الفهرس 
Study on the impact of cattle production in Egypt on the environment in different cattle rearing systems
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Abstract
Production in Egypt on the environment in different rearing systems by isolation and identification of E.coli O157 and Methicillin-Resistant S.aurues (MRSA) in different Cattle and Buffaloes farms in different samples in Cairo Governorate. A total of 251 samples (129 Rectal swabs from Buffaloes, Cows, 82 milk samples from dairy farms,7 soil samples ,10 water samples,10 air samples and 13 human hand swabs) were collected and examined in lab.The occurance of MRSA and E.coli o157 were 32.9%, 49.4% respectively. Application of PCR technique for detection of mecA and virulence gene of E.coli o157, for mec A 8 out of 21 are positive with percentage 38% . While E.coli o157 ,the presence of virulence gene as STX1,HLY,STX2 and EAE with percentage 60%, 60%,10% and 23% respectively