The authors give an overview about the development of laboratory diagnostic methods (used at the National Veterinary Institute and Veterinary Institutes of Debrecen, Kaposvár, Békéscsaba, Miskolc and Szombathely) of poultry diseases from the 60's (founding of Poultry Health Section) until today. These were pathological, histopathological, bacteriological, parasitical, chemical, serological and virological methods, supplemented by local, epidemiological and clinical examinations and laboratory animal challenge. Today modern and very efficient (e.g. molecular biological: PCR-method, immunohistochemical - IH etc.) methods are included. The most important role of diagnostic activity of the institutes was (and still is), to carry out laboratory examinations necessary to support efficient state veterinary measures, and to assist professional work of practising veterinarians by examinations requiring special equipments and professional knowledge. During the 50's and 60's, by the development of large scale poultry breeding and growing to industrial size, beside the classical infectious diseases, many new diseases and production problems emerged, known only from the literature or not known yet at all. At the beginning, fowl typhoid serological - mainly by slide-agglutination method screening test, and diagnostic examination assisting the eradication of Newcastle-disease meant the most important tasks. Later helping the control of poultry-coccidiosis, examination of high losses due to aflatoxin-contamination of imported ground nut meal, and further development of the control of fowl cholera were the most important topics. Clearing the ethiology of the so-called goose influenza (later Derzsy's disease) endangering even the existence of large scale goose breeding meant the international success of Hungarian poultry health specialists. The results of research in Hungary on many infectious and non-infectious poultry diseases [Marek's disease with tumour-formation in the majority of case, and the early form with transient paralysis, avian influenza infection of ducks, turkeys and guinea fowls, EDS, infectious bursitis, detection of viral enteritis of ducks, studies on mycotoxins, "malabsorption syndrome" or "stunting disease" syndrome of broiler chickens, infectious nephritis of chickens, "poult enteritis-mortality" (PEMS) syndrome of goslings, intestinal spirochaetosis of domestic fowls, geese and ducks, newly occurred viral diseases in geese, e.g. enteral form of Derzsy's disease, diseases caused by reovirus, Polyomavirus and circovirus, EDS-virus caused tracheobronchitis, adenovirus caused hepatitis-hydropericardium, West Nile fever etc.] contributed to improving safety of poultry breeding. The extremely rapid eradication (during cc. one and a half months) of avian influenza outbreak in 2006 in Hungary, caused by H5N1 subtype virus strain means the common success of diagnostic work and state veterinary activity.
|Translated title of the contribution||Development of poultry disease diagnostics in the veterinary institutes|
|Number of pages||7|
|Journal||Magyar Allatorvosok Lapja|
|Publication status||Published - Dec 1 2009|
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