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dc.contributor.authorTraifalgar, Rex Ferdinand
dc.contributor.editorQuinitio, Emilia T.
dc.contributor.editorParado-Estepa, Fe Dolores
dc.contributor.editorColoso, Relicardo M.
dc.date.accessioned2017-08-25T09:07:29Z
dc.date.accessioned2017-08-25T16:34:24Z
dc.date.available2017-08-25T09:07:29Z
dc.date.available2017-08-25T16:34:24Z
dc.date.issued2017
dc.identifier.citationTraifalgar, R. F. (2017). Development of immunostimulant for mud crab, Scylla serrata. In E. T. Quinitio, F. D. Parado-Estepa, & R. M. Coloso (Eds.), Philippines : In the forefront of the mud crab industry development : proceedings of the 1st National Mud Crab Congress, 16-18 November 2015, Iloilo City, Philippines (p. 155). Tigbauan, Iloilo, Philippines: Aquaculture Department, Southeast Asian Fisheries Development Center.en
dc.identifier.isbn9789719931072
dc.identifier.urihttp://hdl.handle.net/10862/3190
dc.descriptionAbstract only.en
dc.description.abstractNon-specific immune activitation is considered a potential prophylactic approach in the prevention of disease outbreaks in crustacean aquaculture. The present investigation evaluates the dietary supplementation of bacterial and algal derived immunostimulants including peptidoglycan, ergosan, mannan oligosaccharide and acidic polysaccharides from Ulva, Sargassum and Padina to enhance the immunological responses and resistance of Scylla serrata juveniles against white spot syndrome virus (WSSV) infection. Each of the test immunostimulant was optimized for dose and frequency of administration. Results showed significant enhancement of shrimp survival against WSSV infection if Mannan oligosaccharide is supplemented at 2000 mg kg-1 diet applied every 3 days. Optimum dose and frequency of application for peptidoglycan was determined as 1000 mg kg-1 diet applied every 3 days while a dose of 2000 mg kg-1 diet applied every 3 days was found optimum for ergosan. Enhancement of survival was also observed in crabs given the acidic polysaccharide extracts from seaweeds. Better survival was observed in the treatment receiving Ulva at 1000 mg kg-1 applied every 3 days. Similar dose and frequency were also observed to enhance the resistance of the juvenile crabs against WSSV when maintained with diets supplemented with Padina and Sargassum acidic polysaccharides. The high survival in these treatments is associated with the prominent enhancement of immunological responses including phenol oxidase activity, respiratory burst and total hemocyte counts. At optimum dosage and application frequency, these immunostimulants are observed to improve overall growth performance of the juvenile crab. These results suggest that dietary supplementation of peptidoglycan, ergosan mannan oligosaccharide, and acidic polysaccharides from Ulva, Sargassum and Padina at a dose described above can be used to boost the immunological response and enhance the resistance of S. serrata juveniles against WSSV infection.en
dc.language.isoenen
dc.publisherAquaculture Department, Southeast Asian Fisheries Development Centeren
dc.subjectPadina
dc.subjectSargassum
dc.subjectUlva
dc.subjectPhilippinesen
dc.titleDevelopment of immunostimulant for mud crab, Scylla serrataen
dc.typeConference paperen
dc.citation.spage155
dc.citation.conferenceTitlePhilippines : In the forefront of the mud crab industry development : proceedings of the 1st National Mud Crab Congress, 16-18 November 2015, Iloilo City, Philippinesen
dc.subject.asfaBacterial diseasesen
dc.subject.asfaBioactive compoundsen
dc.subject.asfaCrab cultureen
dc.subject.asfaDietsen
dc.subject.asfaDisease controlen
dc.subject.asfaGrowthen
dc.subject.asfaImmunityen
dc.subject.asfaInfectious diseasesen
dc.subject.asfaJuvenilesen
dc.subject.asfaMarine crustaceansen
dc.subject.asfaProphylaxisen
dc.subject.asfaSaccharidesen
dc.subject.asfaSurvivalen
dc.subject.asfaTherapyen
dc.subject.asfaVibriosisen


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