الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
 |  | from | 134 |  |  |
| | | from | 134 | | |
Abstract
Aeromonas species can contaminate raw milk, pasteurized milk, dairy products
and drinking water and this revealed inadequate hygiene during production, handling
and storage, in addition to their ability to grow at low temperature. So Aeromonas spp.
may be important food borne pathogens in the future.
This study aimed to investigate the prevalence of Aeromonas species in raw
milk, pasteurized milk, milk products (kariesh cheese, damietta cheese and white
refrigerator cheese), drinking water and water of udder wash. In addition to antimicrobial
susceptibility pattern against commonly used antimicrobial agents and plasmid profiling
lechnique.
Three hundred and fifty random samples, 50 each of in raw milk, pasteurized
milk, milk products (kariesh cheese, damietta cheese and white refrigerators cheese),
drinking water and water of udder wash were collected from markets, street peddlers,
dairy shops and farms in port- said city.
The samples were examined for isolation of Aeromonas species. Samples were
added to 90ml sterilized alkaline peptone water and incubate at 30°c for 24hours, then
plating on starch ampicillin agar, incubated for 24 hours at 30°c. Positive samples
results were are 58%, 26%, 70%, 48%, 40%, 16%, 68% from raw milk, pasteurized
milk, kariesh cheese, damietta cheese, white refrigerator cheese drinking water and
water of udder wash. The highest contamination rate among kariesh cheese samples
was 70% followed by water of udder wash 68% while the lowest contamination rate was
among drinking water samples
Two hundred and two isolates of Aeromonas species were isolated from all
positive samples and identified as A. hydrophila, A. caviae, A. sobria and A.
schubertii at varying degree.