A féregellenes kezelések jelentősége és lehetőségei az intenzív baromfitartásban Irodalmi összefoglaló
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Summary The authors of this paper detail the anthelminthics used for the treatment of worm infestations in the poultry practice. In poultry farming, primarily nema todes, and occasionally tapeworms mean a serious burden for animal health and finances by reducing growth and production parameters of livestock. Due to the worms’ deteriorating effects, average weight gain and egg production decreases, while the average feed efficiency increases. The most frequently detected gas trointestinal nematodes of poultry are the Ascaridia, Capillaria and Heterakis spe cies, while extraintestinally, Syngamus trachea is frequently found. According to some literature data, the incidence of worm infestations in the large scale poul try industry can reach up to 100%, requiring regular and consequent interven tion, which shows the great importance of anthelmintic agents. Considering the worms’ taxonomic classification, reproduction cycle and predilection sites, differ ent groups of anthelminthics can be used successfully. Benzimidazoles, including fenbendazole and flubendazole, as well as levamisole, from the group of imidazo tiazoles, are often applied for deworming poultry. Macrolides, such as ivermectin, might as well be used, but currently they are not available for poultry in Hun gary. The authors discuss the mechanism of action, spectrum of activity, phar macokinetic parameters, side effects and clinical studies of efficacy, concerning the different groups of active substances. The aim of this study is to review the applicable agents against the most important worm infections of poultry, includ ing their effective dose, to facilitate successful deworming therapies in intensive livestocks, and therefore to improve the economic indicators.