Оздоровлення бджіл за нозематозу без антибіотиків

Abstract

HONEY BEES TREATMENT OF NOSEMA DISEASE WITHOUT ANTIBIOTICS

H. V. Odnosum, N. M. Soroka, T. M. Efimenko

Abstract. Until recently, the most common and effective drugs against the Nosema disease were considered drugs with an antibiotic action, in particular fumagillin, tetracycline, metronidazole, etc. Considering the fact that antibiotics are prohibited to use in beekeeping in Europe - the main importers of Ukrainian honey, the task of our research was to prove experimentally the possibility of a complete denial from antibiotics for the bees’ recovery from Nosema. In laboratory experiments verified the effect against Nosema of the drugs, with the active substances of metronidazole and tetracycline, as an analogue it was used herbal preparation CAS. The trial was performed on the summer generation of even-aged bees infected with Nosema spores. They were fed twice antibiotics with sugar syrup with an interval of 7 days in the recommended doses. Then it was conducted mortality registration of the experimental insects. Dead insects were subjected to microscopic analysis to assess the degree of contamination. It was found that none of the studied drugs did not inhibit the development of microsporidia Nosema. However, the rate of dying off insects in variants with feeding CAS significantly slow down and experimental bees lived in this variant much longer (generally on 12-15 days), then in variants with feeding antibiotics. That is, the use of antibiotics for the bees` treatment with Nosema is inefficient and therefore there must be other approaches to health improvement. These approaches can be returned to the use of plants with antiparasitic, mycocide and bactericidal effect.