Two-tailed fancy goldfish challenged with Bacteroides spp. isolated from shubunkin goldfish

  • Alvin T Reyes College of Fisheries-Freshwater Aquaculture Center, Central Luzon State University, Science City of Muñoz, Nueva Ecija, Philippines
DOI https://doi.org/10.22270/jddt.v9i3.2681

Abstract

This study aimed to isolate, morpho-biochemically characterize and identify the most common bacterium in diseased shubunkin goldfish, and challenge the two-tailed fancy goldfish using the identified bacterium.  With the aid of Bergey’s Manual of Determinative Bacteriology, the bacterium was identified as Bacteroides spp. The bacterium was characterized as follows: Gram-negative, coccobacillus, facultative anaerobe, hemolytic, glucose and sucrose fermentative but not lactose and xylose, negative to catalase, Methyl red, Voges-Proskauer and hydrogen sulphide production tests, and positive to Simmon’s citrate utilization, liquefaction of gelatin, nitrate reduction, urea hydrolysis and indole production.  Two-tailed goldfish challenged with Bacteroides spp. showed clinical signs such as gasping for air, irritability, sloughing of scale, lesion and watery internal organs.


Keywords: Shubunkin goldfish, two-tailed goldfish, biochemical tests, Bacteroides

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Author Biography

Alvin T Reyes, College of Fisheries-Freshwater Aquaculture Center, Central Luzon State University, Science City of Muñoz, Nueva Ecija, Philippines

College of Fisheries-Freshwater Aquaculture Center, Central Luzon State University, Science City of Muñoz, Nueva Ecija, Philippines

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How to Cite
1.
Reyes AT. Two-tailed fancy goldfish challenged with Bacteroides spp. isolated from shubunkin goldfish. JDDT [Internet]. 15May2019 [cited 27Jan.2021];9(3):360-5. Available from: http://jddtonline.info/index.php/jddt/article/view/2681
Issue
Vol 9 No 3 (2019): Volume 9, Issue 3, May-June 2019
Section
Research
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