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Bayero Journal of Pure and Applied Sciences

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Occurrence and antibiogram of Staphylococcus aureus in dairy products consumed in parts of Kaduna State, Nigeria

N.O Okpo, I.O Abdullahi, C.M.Z Whong, J.B Ameh

Abstract


total of 160 dairy products comprising of 80 each of fresh milk and ‘Nono’  (Fermented and defatted) were collected. The samples were cultured and identified by routine bacteriological methods. Prevalence of S.aureus (8.75%) in the products was; for fresh milk 3.75% and ‘Nono’ 5%. The susceptibility profile of the isolates to nine antimicrobial agents revealed a high susceptibility to Gentamicin (100%),  Ciprofloxaxin (92.86%) and Chloramphenicol (92.86%). The isolates had high resistance to Tetracycline (85.71%), Cefoxitin (64.29%), Amoxicillin/Clavulanic acid (64.29%) and Erythromycin (64.29%). A total of 9(64.29%) isolates were resistant to multiple antibiotics. Multiple antibiotics resistance index (MARI) ranged from 7.14% (0.7) to 21.43% (0.3). The presence of S.aureus and resistance to commonly used antibiotics by the isolates posses a health risk for consumers of these milk products.


Key words: Dairy Products, Staphylococcus aureus, susceptibility profile, fresh milk, ‘Nono’.




http://dx.doi.org/10.4314/bajopas.v9i2.39
AJOL African Journals Online