Experimental eimeriosis in broiler chickens

УДК 619:616.99:616.3:636.22/.28.053.2/.636.5
DOI: 10.36871/vet.zoo.bio.202402014

Authors

Fedor I. Vasilevich,
Valentina M. Bachinskaya,
Moscow Veterinary Academy of Veterinary Medicine and Biotechnology – MVA named after K.I. Scriabin”, Moscow, Russian Federation
Natalya R. Sharapova,
JSC Apatit, Moscow, Russia

Abstract

The course of eimeriosis in broiler chickens was studied during experimental infection with a mixed culture (Eimeria acervulina, Eimeria tenella, Eimeria maxima) at a dose of XNUMX sporumerated oocysts. The disease did not manifest itself clinically, the chickens of the challenge and control groups ate the food well, the chickens of the experimental group were less active, and their feces were mixed with mucus. The chickens of the challenge group consumed XNUMX g more feed than the control group; the increase in live weight over XNUMX days in the challenge group was XNUMX g lower than the control one. During histological examination, changes were noted in the duodenum, middle intestine and blind processes of the large intestine, characteristic of eimeriosis.

Keywords

eimeriosis, broiler chickens, enterocolitis, petechiae, oocysts