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<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:contributor>L.A. Ford</dc:contributor>
  <dc:contributor>C. E. Starliper</dc:contributor>
  <dc:contributor>J.D. Teska</dc:contributor>
  <dc:contributor>J.T. Nelson</dc:contributor>
  <dc:contributor>B.N. Jensen</dc:contributor>
  <dc:creator>R. C. Cipriano</dc:creator>
  <dc:date>1996</dc:date>
  <dc:description>&lt;div class=""&gt;&lt;div class="article-section__content en main"&gt;&lt;p&gt;Brook trout&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;Salvelinus fontinalis&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;were treated with single 60-min static baths of 250 mg formalin/L, 3% NaCl, and 15 mg Chloramine-T/L to evaluate the efficacy of these compounds against external infections of Aeromonas salmonicida. Prevalence of&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;A. salmonicida&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;was significantly lower in brook trout treated with Chloramine-T than among those treated with formalin or salt. Further laboratory tests substantiated the therapeutic value of a single treatment of ChloramineT (15 mg/L) against&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;A. salmonicida&lt;/i&gt;. In two experiments, viable counts of&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;A. salmonicida&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;in mucus did not vary among replicate groups of treated brook trout, but the counts for treated fish were significantly (P &amp;lt; 0.05) lower than those for untreated controls. In vitro tube dilution assays indicated that mean minimum inhibitory concentrations of Chloramine-T for 10 isolates of&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;A. salmonicida&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;were 9.0 mg/L for 1 h and 2.25 mg/L, for 24 h. In field trials at the White River National Fish Hatchery (Bethel, Vermont), the pathogen was detected principally as an external infection of juvenile Atlantic salmon&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;Salmo solar&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;maintained in two culture ponds. In one pond, the bacterium accounted for 100% of the total distribution of tnicroflora isolated from mucus. Seven days after treatment with Chloramine-T,&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;A. sahnonicida&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;accounted for 11% of the total bacterial counts identified from these fish. In the second pond,&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;A. salmonicida&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;composed 3% of the counts of bacteria isolated from the mucus of fish before treatment but was not isolated after treatment.&lt;/p&gt;&lt;/div&gt;&lt;/div&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1577/1548-8667(1996)008&lt;0052:COEAST&gt;2.3.CO;2</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>American Fisheries Society</dc:publisher>
  <dc:title>Control of external Aeromonas salmonicida: topical disinfection of salmonids with Chloramine-T</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>