SEAFDECINSTITUTIONAL REPOSITORY
    • English
    • ไทย
    • 日本語
    • Bahasa Indonesia
  • English 
    • English
    • ไทย
    • 日本語
    • Bahasa Indonesia
  • Login
View Item 
  •   SEAFDEC Institutional Repository (SIR)
  • 03 SEAFDEC External Publications
  • Journal Articles, Conference Papers and Book Chapters by SEAFDEC Staff
  • Journal Articles
  • AQD
  • View Item
  •   SEAFDEC Institutional Repository (SIR)
  • 03 SEAFDEC External Publications
  • Journal Articles, Conference Papers and Book Chapters by SEAFDEC Staff
  • Journal Articles
  • AQD
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Studies on the causative organism of Oreochromis niloticus (Linnaeus) fry mortalities I. Primary isolation and pathogenicity experiments.

Thumbnail
View/Open
Request this document
Date
1987
Author
Lio-Po, Gilda
Sanvictores, Elinor
Page views
41
Share 
 
Metadata
Show full item record

Abstract
Oreochromis niloticus fry reared in 50 L aquaria at a density of 1,000 fry manifested mortalities of 15% daily. Afflicted two-week old fry exhibited darker pigmentation, emaciation lesions, and surface swimming. Parasites and fungi were not observed upon direct microscopic examination of affected fry. Bacterial isolations from weak fry yielded the predominant growth of Pseudomonas sp. Subsequent pathogenicity experiments showed that Pseudomonas sp. is pathogenic at a dose of 10 super(7) cells/ml rearing water but not at a does of 10 super(6) cells/ml rearing water. By and large, the presence or absence of feed during infection did not affect virulence of the test bacteria. Antimicrobial sensitivity tests revealed sensitivity of Pseudomonas) sp. to Chlortetracycline, Colistin, Kanamycin, Oxytetracycline and Polymyxin B, and resistance to Nitrofurantoin and Sulfamethoxazole trimethoprim.
Description
SEAFDEC Contribution No. 211.
URI
http://hdl.handle.net/10862/1271
Suggested Citation
Lio-Po, G., & Sanvictores, E. (1987). Studies on the causative organism of Oreochromis niloticus (Linnaeus) fry mortalities I. Primary isolation and pathogenicity experiments. Journal of Aquaculture in the Tropics, 2(1), 25-30.
Subject
Bacterial diseases; Fish culture; Fry; Mortality; Mortality causes; Pathogens; Oreochromis niloticus; Pseudomonas
Collections
  • AQD [1100]

Related items

Showing items related by title, author, creator and subject.

  • Thumbnail

    Mitigation of sea turtle mortality risks caused by drifting fish aggregating devices (DFADs) 

    Chanrachkij, Isara; Loog-on, Anurak; Siriraksophon, Somboon (Secretariat, Southeast Asian Fisheries Development Center, 2009)
  • Thumbnail

    An assessment of fishing gears that contribute to increased sea turtle mortalities: A case study in Rayong province, Thailand 

    Chanrachkij, Isara; Ananpongsuk, Suppachai; Wanchana, Worawit (Secretariat, Southeast Asian Fisheries Development Center, 2010)
  • Thumbnail

    Advocating preventive measures that inhibit early mortality syndrome in shrimps 

    Tendencia, Eleonor A.; Estilo, Victor Emmanuel J. (Secretariat, Southeast Asian Fisheries Development Center, 2017)
    Early Mortality Syndrome (EMS) is a generic name used to describe the observed mortality occurring within the first 30 days of stocking shrimp (Penaeus sp.) post larvae (PL) in ponds. The aquaculture species reported to ...

© SEAFDEC 2021
Contact Us | Send Feedback
 

 

Browse

All of SIRCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

Login

Statistics

View Usage Statistics
Related Links
SEAFDEC/TD IRSEAFDEC/AQD IRSEAFDEC/MFRDMD IRSEAFDEC/IFRDMD IR

© SEAFDEC 2021
Contact Us | Send Feedback