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In vitro testing inhibitory effect of Staphylococcus equorum on growth of Aeromonas dhakensis strain isolated from Caspian Sea Bream (Abramis brama orientalis) intestine
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Nargess Moorak   , Abbasi Akhavan Sepah , Seyedeh Flora Mazhar |
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Abstract: (4051 Views) |
| The aim of the present study is to evaluate the inhibitory effect of
bacterial strain Staphylococcus equorum on growth performance of
pathogenic bacteria, Aeromonas dhakensis. As A. dhakensis is a
pathogenic strain for many kind of the fish species in the domain of
aquaculture industry and being introduced as a threat, it will be
beneficial to inhibit this bacterium by use of a biological procedure
instead of using chemical antibiotics, such as applying probiotics.
Staphylococcus equorum seems to be a good candidate among the
staphylococci group. In this regard after preparing pure cultures of
both strains, the inhibitory effect was being determined through
inducing both strains in BHI media and monitor the growth curve
and also inducing the strains in TSA media and counting the colonyforming
units. The results showed that Staphylococcus equorum has
an inhibitory effect on Aeromonas dhakensis, but the reduction of
colony forming units were not significant (P>0/05), and can be
introduced as a remarkable probiotic strain, but it should be
mentioned that it is necessary to distinct the inhibitory process. |
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| Keywords: Staphylococcus equorum, Aeromonas dhakensis, Abramis brama orientalis, Inhibitory effect. |
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Full-Text [PDF 89 kb]
(1907 Downloads)
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Type of Study: Research |
Subject:
Fisheries
Received: 2015/03/2 | Accepted: 2015/03/2 | Published: 2015/03/2
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