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The Evaluation of Brucella Spp. Isolation Rates in Ruminant Abortion Cases by Using Different Selective Media Cover

The Evaluation of Brucella Spp. Isolation Rates in Ruminant Abortion Cases by Using Different Selective Media

Open Access
|Oct 2018

Abstract

The aim of this study is to evaluate the success of Brucella spp. isolation in ruminant abortion cases by using different selective media. To this end, 58 samples from ruminant abortion cases were utilized. 4 selective media; namely, Farrell Medium (FM), CITA Medium (CM), Modified Thayer Martin (MTM) and Jones & Morgan (JM) were preferred for isolation. In addition to these, one medium with antibiotics was used to extend the range of the results. Suspensions prepared from organ and fetal stomach contents were inoculated to media plates and incubated at 37C° for 5-8 days in 5-10% CO2 condition. Conventional biotyping method was used to identify Brucella isolates within the level of species and biovar. MTM (67.2%) and Farrell (65.5%) outperformed the other media with regards to isolation rate. However, regarding the inhibition ability against contaminant microrganisms, Farrell (86.2%) and CITA (72%) have the highest and second highest percentages respectively. The media’s inhibition ability was examined in the samples in which Brucella spp. isolation occurred to be able to investigate the correlations between isolation and inhibition. Lower isolation percentage was observed in the samples in which the media displayed the lowest inhibition ability against contaminants. In this context, using two different selective media with high inhibition ability against contaminants may be recommended to enhance the isolation rate. Moreover, the components stimulating the growth of Brucella strains might be added to the media to obtain better results.

Language: English
Page range: 177 - 186
Submitted on: Mar 6, 2018
Accepted on: Jul 4, 2018
Published on: Oct 29, 2018
Published by: Ss. Cyril and Methodius University in Skopje
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year

© 2018 Mustafa Sencer Karagul, Serkan Ikiz, published by Ss. Cyril and Methodius University in Skopje
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.