Hungarian Veterinary Archive
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Prevalence of feline hyperthyroidism in Hungary and factors associated with the incidence of the disease
Get PDFIt has become evident in small animal veterinary practices that there is an increasing incidence of feline hyperthyroidism (FHT). There has been a significant increase in the prevalence of the disease since the 1970s. It is unclear, however, whether this is specifically due to an increase in the number of cases or because there is a greater awareness of the disease amongst veterinarians. Hyperthyroidism is due to an increased production of thyroid hormones, T3 (Triiodothyronine) and T4 (Thyroxine), from one or both lobes of the thyroid gland which may be enlarged due to hyperplasia, a benign tumour, or rarely, a malignant tumour. There have been many studies over the past 40 years focusing on the potential causes of the rising incidence of FHT across the world
In vitro evaluation of deoxynivalenol-induced intestinal barrier damage
No full textDeoxynivalenol (DON) produced by Fusarium fungi can induce pathological lesions such as intestinal barrier damage. It affects the integrity of the intestinal epithelium through alterations in cell morphology and differentiation. Quercetin (Que) is a polyphenolic compound that shows good anti-inflammatory and antioxidative effects. The aim of this study was to determine how the non-tumorigenic porcine intestinal epithelial (IPEC-J2) cells react to administration of DON, and whether Que has protective properties against DON-induced damage. Hence, we examined the effects of DON and Que on cell viability, membrane integrity and oxidative state
How is the animal’s welfare maintained when used in prisons? Norway as a case study
No full textThis thesis is a study into how animal welfare is maintained when animals are used in AAI programs in prisons in Norway. All the prisons in Norway were approached, and four prisons were identified as using AAI. The four prisons were contacted to gain detailed information about how they maintained animal welfare in their programs. Bastøy prison is presented in most detailed in this paper, as they had an extensive program
A juh embrióátültetési eljárás felhasználása egy új fajta, a Fehér Suffolk hazai honosítása érdekében
Get PDFComparative pathomorphology of highly pathogenic avian influenza (H5N8) infection in Hungary during the 2016-17 outbreak
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Background: Highly pathogen avian influenza occurs from time to time in Hungary. The latest H5N8 outbreak during 2016-17 was especially devastating for the poultry industry. Objectives: The aim of this study is to summarize the comparative results of the pathomorphological examinations of infected birds during this outbreak, and also to provide up to date information for field veterinarians and poultry industry vets. Materials and Methods: Extensive pathological, histopathological and immunohistochemical examinations were carried out on H5N8 highly pathogenic avian influenza cases from each economically important poultry species that were submitted to our laboratory during the 2016-2017 outbreaks in Hungary. A range of organs was tested by PCR for HPAIV presence and sera of infected birds were tested by haemagglutination inhibition. Results and discussion: The involved H5N8 HPAI strain caused a disease with pronounced pathological lesions in waterfowl (goose, duck) and poor patho-logical lesions in gallinaceous birds (hen, turkey). The brain lesions related to viral infection were found in every species by histopathological examination and the specific virus protein was detected by immunohistochemistry. Microscopic lesions in the liver and pancreas were of major significance in the post mortem diagnostics of the disease in waterfowl. Viral nucleic acid was detected in every organ examined, but serological examinations yielded negative results in every case as expected. In summary, although the ultimate diagnosis of avian influenza should be based on direct detection of the virus, pathomorphological knowledge of the disease is essential in both field and laboratory diagnostics
Studies on intermediate hosts and larvae of lungworms of lagomorphs in Hungary
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Larvae of protostrongylid nematodes develop in the muscles of terrestrial snails and the adults live in the lung of mammals. The behaviour of protostrogylid and angiostrongylid larvae is interesting because they can infect such animals (and even humans) that does not consume living snails intentionally. In these cases the route of infection itself is not always clear. There had been many contradic-tory views for decades on whether these larvae infect mammals while they are in the tissues of snail or after getting out from the snail. The parasitosis caused by such worm species is a slowly developing, difficult or untreatable process, and it is therefore advisable to prevent the infection itself. The authors aim is to find out whether snails are consumed randomly by the strictly obligate herbivores, and how lungworm larvae get into such definitive host species.The authors investigated the connections between the Protostrongylus lung-worms of rabbits and hares and one of their common intermediate hosts, the Xerolentaobvia snail. They have found that the worm larvae cannot climb out of their own power from the snails’ body, but the snails themselves are not pre-ferred to eat by the lagomorphs, at least these snails do not belong to their usual diet. In the field there were not found lungworm larvae in snails smaller than the size of the Xerolenta snails, which ones can be accidentally consumed by the rabbits while snails crawl on plants. On the surface of the haulm of grasses the authors found larvae released from snails in only one case. The larvae released from the snails’ body artificially are only viable for hours at most. The authors assume that peculiar environmental conditions and the active involvement of the living snail are necessary for the release of the larvae and getting in the final host. The conditions which facilitate the way of infections are so far unknown but it was supposed that the night is the preferable time of the day for the transmission of larvae from the snails to the final hosts because the snails move more at night than during the day and the rabbits also like to graze at night
