Incidence of some pathogenic microorganisms in bulk tank milk in some farms of Gharbia governorate

Abstract

Milk and its products can harbor a variety of microorganisms and can be important sources of food bornepathogens. The presence of food borne pathogens in milk is due to direct contact with contaminated sourcesin the dairy farm environment and to excretion from the udder of an infected animal. The foodbornepathogens can reach humans by direct contact, ingestion of raw contaminated milk or cheese, orcontamination during the processing of milk products. Isolation of bacterial pathogens with similar biotypesfrom dairy farms and from outbreaks of human disease substantiates this hypothesis. This study wasconducted to determine the incidence of some pathogenic micro organisms in bulk tank milk from 3 dairyfarms in Gharbia governorate, Egypt. Staphylococcus aureas, Streptococcus agalactiae and Escherichiacoli were detected with percentages of 37.5, 6.25 and 12.5% in examined bulk milk samples collected fromfarm I, 25, 12.5 and 25% from farm II and 12.5, zero, and 12.5% from farm III., respectively. The presenceof these pathogenic microorganisms in bulk tank milk contribute a potential risk to public health, thesefindings underscore the need to control them and to limit bacterial multiplication in bulk tank milk