Digestive enzyme profiles from foregut contents of blue swimming crab, Portunus pelagicus from Straits of Johor, Malaysia

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dc.contributor.authorAmbok-Bolong Abol-Munafi
dc.contributor.authorNordiana Pilus
dc.contributor.authorRoswati Md Amin
dc.contributor.authorMohamad N. Azra
dc.contributor.authorMhd Ikhwanuddin
dc.date.accessioned2017-04-11T04:08:13Z
dc.date.available2017-04-11T04:08:13Z
dc.date.issued2016-10-17
dc.description.abstractThis study describes the digestive enzyme profiles from foregut contents of the blue swimming crab, Portunus pelagicus (L.), from Straits of Johor, Malaysia. Adult male (mature and immature) and female (ovarian maturation stages 1–4) blue swimming crabs were assayed for the presence of digestive enzymes (protease, trypsin, amylase and lipase) in the foregut. The results show that in some instances, significant differences in enzyme activities were observed between the sexes of P. pelagicus. Protease, trypsin, and amylase were detected in all gonad maturation stages, suggesting that crabs including immature males can readily digest dietary protein and carbohydrates, but not lipids. Trypsin (except for ovarian maturation Stage 4) and lipase (ovarian maturation Stage 4 and mature male only) activities were considerably higher than amylase, indicating that dietary proteins and lipids are more important than carbohydrates and, thus, suggests a carnivorous diet. In conclusion, the changes in enzyme activities between the different maturation stages and sexes reflect natural changes in diet and feeding abilities of P. pelagicus.en_US
dc.identifier.issn1815 3852
dc.identifier.urihttp://hdl.handle.net/123456789/5701
dc.language.isoenen_US
dc.publisherJournal of the Association of Arab Universities for Basic and Applied Sciencesen_US
dc.subjectPortunus pelagicusen_US
dc.subjectForegut contenten_US
dc.subjectOvarian maturation stageen_US
dc.subjectDigestive enzymeen_US
dc.titleDigestive enzyme profiles from foregut contents of blue swimming crab, Portunus pelagicus from Straits of Johor, Malaysiaen_US
dc.typeArticleen_US
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