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dc.contributor.authorLio-Po, Gilda
dc.contributor.authorSanvictores, Elinor
dc.date.accessioned2012-12-03T06:33:21Z
dc.date.available2012-12-03T06:33:21Z
dc.date.issued1987
dc.identifier.citationLio-Po, G., & Sanvictores, E. (1987). Studies on the causative organism of Oreochromis niloticus (Linnaeus) fry mortalities 1. Primary isolation and pathogenicity experiments. Journal of Aquaculture in the Tropics, 2(1), 25-30.en
dc.identifier.issn0970-0846
dc.identifier.urihttp://hdl.handle.net/10862/1271
dc.descriptionSEAFDEC Contribution No. 211.en
dc.description.abstractOreochromis 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.en
dc.language.isoenen
dc.publisherTaylor & Francisen
dc.subjectBacterial diseasesen
dc.subjectFish cultureen
dc.subjectFryen
dc.subjectMortalityen
dc.subjectMortality causesen
dc.subjectPathogensen
dc.subjectOreochromis niloticusen
dc.subjectPseudomonasen
dc.titleStudies on the causative organism of Oreochromis niloticus (Linnaeus) fry mortalities I. Primary isolation and pathogenicity experiments.en
dc.typeArticleen
dc.citation.volume2
dc.citation.issue1
dc.citation.spage25
dc.citation.epage30
dc.citation.journalTitleJournal of Aquaculture in the Tropicsen
seafdecaqd.library.callnumberVF SJ 0199
seafdecaqd.databank.controlnumber1987-11


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