of veterinary specializations, including those in the use and pathology of laboratory animals. Unfortunately, the proposed new regulations take no account of all this knowledge, experience and legal authority. It is undeniable that veterinary surgeons possess the knowledge, legal authority and a special attitude towards animals which enable them to objectively and professionally assess all stages of experiments on animals. The current proposals are insufficient to make veterinarians obligatory members of ethical commissions on animal experiments. Another inconsistency in the bill is that it does not provide for the involvement of veterinary surgeons in anesthetic procedures or at least for their supervision over such procedures (which is crucial for the protection of animals from suffering). These facts are difficult for the veterinary profession to accept. Considering the premises that form the basis for the Directive of 2010, it would be reasonable to expect that the new Polish legislation will ensure an extensive protection of animals used for experimental purposes. This requirement will not be met unless veterinary surgeons are involved in evaluating proposed experiments on animals and in direct supervision over such experiments.
Badania przeprowadzono na 48 kaczkach krzyżówkach (Anas platyrhynchos) w wieki 4-5 miesięcy w latach 1993-1995. Ptaki pochodziły z dwóch różnych środowisk: z uprzemysłowionego obszaru (teren miejski w pobliżu Bydgoszczy) i intensywnie uprawianego obszaru rolniczego (okolica w pobliżu Żnina, gdzie prowadzono uprawę pól). W czasie trzyletniego okresu badań obserwowano u kaczek krzyżówek pochodźących z terenu przyległego do Bydgoszczy spadek zawartości kadmu z 0,04 mg/kg do 0,03 mg/kg mokrej masy wątroby. Podczas gdy u ptaków gniazdujących na obszarze rolniczym występował podwójny wzrost poziomu analizowanego ksenobiotyku (od 0,03 mg/kg do 0,06 mg/kg mokrej masy). Czterdzieści procent kaczek krzyżówek z tego regionu wykazywało ponad 0,05 mg/kg zawartości kadmu, więcej niż dopuszcza norma odnośnie produktów konsumpcyjnych. Wzrost poziomu kadmu u 4-5-miesięcznych kaczek krzyżówek bytujących w okolicy Żnina w latach 1993-1995 pokazał, że na badanym obszarze w stosunku do gniazdujących ptaków istnieje zagrożenie potencjalne wymienionym ksenobiotykiem. Świadczy to o konieczności monitorowania okolic Żnina w kierunku obecności kadmu.
This paper presents results of research determining cadmium levels in livers of 48 coots (Fulica atra) aged 5-6 months, originating from industrial (Bydgoszcz) and agricultural (Znin) areas. Studies were carried out in 1993-1995. The results of the investigation show a decrease in the amounts of the analysed cadmium in birds from Bydgoszcz region (from 0.04 mg/kg to 0.03 mg/kg wet mass), while there was an increase of this metal in coots nesting in the area close to Znin (from 0.03 mg/kg to 0.04 mg/kg). Increasing cadmium levels in Znin region indicate a potential threat to the birds inhabiting this area. This statement was confirmed by the fact that coots stayed in the Znin neighbourhood for 5-6 months only. The highest cadmium level in the liver was 0.05 mg/kg.
There is a systematic increase in the number of traffic accidents involving both domestic and free-living animals. It was found that the largest number of animals dies in May and at the turn of October and November. It is estimated that only every fourth driver reports collision in Poland. In some cases, wounded animals are slaughtered and their meat is used for consumption. In connection with road accidents involving animals, it is crucial for the law-enforcement authorities to determine the actual state of affairs in order to assess the proper course of the collision. The paper presents comprehensive legal and veterinary aspects of the discussed issues. The own analysis was made according to the number of the road incidents in Poland with the participation of animals
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