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dc.contributor.authorBenitez, Lita V.
dc.contributor.authorTiro Jr., Leonardo B.
dc.date.accessioned2012-09-29T08:04:29Z
dc.date.available2012-09-29T08:04:29Z
dc.date.issued1982
dc.identifier.citationBenitez, L.V., & Tiro, L.B. (1982). Studies on the digestive proteases of the milkfish Chanos chanos. Marine Biology, 71(3):309–315.en
dc.identifier.issn0025-3162
dc.identifier.urihttp://hdl.handle.net/10862/1125
dc.descriptionSEAFDEC contribution no. 112.en
dc.description.abstractThe protease activity of crude extracts from various organs of the digestive tract of two groups of milkfish was determined. One group (Sample A) derived their food from ponds that had predominantly unicellular algae while the other group (Sample B) were reared on ponds dominated by the filamentous green algae Chaetomorpha brachygona . In general, crude extracts from Sample A fish had a higher protease activity than Sample B fish. In both samples, high protease activity was observed in crude extracts from the pyloric caeca, intestines and pancreas. Chymotryptic activity was observed in crude extracts of pancreas, intestines and pyloric caeca of both fish samples. Tryptic activity was, however, observed only in fish grown on unicellular algae. Experimental evidence suggests that a powerful trypsin inhibitor in Chaetomorpha brachygona may account for the absence of tryptic activity in all crude extracts of Sample B fish. The presence of this inhibitor may also explain the widely observed poor growth rate of milkfish reared on this natural food.en
dc.language.isoenen
dc.publisherSpringeren
dc.subjectChanos chanosen
dc.titleStudies on the digestive proteases of the milkfish Chanos chanosen
dc.typeArticleen
dc.identifier.doi10.1007/BF00397047
dc.citation.volume71
dc.citation.issue3
dc.citation.spage309
dc.citation.epage315
dc.citation.journalTitleMarine Biologyen
dc.subject.asfadigestive systemen
dc.subject.asfaenzymatic activityen
dc.subject.asfacultured organismsen
dc.subject.asfainhibitorsen
dc.subject.asfagrowthen
dc.subject.asfapHen
dc.subject.asfatemperature effectsen
dc.subject.scientificNameChanos chanos
dc.subject.scientificNameChaetomorpha brachygonaen


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