Probiotic microorganisms and regulation of cytokine response in prevention of immunopathologic changes during intestinal bacterial infections in poultry

Several infectious diseases including salmonellosis and campylobacteriosis cause enteritidis in poultry and concurrently are the most common bacterial causes of infectious diarrhea in children. Understanding mechanism of arising initial lesions in the epithelial covering of intestine tract and changes in the level of cytokines after infection with Salmonella enterica or Campylobacter species in this project will be able to determine the effective period of aplication and optimalize dose of bacteria with antagonistic activity – probiotic microorganisms. Selection of most suitable probiotic strains under in vitro conditions and during modulation of lesions in the mucus of intestine tract and affection of production of cytokines in infected animals will result in to define probiotics with the most effective preventive effect against above mentioned pathogens.