Vaccination of meat-producing chickens against eimeriosis using a diluent in the form of a gel

UDC 619: 616.993.192.1
DOI: 10.36871/vet.zoo.bio.202310009

Authors

Irina I. Tsepilova,
Svetlana A. Shemyakova,
Ilya D. Shemyakov,
Moscow State Academy of Veterinary Medicine and Biotechnology – MVA by K. I. Skryabin”, Moscow, Russia

Abstract

In the study of the parental livestock of agricultural poultry of the meat direction of the productivity of the cross «Smena 9», the species composition of pathogens of chicken eimeriosis is represented by three types of eimeria: Eimtria maxima (EI=72,1 %), Eimtria tenella (EI=51,2 %) and Eimtria brunetti (EI=34,3 %). Mixed invasions by two and three toxons of the genus Eimeria were identified: E. maxima + E. tenella (EI=74 %), E. maxima + E. brunetti (EI=8 %) and E. maxima + E. tenella + E. brunetti (EI=18 %). Infection (carriage of pathogens) with eimeriosis of the parent stock was 37,9 %, with AI 89 oocysts per 1 g of litter. The high efficiency of vaccination with a diluent in the form of a gel has been proven, since the causative agents of eimeriosis were not diagnosed in the experimental group on days 7, 14 and 21. The prevention of respiratory diseases was also noted and the safety of young chickens was 100 %, due to the absence of waterlogging of the feather, which was not observed in chickens in the first experimental group.

Keywords

chickens, eimeriosis, oocysts, species, vaccination, diluent