RESEARCH OF THE ACTIVITY OF DISINFECTANTS TO MICROORGANISMS ISOLATED FROM PATHOLOGICAL POULTRY MATERIAL

Disinfectants should have low toxicity and allergenicity, have good solubility in water or easily form suspensions, emulsions in it, act quickly and in small concentrations, be sufficiently stable during storage and environmentally safe. An important characteristic of each disinfectant should also be a wide spectrum of antimicrobial action on microorganisms. Therefore, the sensitivity of strains of microorganisms isolated from pathological poultry material to disinfectants was studied. During the identification of cultures isolated from the pathological material of poultry, six isolates of Essherichia coli and three isolates of Salmonella enteritidis were isolated. Four disinfectants were used for the study, which included alkyldimethylbenzylammonium chloride and glutaraldehyde (sample №1), didecyldimethylammonium bromide (sample №2), polyhexamethylenebiguanidine hydrochloride (sample №3), and peracetic acid (sample № 4). It was established that out of six isolates E. coli isolated from the pathological material, one was resistant to the disinfectant based on polyhexamethylenebiguanidine hydrochloride, which was 16,7 % and out of three S. enteritidis isolates, two isolates were 66,7 %. Three out of six E. coli isolates were resistant to the disinfectant based on peracetic acid, which was 50 %, and one isolate was resistant out of three S. enteritidis isolates, which was 33,3 %.