University of Khartoum

Frequencies and Antibiotic Susceptibility Patterns of Bacteria Causing Mastitis among Cows and Their Environment in Khartoum State

Frequencies and Antibiotic Susceptibility Patterns of Bacteria Causing Mastitis among Cows and Their Environment in Khartoum State

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Title: Frequencies and Antibiotic Susceptibility Patterns of Bacteria Causing Mastitis among Cows and Their Environment in Khartoum State
Author: ElYas, Ibtisam
Abstract: The present study was conducted to investigate mastitis causing organisms in dairy cows and to correlate them with the isolates from udder skin of cows as well as their environment (air). The data revealed higher incidences of subclinical mastitis than the clinical form of the disease. Staphylococcus aureus (11.5%), Streptococcus agalactiae (0.83%), Escherichia coli (7N, Kleb siell a pneumoniae (9.4%) and Enterocoecus faeeium (2.5%), were the important pathogens isolated from mastitic cows' milk samples. The udder' skin of the cows revealed the presence ofPseudomonas aerugenosa (9.5%) and Staphylococcus aureus (0.95%). However, the samples sediment from the air of the cows fences, revealed as a pathogen, only the presence of S. aureus (0.95%). Other non- serious mastitis pathogens were also found, in the three groups of samples, during the present study. Antibiotic susceptibility tests were undertaken. The most prominent resistant was those of S. aureus towards tetracycline (79.41%) followed by penicillin (29.41%) and amoxacillin- cluvenic acids (20.59%). The susceptibility of E. coli showed resistance towards erythromycin (76.47%), tetracycline (29.41%), streptomycin and sulfamexazol-trimethoprim (17.65%) and kanamycin (5.88%). Similarly Enterococcus faecium, showed multiple range of resistant to the drugs tested.
Description: This paper had been presented for promotion at the university of Khartoum. To get the full text please contact the other at Ibtisammohamed@hotmail.com
URI: http://hdl.handle.net/123456789/6928
Date: 2006


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