Epizootic situation on parasitosis and comprehensive control of exogenous and endogenous stages of Eimeria spp. on industrial turkey farms
The conducted studies have shown that Eimeria infections are widespread in young turkeys on industrial farms in Russia. The species composition of Eimeria oocysts detected in litter samples of the turkeys kept in the Penza Region showed the following Eimeria species: 80% of Eimeria meleagrimitis, 15% of E. meleagridis and 5% of E. adenoides. The highest Eimeria invasion prevalence in males was determined at the age of 35 days, the IP 45%, and in females at the age of 49 days, the IP 30%. The highest intensity of Eimeria invasion was observed at the same age. Subsequently, we observed a gradual decrease in the prevalence and intensity of Eimeria invasion up to 105 days of age. The clinical manifestations of Eimeria invasion were not observed in the turkeys. The comprehensive measures against exogenous stages (new polycomposite drug Virukill 260) and endogenous stages (eimeriocide, Toltrazuril and probiotic Vetelact) of Eimeria showed high antiparasitic efficacy, and had a positive effect on the biological protection of poultry buildings where young turkeys were grown, and on the economic performance of production. Our results showed the need for a comprehensive control of exogenous and endogenous development stages of Eimeria oocysts on industrial turkey farms.