Current problems of poultry health [Hungary]
1990
Lantos, Cs. (Foldmuvelesugyi Miniszterium, Budapest (Hungary))
In parent pair flocks serious losses caused by Marek's disease and leucosis, against which a possibility of protection /besides vaccination/ is offered by hygiene and the introduction of the "one plant - one age group" system. The greatest losses are caused by E. coli, which has become a pathogen, either by itself or coupled with other diseases of the raising period and with mycoplasmosis. In 4 regions of Hungary the so-called swollen head disease which causes the greatest losses in 2-10-week old turkey populations was detected causing a rate of mortality up to 40 o/o. In general, myocardiac, hepatic and renal degeneration, enteritis, imperfect development, CRD and E. coli complications, as well as lesions of the respiratory tract caused by viruses are noted by the veterinary institutions. Since the introducion of a tariff for laboratory tests the number of examinations fell to a third compared to 170 000 in the previous year, and compared to the number of chocked eggs examined. Losses caused by Derzsy's disease in geese, fowl cholera, and modification of the prevention of Newcastle disease are also discussed.
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