EN
Dietary supplements and symbiotic cultures of bacteria are used in commercial poultry farms to stimulate the birds’ metabolism. The aim of the study was to evaluate the influence of Effective Microorganisms (EMTM) administered in feed and water to quails infected and not infected with C. parvum on selected serum biochemical parameters. The resulting infection with C. parvum was subclinical, and parasitological tests revealed no ooysts in fecal samples, but in histopathological examination parasites were seen in the tissue samples. Blood for biochemical analysis was sampled on days 0, 3, 6 and 9 post infection. Lower CHOL levels, lower LDH activity and higher TP content were observed in quails administered EM. Changes in the remaining parameters (ALT, AST, ALB) remained within the respective norms.