Prevalence and Risk Factors of Mastitis and Isolation, Identification and Antibiogram of Staphylococcus Species from Mastitis Positive Zebu Cows in Toke Kutaye, Cheliya, and Dendi Districts, West Shewa Zone, Oromia, Ethiopia

• Published in: Infection and drug resistance Vol. 14; pp. 987 - 998
• Main Authors: Dabele, Dimshasha Tolera, Borena, Bizunesh Mideksa, Admasu, Petros, Gebremedhin, Endrias Zewdu, Marami, Lencho Megersa
• Format: Journal Article
• Language: English
• Published: New Zealand Dove Medical Press Limited 01.01.2021; Taylor & Francis Ltd; Dove; Dove Medical Press
• Subjects: Animal lactation; Animals; Antimicrobial agents; antimirobial resistance; Bedding; Cattle; Coagulase; Dairy industry; Drug resistance in microorganisms; Laboratories; Lactation; Mastitis; Milk production; Multidrug resistance; Original Research; Parity; prevalence; risk factor; Risk factors; Sample size; Sampling techniques; Species; Staphylococcus; Staphylococcus aureus infections; zebu cows; Ethiopia; United States > US; California; prevalence; Zebu cows; mastitis; antimicrobial resistance; risk factor; Staphylococcus
• ISSN: 1178-6973; 1178-6973
• DOI: 10.2147/IDR.S295257

Mastitis is one of the major global problems severely affecting the dairy sector. species are the primary bacteria consistently identified from mastitic milk. This study was aimed to estimate the prevalence of mastitis, isolate species, determine risk factors, and the antimicrobial susceptibility profile of species from mastitic Zebu cows in West Shewa Zone, Ethiopia. A total of 404 lactating Zebu cows were tested for mastitis. Isolation and identification of from mastitis positive samples were done by bacteriological culture and biochemical tests. Further identification of coagulase-negative (CNS) species and antimicrobial susceptibility test of the and the CNS was done by the Phoenix machine. Descriptive statistics was used to summarize the prevalence of mastitis while the Chi-square test and logistic regression were used to determine the association between the prevalence of mastitis and the risk factors and the magnitude of association, respectively. The present study showed an overall cow and quarter level mastitis prevalence of 30.5% (95% confidence interval [CI]:26.0-35.2) and 8.3% (95% CI 7.0-9.8), respectively. The quarter level isolation rate of species was 38.6% (95% CI: 30.1-47.6). Five species namely , and were identified. The latter two are CNS and were identified for the first time in Ethiopia. Antimicrobial susceptibility testing showed none of the isolates of , 100% of , and 87.5% of species were multidrug-resistant. The independent predictors of mastitis (p<0.05) were the age of the cows, stage of lactation, type of housing, the interval of bedding cleaning, and previous history of mastitis. The study showed a high prevalence of mastitis, species, and multidrug resistant , and in Zebu cows.