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

AI Article Synopsis

  • Mastitis is a significant issue in the dairy industry, affecting Zebu cows in West Shewa Zone, Ethiopia, and this study aimed to quantify its prevalence and investigate associated factors.
  • The study tested 404 lactating cows, revealing a mastitis prevalence of 30.5% and identified multiple bacterial species, including two coagulase-negative species reported for the first time in Ethiopia.
  • Antimicrobial testing showed high multidrug resistance among certain bacteria, with key risk factors for mastitis being cow age, lactation stage, housing type, bedding cleaning frequency, and prior mastitis history.

Article Abstract

Purpose: 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.

Materials And Methods: 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.

Results: 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.

Conclusion: The study showed a high prevalence of mastitis, species, and multidrug resistant , and in Zebu cows.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7966297PMC
http://dx.doi.org/10.2147/IDR.S295257DOI Listing

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