DOI: 10.17265/2159-5828/2017.02.007
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František Zigo, Milan Vasiľ, Juraj Elečkov, Martina Zigová, Zuzana Farkašová

Abstract: Abstract:The objective of this study was to evaluate the effectiveness of different antibiotics against mastitis causing microorganisms during first phase of lactation in herd of 320 Holstein cows in east of Slovakia. Milk samples from quarters were cultured and identified bacteria were subjected to antimicrobial susceptibility test by disc diffusion method to a large number of antibiotics. The results revealed higher sensitivity against tetradelta (100%