DOI: 10.26155/vet.zoo.bio.202010004
UDC 619.1: 616.993.19: 615.28.03

Authors

V. V. Dronov
Candidate of Veterinary Sciences, Associate Professor at the Department of Noncontagious Pathology, Belgorod State Agricultural University named after V. Ya. Gorin, Belgorod, Russian Federation
G. V. Snoz
Doctor of Veterinary Sciences, Professor at the Department of Diagnostics of Diseases, Therapy, Obstetrics and Animal Reproduction, Moscow State Academy of Veterinary Medicine and Biotechnology – MVA by K. I. Skryabin, Moscow, Russian Federation
E. G. Yakovleva
Doctor of Veterinary Science, Professor of The Department Infectious and Invasive Pathology, Belgorod State Agricultural University named after V. Ya. Gorin, Belgorod, Russian Federation
I. N. Yakovleva
Candidate of Biological Sciences, Associate Professor Head of Department of Noncontagious Pathology, Belgorod State Agricultural University named after V. Ya. Gorin, Belgorod, Russian Federation

Abstract

The article provides a treatment estimates of the effectiveness of anticoccidial agent in the experimental infection of chickens with field isolate of coccidia recovered from the production sites of poultry complexes in two regions. The following Eimerian cultures were recovered and identified from the litter: E. Acervulina, E. Maxima, E. Tenella, with a quantitative predominance of E. Maxima. The isolated mixture of field strains of coccidia was partially sensitive to lasalocide, salinomycin, monensin and diclazuril (PKI from 120,0 to 160,0). High sensitivity was noted to decoquinate and maduramycin (PKI-164), robenidin (PKI-178), without death loss of chickens. The complex drug maduramycin + nicarbazine showed the highest sensitivity of the causative agents of coccidiosis (PKI-180). The most effective of the studied drugs, which maximally preserved the ability to body weight gain of chickens, was robenidin, which showed a difference in weight of 222 g, or 38,1% as related to the group of chickens infected with coccidiosis.

Keywords

eimeriosis (coccidiosis), E. Acervulina, E. Maxima, E. Tenella, coccidia isolate, broiler chicken, anticoccidial agent, body weight, anticoccidial index, rotation.