CONTAMINATION OF THE LITTER OF BROILER CHICKENS WITH EIMERIA OOCYSTS DURING THE TECHNOLOGICAL CYCLE OF CULTIVATION

Abstract

For disinvasion of poultry houses on this site against the exogenous stages of eimeria, a new complex drug “Delegol Pro” was used to prepare poultry houses for occupancy. The drug toltrazuril was prescribed to 2.5% of the chickens aged 8–9 days against the endogenous developmental stages of eimeria. Studies conducted after 1, 2, 3, 4 weeks after planting chickens and before slaughter, showed contamination of the litter with eimeria oocysts. The average number of oocysts in 1 g of litter during different periods of research was 3.32; 14.4; 8.6; 7.9 and 3.7 thousands, respectively. Our data show that the release of oocysts begins to decrease gradually 2 weeks after the application of toltrazuril. The low level of oocysts in the litter at the end of the broiler breeding cycle (3.7 thousands) indicates that chickens are well immune to coccidiosis. Contamination of the litter of broiler chickens with invasive elements during outdoor maintenance of the poultry houses during the technological cycle of cultivation after disinfestation and when prescribing coccidiostatics was established from July to September 2017 in the conditions of the “White Bird” Poultry Factory by taking and examining the litter samples at different times of growing broilers. To disinfect all 34 poultry houses at this site against the exogenous stages of ameri, a new complex drug “Delegol Pro” was used in a dose of 0.5 l / m2 at an exposure time of 2 hours when preparing poultry houses for settlement.