Conditionally pathogenic microflora of the consumption eggs as a risk of toxic infections
2017
Juncu, O. (State Agrarian University of Moldova, Chisinau (Republic of Moldova)
The investigations were aimed to establish the diversity of conditionally pathogenic microflora ina poultry farm producing eggs for consumption and to determine the critical points of eggs contamination withpathogenic microorganisms, which could be a risk of developing food toxic infections in humans. The samples ofbiological material for microbiological investigations were collected in the rooms where laying chickens are kept,from egg shells, from the equipment, in the room for egg collection, sorting, grading and packaging, from feed andmanure. The inseminations were performed on ordinary, selective and specific nutrient media. As a result ofbacteriological and bacterioscopic investigations the presence of Streptococcus colonies was detected on thePeptone Agar medium (room air and egg shell), fungus colonies on Saburo medium (room air and feed), Salmonellacolonies on Bismuth Sulfite Agar and E. coli colonies on Endo medium (faeces). The level of eggs contaminationwith conditionally pathogenic or pathogenic microorganisms varies depending on the hygiene of the premises,equipment, primary and secondary packaging of eggs, air currents in the building and on the content ofmicroorganisms in poultry faeces.
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