Systemic immunity of chickens with respiratory mycoplasmosis at poultry farms with various production

N. V. Kalashnik,N. V. Alekseeva,D. A. Korshenko,Y. O. Locieva,P. M. Gavrilin,E. G. Gavrilina

doi:10.15421/2020_18

Abstract

Experimental studies were conducted on the basis of the Research Center for Biosafety and Environmental Control of Resources of the Agroindustrial Complex of the Dnipro SAEU, poultry farms of different directions of productivity of Donetsk-Prydniprovsky region of Ukraine in the period from 2016 to 2019. The purpose of the work is to determine the nature of pathomorphological changes and the status of systemic immunity in chickens with respiratory mycoplasmosis at poultry farms with various production. To determine the immunodeficiency and immunopathological conditions of a productive poultry with respiratory mycoplasmosis, a comprehensive immunological study was performed. Significant fluctuations in the absolute and relative values of leukograms and immunograms have been established, indicating a significant immunological alteration in chickens with respiratory mycoplasmosis. The most significant changes in the status of systemic immunity are found in chickens with respiratory mycoplasmosis at poultry farms with meat production, which are subject to more longer and more intense influence of human activity.

Highlights

Respiratory mycoplasmosis is a factor infectious disease that is not characterized by relay transmission of the pathogen (Dzhupina, 2002)
One of the most significant negative anthropogenic factors in productive animal husbandry is the complex of breeding and technological components, which are aimed at increasing the growth rate of somatic systems of animals and stimulating the function of reproduction, which directly influences the decrease of immunity
As a result of the pathological anatomical section of chickens suffering from respiratory mycoplasmosis, it was found that the main morphological changes were found in the respiratory organs and did not depend on the production of the poultry farm

Summary

Introduction

Respiratory mycoplasmosis is a factor infectious disease that is not characterized by relay transmission of the pathogen (Dzhupina, 2002). The development of immunopathological processes caused by the causative agent of respiratory mycoplasmosis is the ability to damage the endothelium of blood vessels, impaired microcirculation, the formation of microthrombosis, edema and fibrotic degeneration of tissues (Rosengarten et al, 2000; Thilagavathi et al, 2016) It is the impact on the body of birds of various external, including anthropogenic factors, which as synergists activate the pathogenic properties of microorganisms, and leads to clinical manifestation of the disease (Much et al, 2002; Abbas et al, 2018). The influence of mycoplasma and associates on the immune status of the bird organism has not yet been fully disclosed, which is of interest to scientists and to practitioners

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