Studies on the penicillin- resistance with same enzyme characteristics and biochemicaı tests of staph. aureus isolated from cows milk with mastitis
Nineteen strains of Staph. aureus isolated from cows milk with mastitis were tested for their ability to produce coagulase, phosphatase, catalase, B-lactamase, clumping factor, oxydation/fermentcı. tion (O/F) and resistance of penicillin and ampicillin.<p> All of the strains have produced B-la...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Selcuk University Press
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| Series: | Eurasian Journal of Veterinary Sciences |
| Online Access: | http://eurasianjvetsci.org/pdf.php3?id=917 |
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| Summary: | Nineteen strains of Staph. aureus isolated from cows
milk with mastitis were tested for their ability to produce coagulase,
phosphatase, catalase, B-lactamase, clumping factor, oxydation/fermentcı.
tion (O/F) and resistance of penicillin and ampicillin.<p>
All of the strains have produced B-lactamase and their resistance
rates to penicillin and ampicillin were 94.9%, 47.9% respectively. Catalase,
ı;ıhosphatase and 0/l<., producing rate of all Staph. aureus were positive
100%. The Coagulase tests found to be positive at the rate of 89.8% with
rabbit plasma, 73.7% with cow plasma, 100% with mixture of rabbit-cow
piasma. The rate of positive clumping factors was also found to be 89.8%,
94.9%, 100% with rabbit, cow and mix plasma, respectively. 73.7% of all
strains have grown on Mannitol Salt Agar plates. 12 strains producedgolden
cooured colonies. All of the 6 strains were intracutaneously
inoculated to rabbits reduced necrosis. |
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| ISSN: | 1309-6958 2146-1953 |